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-rw-r--r--fs/afs/dir.c8
-rw-r--r--fs/afs/fsclient.c3
-rw-r--r--fs/afs/inode.c10
-rw-r--r--fs/afs/super.c74
-rw-r--r--fs/afs/write.c21
-rw-r--r--fs/buffer.c4
-rw-r--r--fs/cifs/cache.c6
-rw-r--r--fs/cifs/cifsfs.c33
-rw-r--r--fs/cifs/cifsfs.h2
-rw-r--r--fs/cifs/connect.c23
-rw-r--r--fs/cifs/fscache.c51
-rw-r--r--fs/exec.c2
-rw-r--r--fs/isofs/inode.c3
-rw-r--r--fs/namei.c28
-rw-r--r--fs/proc/namespaces.c9
-rw-r--r--fs/proc/root.c11
-rw-r--r--fs/sysfs/mount.c37
-rw-r--r--fs/sysfs/sysfs.h2
-rw-r--r--fs/ubifs/super.c137
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c50
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c75
-rw-r--r--fs/xfs/xfs_log.c11
23 files changed, 291 insertions, 311 deletions
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 20c106f24927..1b0b19550015 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -584,11 +584,11 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
success:
d_add(dentry, inode);
- _leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%llu }",
+ _leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%u }",
fid.vnode,
fid.unique,
dentry->d_inode->i_ino,
- (unsigned long long)dentry->d_inode->i_version);
+ dentry->d_inode->i_generation);
return NULL;
}
@@ -671,10 +671,10 @@ static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
* been deleted and replaced, and the original vnode ID has
* been reused */
if (fid.unique != vnode->fid.unique) {
- _debug("%s: file deleted (uq %u -> %u I:%llu)",
+ _debug("%s: file deleted (uq %u -> %u I:%u)",
dentry->d_name.name, fid.unique,
vnode->fid.unique,
- (unsigned long long)dentry->d_inode->i_version);
+ dentry->d_inode->i_generation);
spin_lock(&vnode->lock);
set_bit(AFS_VNODE_DELETED, &vnode->flags);
spin_unlock(&vnode->lock);
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 4bd0218473a9..346e3289abd7 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -89,7 +89,7 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
i_size_write(&vnode->vfs_inode, size);
vnode->vfs_inode.i_uid = status->owner;
vnode->vfs_inode.i_gid = status->group;
- vnode->vfs_inode.i_version = vnode->fid.unique;
+ vnode->vfs_inode.i_generation = vnode->fid.unique;
vnode->vfs_inode.i_nlink = status->nlink;
mode = vnode->vfs_inode.i_mode;
@@ -102,6 +102,7 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
vnode->vfs_inode.i_ctime.tv_sec = status->mtime_server;
vnode->vfs_inode.i_mtime = vnode->vfs_inode.i_ctime;
vnode->vfs_inode.i_atime = vnode->vfs_inode.i_ctime;
+ vnode->vfs_inode.i_version = data_version;
}
expected_version = status->data_version;
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index db66c5201474..0fdab6e03d87 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -75,7 +75,8 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
inode->i_ctime.tv_nsec = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime;
inode->i_blocks = 0;
- inode->i_version = vnode->fid.unique;
+ inode->i_generation = vnode->fid.unique;
+ inode->i_version = vnode->status.data_version;
inode->i_mapping->a_ops = &afs_fs_aops;
/* check to see whether a symbolic link is really a mountpoint */
@@ -100,7 +101,7 @@ static int afs_iget5_test(struct inode *inode, void *opaque)
struct afs_iget_data *data = opaque;
return inode->i_ino == data->fid.vnode &&
- inode->i_version == data->fid.unique;
+ inode->i_generation == data->fid.unique;
}
/*
@@ -122,7 +123,7 @@ static int afs_iget5_set(struct inode *inode, void *opaque)
struct afs_vnode *vnode = AFS_FS_I(inode);
