From 4f3b35c157e43107cc7e1f1aa06694e8b22e10bb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 1 Apr 2015 19:57:53 -0400 Subject: net/9p: switch the guts of p9_client_{read,write}() to iov_iter ... and have get_user_pages_fast() mapping fewer pages than requested to generate a short read/write. Signed-off-by: Al Viro --- net/9p/client.c | 117 +++++++++++++++++++++--------------------- net/9p/protocol.c | 24 +++------ net/9p/trans_virtio.c | 137 +++++++++++++++++++++++++++++--------------------- 3 files changed, 146 insertions(+), 132 deletions(-) (limited to 'net') diff --git a/net/9p/client.c b/net/9p/client.c index e86a9bea1d16..9ef5d85f082f 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include @@ -555,7 +556,7 @@ out_err: */ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req, - char *uidata, int in_hdrlen, int kern_buf) + struct iov_iter *uidata, int in_hdrlen) { int err; int ecode; @@ -591,16 +592,11 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req, ename = &req->rc->sdata[req->rc->offset]; if (len > inline_len) { /* We have error in external buffer */ - if (kern_buf) { - memcpy(ename + inline_len, uidata, - len - inline_len); - } else { - err = copy_from_user(ename + inline_len, - uidata, len - inline_len); - if (err) { - err = -EFAULT; - goto out_err; - } + err = copy_from_iter(ename + inline_len, + len - inline_len, uidata); + if (err != len - inline_len) { + err = -EFAULT; + goto out_err; } } ename = NULL; @@ -806,8 +802,8 @@ reterr: * p9_client_zc_rpc - issue a request and wait for a response * @c: client session * @type: type of request - * @uidata: user bffer that should be ued for zero copy read - * @uodata: user buffer that shoud be user for zero copy write + * @uidata: destination for zero copy read + * @uodata: source for zero copy write * @inlen: read buffer size * @olen: write buffer size * @hdrlen: reader header size, This is the size of response protocol data @@ -816,9 +812,10 @@ reterr: * Returns request structure (which client must free using p9_free_req) */ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type, - char *uidata, char *uodata, + struct iov_iter *uidata, + struct iov_iter *uodata, int inlen, int olen, int in_hdrlen, - int kern_buf, const char *fmt, ...) + const char *fmt, ...) { va_list ap; int sigpending, err; @@ -841,12 +838,8 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type, } else sigpending = 0; - /* If we are called with KERNEL_DS force kern_buf */ - if (segment_eq(get_fs(), KERNEL_DS)) - kern_buf = 1; - err = c->trans_mod->zc_request(c, req, uidata, uodata, - inlen, olen, in_hdrlen, kern_buf); + inlen, olen, in_hdrlen); if (err < 0) { if (err == -EIO) c->status = Disconnected; @@ -876,7 +869,7 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type, if (err < 0) goto reterr; - err = p9_check_zc_errors(c, req, uidata, in_hdrlen, kern_buf); + err = p9_check_zc_errors(c, req, uidata, in_hdrlen); trace_9p_client_res(c, type, req->rc->tag, err); if (!err) return req; @@ -1545,11 +1538,24 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count) { char *dataptr; - int kernel_buf = 0; struct p9_req_t *req; struct p9_client *clnt; int err, rsize, non_zc = 0; - + struct iov_iter to; + union { + struct kvec kv; + struct iovec iov; + } v; + + if (data) { + v.kv.iov_base = data; + v.kv.iov_len = count; + iov_iter_kvec(&to, ITER_KVEC | READ, &v.kv, 1, count); + } else { + v.iov.iov_base = udata; + v.iov.iov_len = count; + iov_iter_init(&to, READ, &v.iov, 1, count); + } p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d\n", fid->fid, (unsigned long long) offset, count); @@ -1565,18 +1571,12 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, /* Don't bother zerocopy for small IO (< 1024) */ if (clnt->trans_mod->zc_request && rsize > 1024) { - char *indata; - if (data) { - kernel_buf = 1; - indata = data; - } else - indata = (__force char *)udata; /* * response header len is 11 * PDU Header(7) + IO Size (4) */ - req = p9_client_zc_rpc(clnt, P9_TREAD, indata, NULL, rsize, 0, - 11, kernel_buf, "dqd", fid->fid, + req = p9_client_zc_rpc(clnt, P9_TREAD, &to, NULL, rsize, 0, + 11, "dqd", fid->fid, offset, rsize); } else { non_zc = 1; @@ -1596,16 +1596,9 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, p9_debug(P9_DEBUG_9P, "<<< RREAD count %d\n", count); - if (non_zc) { - if (data) { - memmove(data, dataptr, count); - } else { - err = copy_to_user(udata, dataptr, count); - if (err) { - err = -EFAULT; - goto free_and_error; - } - } + if (non_zc && copy_to_iter(dataptr, count, &to) != count) { + err = -EFAULT; + goto free_and_error; } p9_free_req(clnt, req); return count; @@ -1622,9 +1615,23 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, u64 offset, u32 count) { int err, rsize; - int kernel_buf = 0; struct p9_client *clnt; struct p9_req_t *req; + struct iov_iter from; + union { + struct kvec kv; + struct iovec iov; + } v; + + if (data) { + v.kv.iov_base = data; + v.kv.iov_len = count; + iov_iter_kvec(&from, ITER_KVEC | WRITE, &v.kv, 1, count); + } else { + v.iov.iov_base = udata; + v.iov.iov_len = count; + iov_iter_init(&from, WRITE, &v.iov, 1, count); + } p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %d\n", fid->fid, (unsigned long long) offset, count); @@ -1640,22 +1647,12 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, /* Don't bother zerocopy for small IO (< 1024) */ if (clnt->trans_mod->zc_request && rsize > 1024) { - char *odata; - if (data) { - kernel_buf = 1; - odata = data; - } else - odata = (char *)udata; - req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, odata, 0, rsize, - P9_ZC_HDR_SZ, kernel_buf, "dqd", + req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, &from, 0, rsize, + P9_ZC_HDR_SZ, "dqd", fid->fid, offset, rsize); } else { - if (data) - req = p9_client_rpc(clnt, P9_TWRITE, "dqD", fid->fid, - offset, rsize, data); - else - req = p9_client_rpc(clnt, P9_TWRITE, "dqU", fid->fid, - offset, rsize, udata); + req = p9_client_rpc(clnt, P9_TWRITE, "dqV", fid->fid, + offset, rsize, &from); } if (IS_ERR(req)) { err = PTR_ERR(req); @@ -2068,6 +2065,10 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset) struct p9_client *clnt; struct p9_req_t *req; char *dataptr; + struct kvec kv = {.iov_base = data, .iov_len = count}; + struct iov_iter to; + + iov_iter_kvec(&to, READ | ITER_KVEC, &kv, 1, count); p9_debug(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d\n", fid->fid, (unsigned long long) offset, count); @@ -2088,8 +2089,8 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset) * response header len is 11 * PDU Header(7) + IO Size (4) */ - req = p9_client_zc_rpc(clnt, P9_TREADDIR, data, NULL, rsize, 0, - 11, 1, "dqd", fid->fid, offset, rsize); + req = p9_client_zc_rpc(clnt, P9_TREADDIR, &to, NULL, rsize, 0, + 11, "dqd", fid->fid, offset, rsize); } else { non_zc = 1; req = p9_client_rpc(clnt, P9_TREADDIR, "dqd", fid->fid, diff --git a/net/9p/protocol.c b/net/9p/protocol.c index ab9127ec5b7a..e9d0f0c1a048 100644 --- a/net/9p/protocol.c +++ b/net/9p/protocol.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include "protocol.h" @@ -69,10 +70,11 @@ static size_t pdu_write(struct p9_fcall *pdu, const void *data, size_t size) } static size_t -pdu_write_u(struct p9_fcall *pdu, const char __user *udata, size_t size) +pdu_write_u(struct p9_fcall *pdu, struct iov_iter *from, size_t size) { size_t len = min(pdu->capacity - pdu->size, size); - if (copy_from_user(&pdu->sdata[pdu->size], udata, len)) + struct iov_iter i = *from; + if (copy_from_iter(&pdu->sdata[pdu->size], len, &i) != len) len = 0; pdu->size += len; @@ -437,23 +439,13 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt, stbuf->extension, stbuf->n_uid, stbuf->n_gid, stbuf->n_muid); } break; - case 'D':{ - uint32_t count = va_arg(ap, uint32_t); - const void *data = va_arg(ap, const void *); - - errcode = p9pdu_writef(pdu, proto_version, "d", - count); - if (!errcode && pdu_write(pdu, data, count)) - errcode = -EFAULT; - } - break; - case 'U':{ + case 'V':{ int32_t count = va_arg(ap, int32_t); - const char __user *udata = - va_arg(ap, const void __user *); + struct iov_iter *from = + va_arg(ap, struct iov_iter *); errcode = p9pdu_writef(pdu, proto_version, "d", count); - if (!errcode && pdu_write_u(pdu, udata, count)) + if (!errcode && pdu_write_u(pdu, from, count)) errcode = -EFAULT; } break; diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 36a1a739ad68..e62bcbbabb5e 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -217,15 +217,15 @@ static int p9_virtio_cancel(struct p9_client *client, struct p9_req_t *req) * @start: which segment of the sg_list to start at * @pdata: a list of pages to add into sg. * @nr_pages: number of pages to pack into the scatter/gather list - * @data: data to pack into scatter/gather list + * @offs: amount of data in the beginning of first page _not_ to pack * @count: amount of data to pack into the scatter/gather list */ static int pack_sg_list_p(struct scatterlist *sg, int start, int limit, - struct page **pdata, int nr_pages, char *data, int count) + struct page **pdata, int nr_pages, size_t offs, int count) { int i = 0, s; - int data_off; + int data_off = offs; int index = start; BUG_ON(nr_pages > (limit - start)); @@ -233,16 +233,14 @@ pack_sg_list_p(struct scatterlist *sg, int start, int limit, * if the first page doesn't start at * page boundary find the offset */ - data_off = offset_in_page(data); while (nr_pages) { - s = rest_of_page(data); + s = PAGE_SIZE - data_off; if (s > count) s = count; /* Make sure we don't terminate early. */ sg_unmark_end(&sg[index]); sg_set_page(&sg[index++], pdata[i++], s, data_off); data_off = 0; - data += s; count -= s; nr_pages--; } @@ -314,11 +312,20 @@ req_retry: } static int p9_get_mapped_pages(struct virtio_chan *chan, - struct page **pages, char *data, - int nr_pages, int write, int kern_buf) + struct page ***pages, + struct iov_iter *data, + int count, + size_t *offs, + int *need_drop) { + int nr_pages; int err; - if (!kern_buf) { + + if (!iov_iter_count(data)) + return 0; + + if (!(data->type & ITER_KVEC)) { + int n; /* * We allow only p9_max_pages pinned. We wait for the * Other zc request to finish here @@ -329,26 +336,49 @@ static int p9_get_mapped_pages(struct virtio_chan *chan, if (err == -ERESTARTSYS) return err; } - err = p9_payload_gup(data, &nr_pages, pages, write); - if (err < 0) - return err; + n = iov_iter_get_pages_alloc(data, pages, count, offs); + if (n < 0) + return n; + *need_drop = 1; + nr_pages = DIV_ROUND_UP(n + *offs, PAGE_SIZE); atomic_add(nr_pages, &vp_pinned); + return n; } else { /* kernel buffer, no need to pin pages */ - int s, index = 0; - int count = nr_pages; - while (nr_pages) { - s = rest_of_page(data); - if (is_vmalloc_addr(data)) - pages[index++] = vmalloc_to_page(data); + int index; + size_t len; + void *p; + + /* we'd already checked that it's non-empty */ + while (1) { + len = iov_iter_single_seg_count(data); + if (likely(len)) { + p = data->kvec->iov_base + data->iov_offset; + break; + } + iov_iter_advance(data, 0); + } + if (len > count) + len = count; + + nr_pages = DIV_ROUND_UP((unsigned long)p + len, PAGE_SIZE) - + (unsigned long)p / PAGE_SIZE; + + *pages = kmalloc(sizeof(struct page *) * nr_pages, GFP_NOFS); + if (!*pages) + return -ENOMEM; + + *need_drop = 0; + p -= (*offs = (unsigned long)p % PAGE_SIZE); + for (index = 0; index < nr_pages; index++) { + if (is_vmalloc_addr(p)) + (*pages)[index] = vmalloc_to_page(p); else - pages[index++] = kmap_to_page(data); - data += s; - nr_pages--; + (*pages)[index] = kmap_to_page(p); + p += PAGE_SIZE; } - nr_pages = count; + return len; } - return nr_pages; } /** @@ -364,8 +394,8 @@ static int p9_get_mapped_pages(struct virtio_chan *chan, */ static int p9_virtio_zc_request(struct p9_client *client, struct p9_req_t *req, - char *uidata, char *uodata, int inlen, - int outlen, int in_hdr_len, int kern_buf) + struct iov_iter *uidata, struct iov_iter *uodata, + int inlen, int outlen, int in_hdr_len) { int in, out, err, out_sgs, in_sgs; unsigned long flags; @@ -373,41 +403,32 @@ p9_virtio_zc_request(struct p9_client *client, struct p9_req_t *req, struct page **in_pages = NULL, **out_pages = NULL; struct virtio_chan *chan = client->trans; struct scatterlist *sgs[4]; + size_t offs; + int need_drop = 0; p9_debug(P9_DEBUG_TRANS, "virtio request\n"); if (uodata) { - out_nr_pages = p9_nr_pages(uodata, outlen); - out_pages = kmalloc(sizeof(struct page *) * out_nr_pages, - GFP_NOFS); - if (!out_pages) { - err = -ENOMEM; - goto err_out; - } - out_nr_pages = p9_get_mapped_pages(chan, out_pages, uodata, - out_nr_pages, 0, kern_buf); - if (out_nr_pages < 0) { - err = out_nr_pages; - kfree(out_pages); - out_pages = NULL; - goto err_out; + int n = p9_get_mapped_pages(chan, &out_pages, uodata, + outlen, &offs, &need_drop); + if (n < 0) + return n; + out_nr_pages = DIV_ROUND_UP(n + offs, PAGE_SIZE); + if (n != outlen) { + __le32 v = cpu_to_le32(n); + memcpy(&req->tc->sdata[req->tc->size - 4], &v, 4); + outlen = n; } - } - if (uidata) { - in_nr_pages = p9_nr_pages(uidata, inlen); - in_pages = kmalloc(sizeof(struct page *) * in_nr_pages, - GFP_NOFS); - if (!in_pages) { - err = -ENOMEM; - goto err_out; - } - in_nr_pages = p9_get_mapped_pages(chan, in_pages, uidata, - in_nr_pages, 1, kern_buf); - if (in_nr_pages < 0) { - err = in_nr_pages; - kfree(in_pages); - in_pages = NULL; - goto err_out; + } else if (uidata) { + int n = p9_get_mapped_pages(chan, &in_pages, uidata, + inlen, &offs, &need_drop); + if (n < 0) + return n; + in_nr_pages = DIV_ROUND_UP(n + offs, PAGE_SIZE); + if (n != inlen) { + __le32 v = cpu_to_le32(n); + memcpy(&req->tc->sdata[req->tc->size - 4], &v, 4); + inlen = n; } } req->status = REQ_STATUS_SENT; @@ -426,7 +447,7 @@ req_retry_pinned: if (out_pages) { sgs[out_sgs++] = chan->sg + out; out += pack_sg_list_p(chan->sg, out, VIRTQUEUE_NUM, - out_pages, out_nr_pages, uodata, outlen); + out_pages, out_nr_pages, offs, outlen); } /* @@ -444,7 +465,7 @@ req_retry_pinned: if (in_pages) { sgs[out_sgs + in_sgs++] = chan->sg + out + in; in += pack_sg_list_p(chan->sg, out + in, VIRTQUEUE_NUM, - in_pages, in_nr_pages, uidata, inlen); + in_pages, in_nr_pages, offs, inlen); } BUG_ON(out_sgs + in_sgs > ARRAY_SIZE(sgs)); @@ -478,7 +499,7 @@ req_retry_pinned: * Non kernel buffers are pinned, unpin them */ err_out: - if (!kern_buf) { + if (need_drop) { if (in_pages) { p9_release_pages(in_pages, in_nr_pages); atomic_sub(in_nr_pages, &vp_pinned); -- cgit v1.2.3-70-g09d2 From 070b3656cf228eaaef7b28b59264c5c7cdbdd0fb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 1 Apr 2015 20:17:51 -0400 Subject: 9p: switch p9_client_write() to passing it struct iov_iter * ... and make it loop until it's done Signed-off-by: Al Viro --- fs/9p/vfs_file.c | 24 +++++------- fs/9p/xattr.c | 32 +++++----------- include/net/9p/client.h | 5 ++- net/9p/client.c | 98 +++++++++++++++++++++---------------------------- 4 files changed, 62 insertions(+), 97 deletions(-) (limited to 'net') diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index b40133796b87..75a2bb01420d 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include @@ -457,24 +458,20 @@ v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid, const char __user *data, size_t count, loff_t *offset, int invalidate) { - int n; - loff_t i_size; - size_t total = 0; loff_t origin = *offset; - unsigned long pg_start, pg_end; + struct iovec iov = {.iov_base = (void __user *)data, .iov_len = count}; + struct iov_iter from; + int total, err = 0; p9_debug(P9_DEBUG_VFS, "data %p count %d offset %x\n", data, (int)count, (int)*offset); - do { - n = p9_client_write(fid, NULL, data+total, origin+total, count); - if (n <= 0) - break; - count -= n; - total += n; - } while (count > 0); + iov_iter_init(&from, WRITE, &iov, 1, count); + total = p9_client_write(fid, origin, &from, &err); if (invalidate && (total > 0)) { + loff_t i_size; + unsigned long pg_start, pg_end; pg_start = origin >> PAGE_CACHE_SHIFT; pg_end = (origin + total - 1) >> PAGE_CACHE_SHIFT; if (inode->i_mapping && inode->i_mapping->nrpages) @@ -487,10 +484,7 @@ v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid, i_size_write(inode, *offset); } } - if (n < 0) - return n; - - return total; + return total ? total : err; } /** diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c index f95e01e058e4..d4cab07f668d 100644 --- a/fs/9p/xattr.c +++ b/fs/9p/xattr.