inode->i_ino = data->fid.vnode;
- inode->i_version = data->fid.unique;
+ inode->i_generation = data->fid.unique;
vnode->fid = data->fid;
vnode->volume = data->volume;
@@ -380,8 +381,7 @@ int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
inode = dentry->d_inode;
- _enter("{ ino=%lu v=%llu }", inode->i_ino,
- (unsigned long long)inode->i_version);
+ _enter("{ ino=%lu v=%u }", inode->i_ino, inode->i_generation);
generic_fillattr(inode, stat);
return 0;
diff --git a/fs/afs/super.c b/fs/afs/super.c
index fb240e8766d6..356dcf0929e8 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -31,8 +31,8 @@
static void afs_i_init_once(void *foo);
static struct dentry *afs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data);
+static void afs_kill_super(struct super_block *sb);
static struct inode *afs_alloc_inode(struct super_block *sb);
-static void afs_put_super(struct super_block *sb);
static void afs_destroy_inode(struct inode *inode);
static int afs_statfs(struct dentry *dentry, struct kstatfs *buf);
@@ -40,7 +40,7 @@ struct file_system_type afs_fs_type = {
.owner = THIS_MODULE,
.name = "afs",
.mount = afs_mount,
- .kill_sb = kill_anon_super,
+ .kill_sb = afs_kill_super,
.fs_flags = 0,
};
@@ -50,7 +50,6 @@ static const struct super_operations afs_super_ops = {
.drop_inode = afs_drop_inode,
.destroy_inode = afs_destroy_inode,
.evict_inode = afs_evict_inode,
- .put_super = afs_put_super,
.show_options = generic_show_options,
};
@@ -282,19 +281,25 @@ static int afs_parse_device_name(struct afs_mount_params *params,
*/
static int afs_test_super(struct super_block *sb, void *data)
{
- struct afs_mount_params *params = data;
+ struct afs_super_info *as1 = data;
struct afs_super_info *as = sb->s_fs_info;
- return as->volume == params->volume;
+ return as->volume == as1->volume;
+}
+
+static int afs_set_super(struct super_block *sb, void *data)
+{
+ sb->s_fs_info = data;
+ return set_anon_super(sb, NULL);
}
/*
* fill in the superblock
*/
-static int afs_fill_super(struct super_block *sb, void *data)
+static int afs_fill_super(struct super_block *sb,
+ struct afs_mount_params *params)
{
- struct afs_mount_params *params = data;
- struct afs_super_info *as = NULL;
+ struct afs_super_info *as = sb->s_fs_info;
struct afs_fid fid;
struct dentry *root = NULL;
struct inode *inode = NULL;
@@ -302,23 +307,13 @@ static int afs_fill_super(struct super_block *sb, void *data)
_enter("");
- /* allocate a superblock info record */
- as = kzalloc(sizeof(struct afs_super_info), GFP_KERNEL);
- if (!as) {
- _leave(" = -ENOMEM");
- return -ENOMEM;
- }
-
- afs_get_volume(params->volume);
- as->volume = params->volume;
-
/* fill in the superblock */
sb->s_blocksize = PAGE_CACHE_SIZE;
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
sb->s_magic = AFS_FS_MAGIC;
sb->s_op = &afs_super_ops;
- sb->s_fs_info = as;
sb->s_bdi = &as->volume->bdi;
+ strlcpy(sb->s_id, as->volume->vlocation->vldb.name, sizeof(sb->s_id));
/* allocate the root inode and dentry */
fid.vid = as->volume->vid;
@@ -326,7 +321,7 @@ static int afs_fill_super(struct super_block *sb, void *data)
fid.unique = 1;
inode = afs_iget(sb, params->key, &fid, NULL, NULL);
if (IS_ERR(inode))
- goto error_inode;
+ return PTR_ERR(inode);
if (params->autocell)
set_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(inode)->flags);
@@ -342,16 +337,8 @@ static int afs_fill_super(struct super_block *sb, void *data)
_leave(" = 0");
return 0;
-error_inode:
- ret = PTR_ERR(inode);
- inode = NULL;
error:
iput(inode);
- afs_put_volume(as->volume);