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -120,8 +121,11 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name, int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name, const void *value, size_t value_len, int flags) { - u64 offset = 0; - int retval, msize, write_count; + struct kvec kvec = {.iov_base = (void *)value, .iov_len = value_len}; + struct iov_iter from; + int retval; + + iov_iter_kvec(&from, WRITE | ITER_KVEC, &kvec, 1, value_len); p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu flags = %d\n", name, value_len, flags); @@ -135,29 +139,11 @@ int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name, * On success fid points to xattr */ retval = p9_client_xattrcreate(fid, name, value_len, flags); - if (retval < 0) { + if (retval < 0) p9_debug(P9_DEBUG_VFS, "p9_client_xattrcreate failed %d\n", retval); - goto err; - } - msize = fid->clnt->msize; - while (value_len) { - if (value_len > (msize - P9_IOHDRSZ)) - write_count = msize - P9_IOHDRSZ; - else - write_count = value_len; - write_count = p9_client_write(fid, ((char *)value)+offset, - NULL, offset, write_count); - if (write_count < 0) { - /* error in xattr write */ - retval = write_count; - goto err; - } - offset += write_count; - value_len -= write_count; - } - retval = 0; -err: + else + p9_client_write(fid, 0, &from, &retval); p9_client_clunk(fid); return retval; } diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 6fab66c5c5af..63ae7653389d 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -211,6 +211,8 @@ struct p9_dirent { char d_name[256]; }; +struct iov_iter; + int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb); int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid, const char *name); @@ -238,8 +240,7 @@ int p9_client_remove(struct p9_fid *fid); int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags); int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count); -int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, - u64 offset, u32 count); +int p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err); int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset); int p9dirent_read(struct p9_client *clnt, char *buf, int len, struct p9_dirent *dirent); diff --git a/net/9p/client.c b/net/9p/client.c index 9ef5d85f082f..aa38cfeb8615 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1611,69 +1611,53 @@ error: EXPORT_SYMBOL(p9_client_read); int -p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, - u64 offset, u32 count) +p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err) { - int err, rsize; - struct p9_client *clnt; + struct p9_client *clnt = fid->clnt; struct p9_req_t *req; - struct iov_iter from; - union { - struct kvec kv; - struct iovec iov; - } v; - - if (data) { - v.kv.iov_base = data; - v.kv.iov_len = count; - iov_iter_kvec(&from, ITER_KVEC | WRITE, &v.kv, 1, count); - } else { - v.iov.iov_base = udata; - v.iov.iov_len = count; - iov_iter_init(&from, WRITE, &v.iov, 1, count); - } - - p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %d\n", - fid->fid, (unsigned long long) offset, count); - err = 0; - clnt = fid->clnt; - - rsize = fid->iounit; - if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) - rsize = clnt->msize - P9_IOHDRSZ; + int total = 0; + + p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %zd\n", + fid->fid, (unsigned long long) offset, + iov_iter_count(from)); + + while (iov_iter_count(from)) { + int count = iov_iter_count(from); + int rsize = fid->iounit; + if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) + rsize = clnt->msize - P9_IOHDRSZ; + + if (count < rsize) + rsize = count; + + /* Don't bother zerocopy for small IO (< 1024) */ + if (clnt->trans_mod->zc_request && rsize > 1024) { + req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, from, 0, + rsize, P9_ZC_HDR_SZ, "dqd", + fid->fid, offset, rsize); + } else { + req = p9_client_rpc(clnt, P9_TWRITE, "dqV", fid->fid, + offset, rsize, from); + } + if (IS_ERR(req)) { + *err = PTR_ERR(req); + break; + } - if (count < rsize) - rsize = count; + *err = p9pdu_readf(req->rc, clnt->proto_version, "d", &count); + if (*err) { + trace_9p_protocol_dump(clnt, req->rc); + p9_free_req(clnt, req); + } - /* Don't bother zerocopy for small IO (< 1024) */ - if (clnt->trans_mod->zc_request && rsize > 1024) { - req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, &from, 0, rsize, - P9_ZC_HDR_SZ, "dqd", - fid->fid, offset, rsize); - } else { - req = p9_client_rpc(clnt, P9_TWRITE, "dqV", fid->fid, - offset, rsize, &from); - } - if (IS_ERR(req)) { - err = PTR_ERR(req); - goto error; - } + p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count); - err = p9pdu_readf(req->rc, clnt->proto_version, "d", &count); - if (err) { - trace_9p_protocol_dump(clnt, req->rc); - goto free_and_error; + p9_free_req(clnt, req); + iov_iter_advance(from, count); + total += count; + offset += count; } - - p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count); - - p9_free_req(clnt, req); - return count; - -free_and_error: - p9_free_req(clnt, req); -error: - return err; + return total; } EXPORT_SYMBOL(p9_client_write); -- cgit v1.2.3-70-g09d2 From e1200fe68f20759f359698f8a8dc81d06d1265f5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 1 Apr 2015 23:42:28 -0400 Subject: 9p: switch p9_client_read() to passing struct iov_iter * ... and make it loop Signed-off-by: Al Viro --- fs/9p/v9fs_vfs.h | 2 - fs/9p/vfs_addr.c | 20 ++++---- fs/9p/vfs_dir.c | 15 ++++-- fs/9p/vfs_file.c | 79 ++++-------------------------- fs/9p/xattr.c | 48 +++++++------------ include/net/9p/client.h | 3 +- net/9p/client.c | 124 ++++++++++++++++++++++++------------------------ 7 files changed, 108 insertions(+), 183 deletions(-) (limited to 'net') diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h index cff1e61d9355..5a0db6dec8d1 100644 --- a/fs/9p/v9fs_vfs.h +++ b/fs/9p/v9fs_vfs.h @@ -68,8 +68,6 @@ int v9fs_file_open(struct inode *inode, struct file *file); void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat); int v9fs_uflags2omode(int uflags, int extended); -ssize_t v9fs_file_readn(struct file *, char *, char __user *, u32, u64); -ssize_t v9fs_fid_readn(struct p9_fid *, char *, char __user *, u32, u64); void v9fs_blank_wstat(struct p9_wstat *wstat); int v9fs_vfs_setattr_dotl(struct dentry *, struct iattr *); int v9fs_file_fsync_dotl(struct file *filp, loff_t start, loff_t end, diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c index 402269c108cd..afe3225aaf36 100644 --- a/fs/9p/vfs_addr.c +++ b/fs/9p/vfs_addr.c @@ -51,12 +51,11 @@ */ static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page) { - int retval; - loff_t offset; - char *buffer; - struct inode *inode; + struct inode *inode = page->mapping->host; + struct bio_vec bvec = {.bv_page = page, .bv_len = PAGE_SIZE}; + struct iov_iter to; + int retval, err; - inode = page->mapping->host; p9_debug(P9_DEBUG_VFS, "\n"); BUG_ON(!PageLocked(page)); @@ -65,16 +64,16 @@ static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page) if (retval == 0) return retval; - buffer = kmap(page); - offset = page_offset(page); + iov_iter_bvec(&to, ITER_BVEC | READ, &bvec, 1, PAGE_SIZE); - retval = v9fs_fid_readn(fid, buffer, NULL, PAGE_CACHE_SIZE, offset); - if (retval < 0) { + retval = p9_client_read(fid, page_offset(page), &to, &err); + if (err) { v9fs_uncache_page(inode, page); + retval = err; goto done; } - memset(buffer + retval, 0, PAGE_CACHE_SIZE - retval); + zero_user(page, retval, PAGE_SIZE - retval); flush_dcache_page(page); SetPageUptodate(page); @@ -82,7 +81,6 @@ static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page) retval = 0; done: - kunmap(page); unlock_page(page); return retval; } diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index 4f1151088ebe..76c3b1ab6361 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -115,6 +116,7 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx) int buflen; int reclen = 0; struct p9_rdir *rdir; + struct kvec kvec; p9_debug(P9_DEBUG_VFS, "name %pD\n", file); fid = file->private_data; @@ -124,16 +126,21 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx) rdir = v9fs_alloc_rdir_buf(file, buflen); if (!rdir) return -ENOMEM; + kvec.iov_base = rdir->buf; + kvec.iov_len = buflen; while (1) { if (rdir->tail == rdir->head) { - err = v9fs_file_readn(file, rdir->buf, NULL, - buflen, ctx->pos); - if (err <= 0) + struct iov_iter to; + int n; + iov_iter_kvec(&to, READ | ITER_KVEC, &kvec, 1, buflen); + n = p9_client_read(file->private_data, ctx->pos, &to, + &err); + if (err) return err; rdir->head = 0; - rdir->tail = err; + rdir->tail = n; } while (rdir->head < rdir->tail) { p9stat_init(&st); diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 1e4619693721..069f70d3758f 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -364,63 +364,6 @@ out_err: return ret; } -/** - * v9fs_fid_readn - read from a fid - * @fid: fid to read - * @data: data buffer to read data into - * @udata: user data buffer to read data into - * @count: size of buffer - * @offset: offset at which to read data - * - */ -ssize_t -v9fs_fid_readn(struct p9_fid *fid, char *data, char __user *udata, u32 count, - u64 offset) -{ - int n, total, size; - - p9_debug(P9_DEBUG_VFS, "fid %d offset %llu count %d\n", - fid->fid, (long long unsigned)offset, count); - n = 0; - total = 0; - size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ; - do { - n = p9_client_read(fid, data, udata, offset, count); - if (n <= 0) - break; - - if (data) - data += n; - if (udata) - udata += n; - - offset += n; - count -= n; - total += n; - } while (count > 0 && n == size); - - if (n < 0) - total = n; - - return total; -} - -/** - * v9fs_file_readn - read from a file - * @filp: file pointer to read - * @data: data buffer to read data into - * @udata: user data buffer to read data into - * @count: size of buffer - * @offset: offset at which to read data - * - */ -ssize_t -v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count, - u64 offset) -{ - return v9fs_fid_readn(filp->private_data, data, udata, count, offset); -} - /** * v9fs_file_read - read from a file * @filp: file pointer to read @@ -434,22 +377,20 @@ static ssize_t v9fs_file_read(struct file *filp, char __user *udata, size_t count, loff_t * offset) { - int ret; - struct p9_fid *fid; - size_t size; + struct p9_fid *fid = filp->private_data; + struct iovec iov = {.iov_base = udata, .iov_len = count}; + struct iov_iter to; + int ret, err; - p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset); - fid = filp->private_data; + iov_iter_init(&to, READ, &iov, 1, count); - size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ; - if (count > size) - ret = v9fs_file_readn(filp, NULL, udata, count, *offset); - else - ret = p9_client_read(fid, NULL, udata, *offset, count); + p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset); - if (ret > 0) - *offset += ret; + ret = p9_client_read(fid, *offset, &to, &err); + if (!ret) + return err; + *offset += ret; return ret; } diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c index d4cab07f668d..0cf44b6cccd6 100644 --- a/fs/9p/xattr.c +++ b/fs/9p/xattr.c @@ -26,50 +26,34 @@ ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name, void *buffer, size_t buffer_size) { ssize_t retval; - int msize, read_count; - u64 offset = 0, attr_size; + u64 attr_size; struct p9_fid *attr_fid; + struct kvec kvec = {.iov_base = buffer, .iov_len = buffer_size}; + struct iov_iter to; + int err; + + iov_iter_kvec(&to, READ | ITER_KVEC, &kvec, 1, buffer_size); attr_fid = p9_client_xattrwalk(fid, name, &attr_size); if (IS_ERR(attr_fid)) { retval = PTR_ERR(attr_fid); p9_debug(P9_DEBUG_VFS, "p9_client_attrwalk failed %zd\n", retval); - attr_fid = NULL; - goto error; - } - if (!buffer_size) { - /* request to get the attr_size */ - retval = attr_size; - goto error; + return retval; } if (attr_size > buffer_size) { - retval = -ERANGE; - goto error; - } - msize = attr_fid->clnt->msize; - while (attr_size) { - if (attr_size > (msize - P9_IOHDRSZ)) - read_count = msize - P9_IOHDRSZ; + if (!buffer_size) /* request to get the attr_size */ + retval = attr_size; else - read_count = attr_size; - read_count = p9_client_read(attr_fid, ((char *)buffer)+offset, - NULL, offset, read_count); - if (read_count < 0) { - /* error in xattr read */ - retval = read_count; - goto error; - } - offset += read_count; - attr_size -= read_count; + retval = -ERANGE; + } else { + iov_iter_truncate(&to, attr_size); + retval = p9_client_read(attr_fid, 0, &to, &err); + if (err) + retval = err; } - /* Total read xattr bytes */ - retval = offset; -error: - if (attr_fid) - p9_client_clunk(attr_fid); + p9_client_clunk(attr_fid); return retval; - } diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 63ae7653389d..c6b97e58cf84 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -238,8 +238,7 @@ int p9_client_clunk(struct p9_fid *fid); int p9_client_fsync(struct p9_fid *fid, int datasync); int p9_client_remove(struct p9_fid *fid); int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags); -int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, - u64 offset, u32 count); +int p9_client_read(struct p9_fid *fid, u64 offset, struct iov_iter *to, int *err); int p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err); int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset); int p9dirent_read(struct p9_client *clnt, char *buf, int len, diff --git a/net/9p/client.c b/net/9p/client.c index aa38cfeb8615..18583bb89db6 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1534,79 +1534,77 @@ error: EXPORT_SYMBOL(p9_client_unlinkat); int -p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, - u32 count) +p9_client_read(struct p9_fid *fid, u64 offset, struct iov_iter *to, int *err) { - char *dataptr; + struct p9_client *clnt = fid->clnt; struct p9_req_t *req; - struct p9_client *clnt; - int err, rsize, non_zc = 0; - struct iov_iter to; - union { - struct kvec kv; - struct iovec iov; - } v; - - if (data) { - v.kv.iov_base = data; - v.kv.iov_len = count; - iov_iter_kvec(&to, ITER_KVEC | READ, &v.kv, 1, count); - } else { - v.iov.iov_base = udata; - v.iov.iov_len = count; - iov_iter_init(&to, READ, &v.iov, 1, count); - } + int total = 0; p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d\n", - fid->fid, (unsigned long long) offset, count); - err = 0; - clnt = fid->clnt; - - rsize = fid->iounit; - if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) - rsize = clnt->msize - P9_IOHDRSZ; + fid->fid, (unsigned long long) offset, (int)iov_iter_count(to)); + + while (iov_iter_count(to)) { + int count = iov_iter_count(to); + int rsize, non_zc = 0; + char *dataptr; + + rsize = fid->iounit; + if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) + rsize = clnt->msize - P9_IOHDRSZ; - if (count < rsize) - rsize = count; + if (count < rsize) + rsize = count; - /* Don't bother zerocopy for small IO (< 1024) */ - if (clnt->trans_mod->zc_request && rsize > 1024) { - /* - * response header len is 11 - * PDU Header(7) + IO Size (4) - */ - req = p9_client_zc_rpc(clnt, P9_TREAD, &to, NULL, rsize, 0, - 11, "dqd", fid->fid, - offset, rsize); - } else { - non_zc = 1; - req = p9_client_rpc(clnt, P9_TREAD, "dqd", fid->fid, offset, - rsize); - } - if (IS_ERR(req)) { - err = PTR_ERR(req); - goto error; - } + /* Don't bother zerocopy for small IO (< 1024) */ + if (clnt->trans_mod->zc_request && rsize > 1024) { + /* + * response header len is 11 + * PDU Header(7) + IO Size (4) + */ + req = p9_client_zc_rpc(clnt, P9_TREAD, to, NULL, rsize, + 0, 11, "dqd", fid->fid, + offset, rsize); + } else { + non_zc = 1; + req = p9_client_rpc(clnt, P9_TREAD, "dqd", fid->fid, offset, + rsize); + } + if (IS_ERR(req)) { + *err = PTR_ERR(req); + break; + } - err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr); - if (err) { - trace_9p_protocol_dump(clnt, req->rc); - goto free_and_error; - } + *err = p9pdu_readf(req->rc, clnt->proto_version, + "D", &count, &dataptr); + if (*err) { + trace_9p_protocol_dump(clnt, req->rc); + p9_free_req(clnt, req); + break; + } - p9_debug(P9_DEBUG_9P, "<<< RREAD count %d\n", count); + p9_debug(P9_DEBUG_9P, "<<< RREAD count %d\n", count); + if (!count) { + p9_free_req(clnt, req); + break; + } - if (non_zc && copy_to_iter(dataptr, count, &to) != count) { - err = -EFAULT; - goto free_and_error; + if (non_zc) { + int n = copy_to_iter(dataptr, count, to); + total += n; + offset += n; + if (n != count) { + *err = -EFAULT; + p9_free_req(clnt, req); + break; + } + } else { + iov_iter_advance(to, count); + total += count; + offset += count; + } + p9_free_req(clnt, req); } - p9_free_req(clnt, req); - return count; - -free_and_error: - p9_free_req(clnt, req); -error: - return err; + return total; } EXPORT_SYMBOL(p9_client_read); -- cgit v1.2.3-70-g09d2 From 21c9f5ccb103868c730aec6f8548e144ec397fed Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 2 Apr 2015 21:47:49 -0400 Subject: p9_client_attach(): set fid->uid correctly it's almost always equal to current_fsuid(), but there's an exception - if the first writeback fid is opened by non-root *and* that happens before root has done any lookups in /, we end up doing attach for root. The current code leaves the resulting FID owned by root from the server POV and by non-root from the client one. Unfortunately, it means that e.g. massive dcache eviction will leave that user buggered - they'll end up redoing walks from / *and* picking that FID every time. As soon as they try to create something, the things will get nasty. Signed-off-by: Al Viro --- net/9p/client.