- kfree(as);
-
- sb->s_fs_info = NULL;
-
_leave(" = %d", ret);
return ret;
}
@@ -367,6 +354,7 @@ static struct dentry *afs_mount(struct file_system_type *fs_type,
struct afs_volume *vol;
struct key *key;
char *new_opts = kstrdup(options, GFP_KERNEL);
+ struct afs_super_info *as;
int ret;
_enter(",,%s,%p", dev_name, options);
@@ -399,12 +387,22 @@ static struct dentry *afs_mount(struct file_system_type *fs_type,
ret = PTR_ERR(vol);
goto error;
}
- params.volume = vol;
+
+ /* allocate a superblock info record */
+ as = kzalloc(sizeof(struct afs_super_info), GFP_KERNEL);
+ if (!as) {
+ ret = -ENOMEM;
+ afs_put_volume(vol);
+ goto error;
+ }
+ as->volume = vol;
/* allocate a deviceless superblock */
- sb = sget(fs_type, afs_test_super, set_anon_super, &params);
+ sb = sget(fs_type, afs_test_super, afs_set_super, as);
if (IS_ERR(sb)) {
ret = PTR_ERR(sb);
+ afs_put_volume(vol);
+ kfree(as);
goto error;
}
@@ -422,16 +420,16 @@ static struct dentry *afs_mount(struct file_system_type *fs_type,
} else {
_debug("reuse");
ASSERTCMP(sb->s_flags, &, MS_ACTIVE);
+ afs_put_volume(vol);
+ kfree(as);
}
- afs_put_volume(params.volume);
afs_put_cell(params.cell);
kfree(new_opts);
_leave(" = 0 [%p]", sb);
return dget(sb->s_root);
error:
- afs_put_volume(params.volume);
afs_put_cell(params.cell);
key_put(params.key);
kfree(new_opts);
@@ -439,18 +437,12 @@ error:
return ERR_PTR(ret);
}
-/*
- * finish the unmounting process on the superblock
- */
-static void afs_put_super(struct super_block *sb)
+static void afs_kill_super(struct super_block *sb)
{
struct afs_super_info *as = sb->s_fs_info;
-
- _enter("");
-
+ kill_anon_super(sb);
afs_put_volume(as->volume);
-
- _leave("");
+ kfree(as);
}
/*
diff --git a/fs/afs/write.c b/fs/afs/write.c
index 789b3afb3423..b806285ff853 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -84,23 +84,21 @@ void afs_put_writeback(struct afs_writeback *wb)
* partly or wholly fill a page that's under preparation for writing
*/
static int afs_fill_page(struct afs_vnode *vnode, struct key *key,
- loff_t pos, unsigned len, struct page *page)
+ loff_t pos, struct page *page)
{
loff_t i_size;
- unsigned eof;
int ret;
+ int len;
- _enter(",,%llu,%u", (unsigned long long)pos, len);
-
- ASSERTCMP(len, <=, PAGE_CACHE_SIZE);
+ _enter(",,%llu", (unsigned long long)pos);
i_size = i_size_read(&vnode->vfs_inode);
- if (pos + len > i_size)
- eof = i_size;
+ if (pos + PAGE_CACHE_SIZE > i_size)
+ len = i_size - pos;
else
- eof = PAGE_CACHE_SIZE;
+ len = PAGE_CACHE_SIZE;
- ret = afs_vnode_fetch_data(vnode, key, 0, eof, page);
+ ret = afs_vnode_fetch_data(vnode, key, pos, len, page);
if (ret < 0) {
if (ret == -ENOENT) {
_debug("got NOENT from server"
@@ -153,9 +151,8 @@ int afs_write_begin(struct file *file, struct address_space *mapping,
*pagep = page;
/* page won't leak in error case: it eventually gets cleaned off LRU */
- if (!PageUptodate(page)) {
- _debug("not up to date");
- ret = afs_fill_page(vnode, key, pos, len, page);
+ if (!PageUptodate(page) && len != PAGE_CACHE_SIZE) {
+ ret = afs_fill_page(vnode, key, index << PAGE_CACHE_SHIFT, page);
if (ret < 0) {
kfree(candidate);
_leave(" = %d [prep]", ret);
diff --git a/fs/buffer.c b/fs/buffer.c
index 49c9aada0374..1a80b048ade8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1902,10 +1902,8 @@ int __block_write_begin(struct page *page, loff_t pos, unsigned len,
if (!buffer_uptodate(*wait_bh))
err = -EIO;
}
- if (unlikely(err)) {
+ if (unlikely(err))
page_zero_new_buffers(page, from, to);
- ClearPageUptodate(page);
- }