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net') diff --git a/net/9p/client.c b/net/9p/client.c index 18583bb89db6..6f4c4c88db84 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1116,6 +1116,7 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid, fid = NULL; goto error; } + fid->uid = n_uname; req = p9_client_rpc(clnt, P9_TATTACH, "ddss?u", fid->fid, afid ? afid->fid : P9_NOFID, uname, aname, n_uname); -- cgit v1.2.3-70-g09d2 From dcdbd7b269003bec7d729ca3fd143f93cf98f56e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 2 Apr 2015 23:11:36 -0400 Subject: net/9p: remove (now-)unused helpers Signed-off-by: Al Viro --- net/9p/trans_common.c | 42 +----------------------------------------- net/9p/trans_common.h | 2 -- 2 files changed, 1 insertion(+), 43 deletions(-) (limited to 'net') diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c index 2ee3879161b1..38aa6345bdfa 100644 --- a/net/9p/trans_common.c +++ b/net/9p/trans_common.c @@ -12,12 +12,8 @@ * */ -#include +#include #include -#include -#include -#include -#include "trans_common.h" /** * p9_release_req_pages - Release pages after the transaction. @@ -31,39 +27,3 @@ void p9_release_pages(struct page **pages, int nr_pages) put_page(pages[i]); } EXPORT_SYMBOL(p9_release_pages); - -/** - * p9_nr_pages - Return number of pages needed to accommodate the payload. - */ -int p9_nr_pages(char *data, int len) -{ - unsigned long start_page, end_page; - start_page = (unsigned long)data >> PAGE_SHIFT; - end_page = ((unsigned long)data + len + PAGE_SIZE - 1) >> PAGE_SHIFT; - return end_page - start_page; -} -EXPORT_SYMBOL(p9_nr_pages); - -/** - * payload_gup - Translates user buffer into kernel pages and - * pins them either for read/write through get_user_pages_fast(). - * @req: Request to be sent to server. - * @pdata_off: data offset into the first page after translation (gup). - * @pdata_len: Total length of the IO. gup may not return requested # of pages. - * @nr_pages: number of pages to accommodate the payload - * @rw: Indicates if the pages are for read or write. - */ - -int p9_payload_gup(char *data, int *nr_pages, struct page **pages, int write) -{ - int nr_mapped_pages; - - nr_mapped_pages = get_user_pages_fast((unsigned long)data, - *nr_pages, write, pages); - if (nr_mapped_pages <= 0) - return nr_mapped_pages; - - *nr_pages = nr_mapped_pages; - return 0; -} -EXPORT_SYMBOL(p9_payload_gup); diff --git a/net/9p/trans_common.h b/net/9p/trans_common.h index 173bb550a9eb..c43babb3f635 100644 --- a/net/9p/trans_common.h +++ b/net/9p/trans_common.h @@ -13,5 +13,3 @@ */ void p9_release_pages(struct page **, int); -int p9_payload_gup(char *, int *, struct page **, int); -int p9_nr_pages(char *, int); -- cgit v1.2.3-70-g09d2 From 5d5d568975307877e9195f5305f4240e506a2807 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 3 Apr 2015 15:41:18 -0400 Subject: make new_sync_{read,write}() static All places outside of core VFS that checked ->read and ->write for being NULL or called the methods directly are gone now, so NULL {read,write} with non-NULL {read,write}_iter will do the right thing in all cases. Signed-off-by: Al Viro --- Documentation/filesystems/porting | 9 +++++++++ arch/s390/hypfs/inode.c | 2 -- drivers/char/mem.c | 2 -- drivers/char/raw.c | 2 -- drivers/net/macvtap.c | 2 -- drivers/net/tun.c | 2 -- drivers/staging/lustre/lustre/llite/file.c | 6 ------ drivers/usb/gadget/function/f_fs.c | 2 -- drivers/usb/gadget/legacy/inode.c | 2 -- fs/9p/vfs_file.c | 12 ------------ fs/adfs/file.c | 2 -- fs/affs/file.c | 2 -- fs/afs/file.c | 2 -- fs/bfs/file.c | 2 -- fs/block_dev.c | 2 -- fs/btrfs/file.c | 2 -- fs/ceph/file.c | 2 -- fs/cifs/cifsfs.c | 12 ------------ fs/coda/file.c | 2 -- fs/ecryptfs/file.c | 2 -- fs/exofs/file.c | 2 -- fs/ext2/file.c | 4 ---- fs/ext3/file.c | 2 -- fs/ext4/file.c | 4 ---- fs/f2fs/file.c | 2 -- fs/fat/file.c | 2 -- fs/fuse/cuse.c | 2 -- fs/fuse/file.c | 4 ---- fs/gfs2/file.c | 4 ---- fs/hfs/inode.c | 2 -- fs/hfsplus/inode.c | 2 -- fs/hostfs/hostfs_kern.c | 2 -- fs/hpfs/file.c | 2 -- fs/hugetlbfs/inode.c | 1 - fs/jffs2/file.c | 2 -- fs/jfs/file.c | 2 -- fs/logfs/file.c | 2 -- fs/minix/file.c | 2 -- fs/ncpfs/file.c | 2 -- fs/nfs/file.c | 2 -- fs/nfs/nfs4file.c | 2 -- fs/nilfs2/file.c | 2 -- fs/ntfs/file.c | 2 -- fs/ocfs2/file.c | 4 ---- fs/omfs/file.c | 2 -- fs/pipe.c | 2 -- fs/ramfs/file-mmu.c | 2 -- fs/ramfs/file-nommu.c | 2 -- fs/read_write.c | 9 ++------- fs/reiserfs/file.c | 2 -- fs/romfs/mmap-nommu.c | 1 - fs/sysv/file.c | 2 -- fs/ubifs/file.c | 2 -- fs/udf/file.c | 2 -- fs/ufs/file.c | 2 -- fs/xfs/xfs_file.c | 2 -- include/linux/fs.h | 2 -- mm/shmem.c | 2 -- net/socket.c | 2 -- 59 files changed, 11 insertions(+), 153 deletions(-) (limited to 'net') diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index fa2db081505e..4006483c275f 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -471,3 +471,12 @@ in your dentry operations instead. [mandatory] f_dentry is gone; use f_path.dentry, or, better yet, see if you can avoid it entirely. +-- +[mandatory] + never call ->read() and ->write() directly; use __vfs_{read,write} or + wrappers; instead of checking for ->write or ->read being NULL, look for + FMODE_CAN_{WRITE,READ} in file->f_mode. +-- +[mandatory] + do _not_ use new_sync_{read,write} for ->read/->write; leave it NULL + instead. diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index df7d8cbee377..3f5c799b7fb5 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -437,8 +437,6 @@ struct dentry *hypfs_create_str(struct dentry *dir, static const struct file_operations hypfs_file_ops = { .open = hypfs_open, .release = hypfs_release, - .read = new_sync_read, - .write = new_sync_write, .read_iter = hypfs_read_iter, .write_iter = hypfs_write_iter, .llseek = no_llseek, diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 9c4fd7a8e2e5..ad08400491ae 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -764,7 +764,6 @@ static const struct file_operations __maybe_unused port_fops = { static const struct file_operations zero_fops = { .llseek = zero_lseek, - .read = new_sync_read, .write = write_zero, .read_iter = read_iter_zero, .aio_write = aio_write_zero, @@ -776,7 +775,6 @@ static const struct file_operations zero_fops = { static const struct file_operations full_fops = { .llseek = full_lseek, - .read = new_sync_read, .read_iter = read_iter_zero, .write = write_full, }; diff --git a/drivers/char/raw.c b/drivers/char/raw.c index 6e29bf2db536..5fc291c6157e 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -282,9 +282,7 @@ static long raw_ctl_compat_ioctl(struct file *file, unsigned int cmd, #endif static const struct file_operations raw_fops = { - .read = new_sync_read, .read_iter = blkdev_read_iter, - .write = new_sync_write, .write_iter = blkdev_write_iter, .fsync = blkdev_fsync, .open = raw_open, diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 8362aef0c15e..9c91ff872485 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -1118,8 +1118,6 @@ static const struct file_operations macvtap_fops = { .owner = THIS_MODULE, .open = macvtap_open, .release = macvtap_release, - .read = new_sync_read, - .write = new_sync_write, .read_iter = macvtap_read_iter, .write_iter = macvtap_write_iter, .poll = macvtap_poll, diff --git a/drivers/net/tun.c b/drivers/net/tun.c index b96b94cee760..e470ae59d405 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2223,8 +2223,6 @@ static void tun_chr_show_fdinfo(struct seq_file *m, struct file *f) static const struct file_operations tun_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = tun_chr_read_iter, .write_iter = tun_chr_write_iter, .poll = tun_chr_poll, diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 5ebee6ca0a10..d73111ef949e 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -3128,9 +3128,7 @@ int ll_inode_permission(struct inode *inode, int mask) /* -o localflock - only provides locally consistent flock locks */ struct file_operations ll_file_operations = { - .read = new_sync_read, .read_iter = ll_file_read_iter, - .write = new_sync_write, .write_iter = ll_file_write_iter, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, @@ -3143,9 +3141,7 @@ struct file_operations ll_file_operations = { }; struct file_operations ll_file_operations_flock = { - .read = new_sync_read, .read_iter = ll_file_read_iter, - .write = new_sync_write, .write_iter = ll_file_write_iter, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, @@ -3161,9 +3157,7 @@ struct file_operations ll_file_operations_flock = { /* These are for -o noflock - to return ENOSYS on flock calls */ struct file_operations ll_file_operations_noflock = { - .read = new_sync_read, .read_iter = ll_file_read_iter, - .write = new_sync_write, .write_iter = ll_file_write_iter, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index a12315a78248..6bdb57069044 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -1061,8 +1061,6 @@ static const struct file_operations ffs_epfile_operations = { .llseek = no_llseek, .open = ffs_epfile_open, - .write = new_sync_write, - .read = new_sync_read, .write_iter = ffs_epfile_write_iter, .read_iter = ffs_epfile_read_iter, .release = ffs_epfile_release, diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 662ef2c1c62b..6af58c6dba5e 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -699,8 +699,6 @@ static const struct file_operations ep_io_operations = { .open = ep_open, .release = ep_release, .llseek = no_llseek, - .read = new_sync_read, - .write = new_sync_write, .unlocked_ioctl = ep_ioctl, .read_iter = ep_read_iter, .write_iter = ep_write_iter, diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 55cc9c80e187..d7fcb775311e 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -641,8 +641,6 @@ static const struct vm_operations_struct v9fs_mmap_file_vm_ops = { const struct file_operations v9fs_cached_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .open = v9fs_file_open, @@ -654,8 +652,6 @@ const struct file_operations v9fs_cached_file_operations = { const struct file_operations v9fs_cached_file_operations_dotl = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .open = v9fs_file_open, @@ -668,8 +664,6 @@ const struct file_operations v9fs_cached_file_operations_dotl = { const struct file_operations v9fs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = v9fs_file_read_iter, .write_iter = v9fs_file_write_iter, .open = v9fs_file_open, @@ -681,8 +675,6 @@ const struct file_operations v9fs_file_operations = { const struct file_operations v9fs_file_operations_dotl = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = v9fs_file_read_iter, .write_iter = v9fs_file_write_iter, .open = v9fs_file_open, @@ -695,8 +687,6 @@ const struct file_operations v9fs_file_operations_dotl = { const struct file_operations v9fs_mmap_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = v9fs_mmap_file_read_iter, .write_iter = v9fs_mmap_file_write_iter, .open = v9fs_file_open, @@ -708,8 +698,6 @@ const struct file_operations v9fs_mmap_file_operations = { const struct file_operations v9fs_mmap_file_operations_dotl = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = v9fs_mmap_file_read_iter, .write_iter = v9fs_mmap_file_write_iter, .open = v9fs_file_open, diff --git a/fs/adfs/file.c b/fs/adfs/file.c index 07c9edce5aa7..46c0d5671cd5 100644 --- a/fs/adfs/file.c +++ b/fs/adfs/file.c @@ -23,11 +23,9 @@ const struct file_operations adfs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, .mmap = generic_file_mmap, .fsync = generic_file_fsync, - .write = new_sync_write, .write_iter = generic_file_write_iter, .splice_read = generic_file_splice_read, }; diff --git a/fs/affs/file.c b/fs/affs/file.c index 3aa7eb66547e..7c1a3d4c19c2 100644 --- a/fs/affs/file.c +++ b/fs/affs/file.c @@ -969,9 +969,7 @@ int affs_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync) } const struct file_operations affs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .open = affs_file_open, diff --git a/fs/afs/file.c b/fs/afs/file.c index 932ce07948b3..999bc3caec92 100644 --- a/fs/afs/file.c +++ b/fs/afs/file.c @@ -31,8 +31,6 @@ const struct file_operations afs_file_operations = { .open = afs_open, .release = afs_release, .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = afs_file_write, .mmap = generic_file_readonly_mmap, diff --git a/fs/bfs/file.c b/fs/bfs/file.c index e7f88ace1a25..97f1b5160155 100644 --- a/fs/bfs/file.c +++ b/fs/bfs/file.c @@ -23,9 +23,7 @@ const struct file_operations bfs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .splice_read = generic_file_splice_read, diff --git a/fs/block_dev.c b/fs/block_dev.c index 2e522aed6584..b5e87896f517 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1659,8 +1659,6 @@ const struct file_operations def_blk_fops = { .open = blkdev_open, .release = blkdev_close, .llseek = block_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = blkdev_read_iter, .write_iter = blkdev_write_iter, .mmap = generic_file_mmap, diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index aee18f84e315..cdc801c85105 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -2806,8 +2806,6 @@ out: const struct file_operations btrfs_file_operations = { .llseek = btrfs_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .splice_read = generic_file_splice_read, .write_iter = btrfs_file_write_iter, diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 139f2fea91a0..56237ea5fc22 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1331,8 +1331,6 @@ const struct file_operations ceph_file_fops = { .open = ceph_open, .release = ceph_release, .llseek = ceph_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = ceph_read_iter, .write_iter = ceph_write_iter, .mmap = ceph_mmap, diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index d72fe37f5420..eaab4b2a0595 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -906,8 +906,6 @@ const struct inode_operations cifs_symlink_inode_ops = { }; const struct file_operations cifs_file_ops = { - .read = new_sync_read, - .write = new_sync_write, .read_iter = cifs_loose_read_iter, .write_iter = cifs_file_write_iter, .open = cifs_open, @@ -926,8 +924,6 @@ const struct file_operations cifs_file_ops = { }; const struct file_operations cifs_file_strict_ops = { - .read = new_sync_read, - .write = new_sync_write, .read_iter = cifs_strict_readv, .write_iter = cifs_strict_writev, .open = cifs_open, @@ -947,8 +943,6 @@ const struct file_operations cifs_file_strict_ops = { const struct file_operations cifs_file_direct_ops = { /* BB reevaluate whether they can be done with directio, no cache */ - .read = new_sync_read, - .write = new_sync_write, .read_iter = cifs_user_readv, .write_iter = cifs_user_writev, .open = cifs_open, @@ -967,8 +961,6 @@ const struct file_operations cifs_file_direct_ops = { }; const struct file_operations cifs_file_nobrl_ops = { - .read = new_sync_read, - .write = new_sync_write, .read_iter = cifs_loose_read_iter, .write_iter = cifs_file_write_iter, .open = cifs_open, @@ -986,8 +978,6 @@ const struct file_operations cifs_file_nobrl_ops = { }; const struct file_operations cifs_file_strict_nobrl_ops = { - .read = new_sync_read, - .write = new_sync_write, .read_iter = cifs_strict_readv, .write_iter = cifs_strict_writev, .open = cifs_open, @@ -1006,8 +996,6 @@ const struct file_operations cifs_file_strict_nobrl_ops = { const struct file_operations cifs_file_direct_nobrl_ops = { /* BB reevaluate whether they can be done with directio, no cache */ - .read = new_sync_read, - .write = new_sync_write, .read_iter = cifs_user_readv, .write_iter = cifs_user_writev, .open = cifs_open, diff --git a/fs/coda/file.c b/fs/coda/file.c index d9f1d9a85e04..1da3805f3ddc 100644 --- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -219,8 +219,6 @@ int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync) const struct file_operations coda_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = coda_file_read_iter, .write_iter = coda_file_write_iter, .mmap = coda_file_mmap, diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 79675089443d..a65786e26b05 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -358,9 +358,7 @@ const struct file_operations ecryptfs_dir_fops = { const struct file_operations ecryptfs_main_fops = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = ecryptfs_read_update_atime, - .write = new_sync_write, .write_iter = generic_file_write_iter, .iterate = ecryptfs_readdir, .unlocked_ioctl = ecryptfs_unlocked_ioctl, diff --git a/fs/exofs/file.c b/fs/exofs/file.c index 1a376b42d305..906de66e8e7e 100644 --- a/fs/exofs/file.c +++ b/fs/exofs/file.c @@ -67,8 +67,6 @@ static int exofs_flush(struct file *file, fl_owner_t id) const struct file_operations exofs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, diff --git a/fs/ext2/file.c b/fs/ext2/file.c index e31701713516..ef04fdb57dbf 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -92,8 +92,6 @@ int ext2_fsync(struct file *file, loff_t start, loff_t end, int datasync) */ const struct file_operations