return err;
}
EXPORT_SYMBOL(__block_write_begin);
diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
index dd8584d35a14..545509c3313b 100644
--- a/fs/cifs/cache.c
+++ b/fs/cifs/cache.c
@@ -92,7 +92,7 @@ static uint16_t cifs_server_get_key(const void *cookie_netfs_data,
break;
default:
- cERROR(1, "CIFS: Unknown network family '%d'", sa->sa_family);
+ cERROR(1, "Unknown network family '%d'", sa->sa_family);
key_len = 0;
break;
}
@@ -152,7 +152,7 @@ static uint16_t cifs_super_get_key(const void *cookie_netfs_data, void *buffer,
sharename = extract_sharename(tcon->treeName);
if (IS_ERR(sharename)) {
- cFYI(1, "CIFS: couldn't extract sharename\n");
+ cFYI(1, "%s: couldn't extract sharename\n", __func__);
sharename = NULL;
return 0;
}
@@ -302,7 +302,7 @@ static void cifs_fscache_inode_now_uncached(void *cookie_netfs_data)
pagevec_init(&pvec, 0);
first = 0;
- cFYI(1, "cifs inode 0x%p now uncached", cifsi);
+ cFYI(1, "%s: cifs inode 0x%p now uncached", __func__, cifsi);
for (;;) {
nr_pages = pagevec_lookup(&pvec,
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 989442dcfb45..e9def996e383 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -352,6 +352,37 @@ cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
}
}
+static void
+cifs_show_security(struct seq_file *s, struct TCP_Server_Info *server)
+{
+ seq_printf(s, ",sec=");
+
+ switch (server->secType) {
+ case LANMAN:
+ seq_printf(s, "lanman");
+ break;
+ case NTLMv2:
+ seq_printf(s, "ntlmv2");
+ break;
+ case NTLM:
+ seq_printf(s, "ntlm");
+ break;
+ case Kerberos:
+ seq_printf(s, "krb5");
+ break;
+ case RawNTLMSSP:
+ seq_printf(s, "ntlmssp");
+ break;
+ default:
+ /* shouldn't ever happen */
+ seq_printf(s, "unknown");
+ break;
+ }
+
+ if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+ seq_printf(s, "i");
+}
+
/*
* cifs_show_options() is for displaying mount options in /proc/mounts.
* Not all settable options are displayed but most of the important
@@ -365,6 +396,8 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
struct sockaddr *srcaddr;
srcaddr = (struct sockaddr *)&tcon->ses->server->srcaddr;
+ cifs_show_security(s, tcon->ses->server);
+
seq_printf(s, ",unc=%s", tcon->treeName);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 64313f778ebf..0900e1658c96 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -129,5 +129,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* CIFS_NFSD_EXPORT */
-#define CIFS_VERSION "1.72"
+#define CIFS_VERSION "1.73"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index bb659eb73810..12cf72dd0c42 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -152,7 +152,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
mid_entry->callback(mid_entry);
}
- while (server->tcpStatus == CifsNeedReconnect) {
+ do {
try_to_freeze();
/* we should try only the port we connected to before */
@@ -167,7 +167,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
server->tcpStatus = CifsNeedNegotiate;
spin_unlock(&GlobalMid_Lock);
}
- }
+ } while (server->tcpStatus == CifsNeedReconnect);
return rc;
}
@@ -2149,7 +2149,10 @@ cifs_put_tlink(struct tcon_link *tlink)
}
static inline struct tcon_link *
-cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb);
+cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb)
+{
+ return cifs_sb->master_tlink;
+}
static int
compare_mount_options(struct super_block *sb, struct cifs_mnt_data *mnt_data)
@@ -3171,6 +3174,10 @@ out:
return rc;
}
+/*
+ * Issue a TREE_CONNECT request. Note that for IPC$ shares, that the tcon
+ * pointer may be NULL.