ext2_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .unlocked_ioctl = ext2_ioctl, @@ -111,8 +109,6 @@ const struct file_operations ext2_file_operations = { #ifdef CONFIG_FS_DAX const struct file_operations ext2_dax_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .unlocked_ioctl = ext2_ioctl, diff --git a/fs/ext3/file.c b/fs/ext3/file.c index a062fa1e1b11..3b8f650de22c 100644 --- a/fs/ext3/file.c +++ b/fs/ext3/file.c @@ -50,8 +50,6 @@ static int ext3_release_file (struct inode * inode, struct file * filp) const struct file_operations ext3_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .unlocked_ioctl = ext3_ioctl, diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 598abbbe6786..9ad03036d9f5 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -607,8 +607,6 @@ loff_t ext4_llseek(struct file *file, loff_t offset, int whence) const struct file_operations ext4_file_operations = { .llseek = ext4_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = ext4_file_write_iter, .unlocked_ioctl = ext4_ioctl, @@ -627,8 +625,6 @@ const struct file_operations ext4_file_operations = { #ifdef CONFIG_FS_DAX const struct file_operations ext4_dax_file_operations = { .llseek = ext4_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = ext4_file_write_iter, .unlocked_ioctl = ext4_ioctl, diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 98dac27bc3f7..df6a0596eccf 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1104,8 +1104,6 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) const struct file_operations f2fs_file_operations = { .llseek = f2fs_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .open = generic_file_open, diff --git a/fs/fat/file.c b/fs/fat/file.c index 8429c68e3057..1e98d333879f 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -170,8 +170,6 @@ int fat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync) const struct file_operations fat_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index 644f05744993..e5bbf748b698 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -177,8 +177,6 @@ static long cuse_file_compat_ioctl(struct file *file, unsigned int cmd, static const struct file_operations cuse_frontend_fops = { .owner = THIS_MODULE, - .read = new_sync_read, - .write = new_sync_write, .read_iter = cuse_read_iter, .write_iter = cuse_write_iter, .open = cuse_open, diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 727e139e1fea..e1afdd7abf90 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2953,9 +2953,7 @@ out: static const struct file_operations fuse_file_operations = { .llseek = fuse_file_llseek, - .read = new_sync_read, .read_iter = fuse_file_read_iter, - .write = new_sync_write, .write_iter = fuse_file_write_iter, .mmap = fuse_file_mmap, .open = fuse_open, @@ -2973,9 +2971,7 @@ static const struct file_operations fuse_file_operations = { static const struct file_operations fuse_direct_io_file_operations = { .llseek = fuse_file_llseek, - .read = new_sync_read, .read_iter = fuse_direct_read_iter, - .write = new_sync_write, .write_iter = fuse_direct_write_iter, .mmap = fuse_direct_mmap, .open = fuse_open, diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index f6fc412b1100..614bb42cb7e1 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -1064,9 +1064,7 @@ static int gfs2_flock(struct file *file, int cmd, struct file_lock *fl) const struct file_operations gfs2_file_fops = { .llseek = gfs2_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = gfs2_file_write_iter, .unlocked_ioctl = gfs2_ioctl, .mmap = gfs2_mmap, @@ -1096,9 +1094,7 @@ const struct file_operations gfs2_dir_fops = { const struct file_operations gfs2_file_fops_nolock = { .llseek = gfs2_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = gfs2_file_write_iter, .unlocked_ioctl = gfs2_ioctl, .mmap = gfs2_mmap, diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 98d4ea45bb70..9337065bcc67 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -674,9 +674,7 @@ static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end, static const struct file_operations hfs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .splice_read = generic_file_splice_read, diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index f541196d4ee9..5f86cadb0542 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -341,9 +341,7 @@ static const struct inode_operations hfsplus_file_inode_operations = { static const struct file_operations hfsplus_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .splice_read = generic_file_splice_read, diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index fd62cae0fdcb..e021188ca110 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -378,11 +378,9 @@ static int hostfs_fsync(struct file *file, loff_t start, loff_t end, static const struct file_operations hostfs_file_fops = { .llseek = generic_file_llseek, - .read = new_sync_read, .splice_read = generic_file_splice_read, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, - .write = new_sync_write, .mmap = generic_file_mmap, .open = hostfs_file_open, .release = hostfs_file_release, diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c index 7f54e5f76cec..6d8cfe9b52d6 100644 --- a/fs/hpfs/file.c +++ b/fs/hpfs/file.c @@ -197,9 +197,7 @@ const struct address_space_operations hpfs_aops = { const struct file_operations hpfs_file_ops = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .release = hpfs_file_release, diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 5291c14ee6b8..8c2dad629e7c 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -696,7 +696,6 @@ static void init_once(void *foo) } const struct file_operations hugetlbfs_file_operations = { - .read = new_sync_read, .read_iter = hugetlbfs_read_iter, .mmap = hugetlbfs_file_mmap, .fsync = noop_fsync, diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c index 64989ca9ba90..f509f62e12f6 100644 --- a/fs/jffs2/file.c +++ b/fs/jffs2/file.c @@ -51,9 +51,7 @@ const struct file_operations jffs2_file_operations = { .llseek = generic_file_llseek, .open = generic_file_open, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .unlocked_ioctl=jffs2_ioctl, .mmap = generic_file_readonly_mmap, diff --git a/fs/jfs/file.c b/fs/jfs/file.c index 10815f8dfd8b..ae46788b9723 100644 --- a/fs/jfs/file.c +++ b/fs/jfs/file.c @@ -151,8 +151,6 @@ const struct inode_operations jfs_file_inode_operations = { const struct file_operations jfs_file_operations = { .open = jfs_open, .llseek = generic_file_llseek, - .write = new_sync_write, - .read = new_sync_read, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, diff --git a/fs/logfs/file.c b/fs/logfs/file.c index 8538752df2f6..b2c13f739ffa 100644 --- a/fs/logfs/file.c +++ b/fs/logfs/file.c @@ -271,8 +271,6 @@ const struct file_operations logfs_reg_fops = { .llseek = generic_file_llseek, .mmap = generic_file_readonly_mmap, .open = generic_file_open, - .read = new_sync_read, - .write = new_sync_write, }; const struct address_space_operations logfs_reg_aops = { diff --git a/fs/minix/file.c b/fs/minix/file.c index a967de085ac0..6d63e27ec961 100644 --- a/fs/minix/file.c +++ b/fs/minix/file.c @@ -14,9 +14,7 @@ */ const struct file_operations minix_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .fsync = generic_file_fsync, diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c index 5f9d5624e377..479bf8db264e 100644 --- a/fs/ncpfs/file.c +++ b/fs/ncpfs/file.c @@ -249,8 +249,6 @@ static int ncp_release(struct inode *inode, struct file *file) { const struct file_operations ncp_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = ncp_file_read_iter, .write_iter = ncp_file_write_iter, .unlocked_ioctl = ncp_ioctl, diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 37b15582e0de..f6a3adedf027 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -926,8 +926,6 @@ EXPORT_SYMBOL_GPL(nfs_flock); const struct file_operations nfs_file_operations = { .llseek = nfs_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = nfs_file_read, .write_iter = nfs_file_write, .mmap = nfs_file_mmap, diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 8b46389c4c5b..0181cde1d102 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -170,8 +170,6 @@ const struct file_operations nfs4_file_operations = { #else .llseek = nfs_file_llseek, #endif - .read = new_sync_read, - .write = new_sync_write, .read_iter = nfs_file_read, .write_iter = nfs_file_write, .mmap = nfs_file_mmap, diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c index a8c728acb7a8..54575e3cc1a2 100644 --- a/fs/nilfs2/file.c +++ b/fs/nilfs2/file.c @@ -143,8 +143,6 @@ static int nilfs_file_mmap(struct file *file, struct vm_area_struct *vma) */ const struct file_operations nilfs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .unlocked_ioctl = nilfs_ioctl, diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index c1da78dad1af..840e95e3f1d2 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -2048,10 +2048,8 @@ static int ntfs_file_fsync(struct file *filp, loff_t start, loff_t end, const struct file_operations ntfs_file_ops = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, #ifdef NTFS_RW - .write = new_sync_write, .write_iter = ntfs_file_write_iter, .fsync = ntfs_file_fsync, #endif /* NTFS_RW */ diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 266845de2100..0a6ec7e6efd8 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2676,8 +2676,6 @@ const struct inode_operations ocfs2_special_file_iops = { */ const struct file_operations ocfs2_fops = { .llseek = ocfs2_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .mmap = ocfs2_mmap, .fsync = ocfs2_sync_file, .release = ocfs2_file_release, @@ -2724,8 +2722,6 @@ const struct file_operations ocfs2_dops = { */ const struct file_operations ocfs2_fops_no_plocks = { .llseek = ocfs2_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .mmap = ocfs2_mmap, .fsync = ocfs2_sync_file, .release = ocfs2_file_release, diff --git a/fs/omfs/file.c b/fs/omfs/file.c index 902e88527fce..f993be7f2156 100644 --- a/fs/omfs/file.c +++ b/fs/omfs/file.c @@ -337,8 +337,6 @@ static sector_t omfs_bmap(struct address_space *mapping, sector_t block) const struct file_operations omfs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, diff --git a/fs/pipe.c b/fs/pipe.c index 2d084f2d0b83..822da5b7cff0 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -946,9 +946,7 @@ err: const struct file_operations pipefifo_fops = { .open = fifo_open, .llseek = no_llseek, - .read = new_sync_read, .read_iter = pipe_read, - .write = new_sync_write, .write_iter = pipe_write, .poll = pipe_poll, .unlocked_ioctl = pipe_ioctl, diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c index 4f56de822d2f..183a212694bf 100644 --- a/fs/ramfs/file-mmu.c +++ b/fs/ramfs/file-mmu.c @@ -31,9 +31,7 @@ #include "internal.h" const struct file_operations ramfs_file_operations = { - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .fsync = noop_fsync, diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c index f6ab41b39612..0b38befa69f3 100644 --- a/fs/ramfs/file-nommu.c +++ b/fs/ramfs/file-nommu.c @@ -44,9 +44,7 @@ const struct file_operations ramfs_file_operations = { .mmap_capabilities = ramfs_mmap_capabilities, .mmap = ramfs_nommu_mmap, .get_unmapped_area = ramfs_nommu_get_unmapped_area, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .fsync = noop_fsync, .splice_read = generic_file_splice_read, diff --git a/fs/read_write.c b/fs/read_write.c index c75e6ef0952c..3ae8eee3b82a 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -28,7 +28,6 @@ typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *); const struct file_operations generic_ro_fops = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, .mmap = generic_file_readonly_mmap, .splice_read = generic_file_splice_read, @@ -428,7 +427,7 @@ ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *pp EXPORT_SYMBOL(do_sync_read); -ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos) +static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos) { struct iovec iov = { .iov_base = buf, .iov_len = len }; struct kiocb kiocb; @@ -445,8 +444,6 @@ ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *p return ret; } -EXPORT_SYMBOL(new_sync_read); - ssize_t __vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) { @@ -505,7 +502,7 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof EXPORT_SYMBOL(do_sync_write); -ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos) +static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos) { struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len }; struct kiocb kiocb; @@ -522,8 +519,6 @@ ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, lo return ret; } -EXPORT_SYMBOL(new_sync_write); - ssize_t __vfs_write(struct file *file, const char __user *p, size_t count, loff_t *pos) { diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index 751dd3f4346b..96a1bcf33db4 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -243,8 +243,6 @@ drop_write_lock: } const struct file_operations reiserfs_file_operations = { - .read = new_sync_read, - .write = new_sync_write, .unlocked_ioctl = reiserfs_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = reiserfs_compat_ioctl, diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c index 7da9e2153953..1118a0dc6b45 100644 --- a/fs/romfs/mmap-nommu.c +++ b/fs/romfs/mmap-nommu.c @@ -81,7 +81,6 @@ static unsigned romfs_mmap_capabilities(struct file *file) const struct file_operations romfs_ro_fops = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, .splice_read = generic_file_splice_read, .mmap = romfs_mmap, diff --git a/fs/sysv/file.c b/fs/sysv/file.c index b00811c75b24..a48e30410ad1 100644 --- a/fs/sysv/file.c +++ b/fs/sysv/file.c @@ -21,9 +21,7 @@ */ const struct file_operations sysv_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .fsync = generic_file_fsync, diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index c3d15fe83403..475b15635f11 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -1580,8 +1580,6 @@ const struct inode_operations ubifs_symlink_inode_operations = { const struct file_operations ubifs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = ubifs_write_iter, .mmap = ubifs_file_mmap, diff --git a/fs/udf/file.c b/fs/udf/file.c index 7f885cc8b0b7..74050bff64f4 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -240,12 +240,10 @@ static int udf_release_file(struct inode *inode, struct file *filp) } const struct file_operations udf_file_operations = { - .read = new_sync_read, .read_iter = generic_file_read_iter, .unlocked_ioctl = udf_ioctl, .open = generic_file_open, .mmap = generic_file_mmap, - .write = new_sync_write, .write_iter = udf_file_write_iter, .release = udf_release_file, .fsync = generic_file_fsync, diff --git a/fs/ufs/file.c b/fs/ufs/file.c index c84ec010a676..042ddbf110cc 100644 --- a/fs/ufs/file.c +++ b/fs/ufs/file.c @@ -35,9 +35,7 @@ const struct file_operations ufs_file_operations = { .llseek = generic_file_llseek, - .read = new_sync_read, .read_iter = generic_file_read_iter, - .write = new_sync_write, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .open = generic_file_open, diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index f44212fae653..44856c3b9617 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1386,8 +1386,6 @@ xfs_file_llseek( const struct file_operations xfs_file_operations = { .llseek = xfs_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = xfs_file_read_iter, .write_iter = xfs_file_write_iter, .splice_read = xfs_file_splice_read, diff --git a/include/linux/fs.h b/include/linux/fs.h index 4a1cb00bd805..cade1304d27b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2576,8 +2576,6 @@ extern ssize_t generic_file_direct_write(struct kiocb *, struct iov_iter *, loff extern ssize_t generic_perform_write(struct file *, struct iov_iter *, loff_t); extern ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos); extern ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos); -extern ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos); -extern ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos); ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos); ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos); diff --git a/mm/shmem.c b/mm/shmem.c index 80b360c7bcd1..1ea2400b5245 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3118,8 +3118,6 @@ static const struct file_operations shmem_file_operations = { .mmap = shmem_mmap, #ifdef CONFIG_TMPFS .llseek = shmem_file_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = shmem_file_read_iter, .write_iter = generic_file_write_iter, .fsync = noop_fsync, diff --git a/net/socket.c b/net/socket.c index 5b0126234606..3e33959f3ce5 100644 --- a/net/socket.c +++ b/net/socket.c @@ -140,8 +140,6 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos, static const struct file_operations socket_file_ops = { .owner = THIS_MODULE, .llseek = no_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = sock_read_iter, .write_iter = sock_write_iter, .poll = sock_poll, -- cgit v1.2.3-70-g09d2