+ */
int
CIFSTCon(unsigned int xid, struct cifs_ses *ses,
const char *tree, struct cifs_tcon *tcon,
@@ -3205,7 +3212,7 @@ CIFSTCon(unsigned int xid, struct cifs_ses *ses,
pSMB->AndXCommand = 0xFF;
pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO);
bcc_ptr = &pSMB->Password[0];
- if ((ses->server->sec_mode) & SECMODE_USER) {
+ if (!tcon || (ses->server->sec_mode & SECMODE_USER)) {
pSMB->PasswordLength = cpu_to_le16(1); /* minimum */
*bcc_ptr = 0; /* password is null byte */
bcc_ptr++; /* skip password */
@@ -3371,7 +3378,7 @@ int cifs_negotiate_protocol(unsigned int xid, struct cifs_ses *ses)
}
if (rc == 0) {
spin_lock(&GlobalMid_Lock);
- if (server->tcpStatus != CifsExiting)
+ if (server->tcpStatus == CifsNeedNegotiate)
server->tcpStatus = CifsGood;
else
rc = -EHOSTDOWN;
@@ -3484,12 +3491,6 @@ out:
return tcon;
}
-static inline struct tcon_link *
-cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb)
-{
- return cifs_sb->master_tlink;
-}
-
struct cifs_tcon *
cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb)
{
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index d368a47ba5eb..816696621ec9 100644
--- a/fs/cifs/fscache.c
+++ b/fs/cifs/fscache.c
@@ -28,14 +28,14 @@ void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server)
server->fscache =
fscache_acquire_cookie(cifs_fscache_netfs.primary_index,
&cifs_fscache_server_index_def, server);
- cFYI(1, "CIFS: get client cookie (0x%p/0x%p)", server,
- server->fscache);
+ cFYI(1, "%s: (0x%p/0x%p)", __func__, server,
+ server->fscache);
}
void cifs_fscache_release_client_cookie(struct TCP_Server_Info *server)
{
- cFYI(1, "CIFS: release client cookie (0x%p/0x%p)", server,
- server->fscache);
+ cFYI(1, "%s: (0x%p/0x%p)", __func__, server,
+ server->fscache);
fscache_relinquish_cookie(server->fscache, 0);
server->fscache = NULL;
}
@@ -47,13 +47,13 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
tcon->fscache =
fscache_acquire_cookie(server->fscache,
&cifs_fscache_super_index_def, tcon);
- cFYI(1, "CIFS: get superblock cookie (0x%p/0x%p)",
- server->fscache, tcon->fscache);
+ cFYI(1, "%s: (0x%p/0x%p)", __func__, server->fscache,
+ tcon->fscache);
}
void cifs_fscache_release_super_cookie(struct cifs_tcon *tcon)
{
- cFYI(1, "CIFS: releasing superblock cookie (0x%p)", tcon->fscache);
+ cFYI(1, "%s: (0x%p)", __func__, tcon->fscache);
fscache_relinquish_cookie(tcon->fscache, 0);
tcon->fscache = NULL;
}
@@ -70,8 +70,8 @@ static void cifs_fscache_enable_inode_cookie(struct inode *inode)
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE) {
cifsi->fscache = fscache_acquire_cookie(tcon->fscache,
&cifs_fscache_inode_object_def, cifsi);
- cFYI(1, "CIFS: got FH cookie (0x%p/0x%p)", tcon->fscache,
- cifsi->fscache);
+ cFYI(1, "%s: got FH cookie (0x%p/0x%p)", __func__,
+ tcon->fscache, cifsi->fscache);
}
}
@@ -80,8 +80,7 @@ void cifs_fscache_release_inode_cookie(struct inode *inode)
struct cifsInodeInfo *cifsi = CIFS_I(inode);
if (cifsi->fscache) {
- cFYI(1, "CIFS releasing inode cookie (0x%p)",
- cifsi->fscache);
+ cFYI(1, "%s: (0x%p)", __func__, cifsi->fscache);
fscache_relinquish_cookie(cifsi->fscache, 0);
cifsi->fscache = NULL;
}
@@ -92,8 +91,7 @@ static void cifs_fscache_disable_inode_cookie(struct inode *inode)
struct cifsInodeInfo *cifsi = CIFS_I(inode);
if (cifsi->fscache) {
- cFYI(1, "CIFS disabling inode cookie (0x%p)",
- cifsi->fscache);
+ cFYI(1, "%s: (0x%p)", __func__, cifsi->fscache);
fscache_relinquish_cookie(cifsi->fscache, 1);
cifsi->fscache = NULL;
}
@@ -121,8 +119,8 @@ void cifs_fscache_reset_inode_cookie(struct inode *inode)
cifs_sb_master_tcon(cifs_sb)->fscache,
&cifs_fscache_inode_object_def,
cifsi);
- cFYI(1, "CIFS: new cookie 0x%p oldcookie 0x%p",
- cifsi->fscache, old);
+ cFYI(1, "%s: new cookie 0x%p oldcookie 0x%p",
+ __func__, cifsi->fscache, old);
}
}
@@ -132,8 +130,8 @@ int cifs_fscache_release_page(struct page *page, gfp_t gfp)
struct inode *inode = page->mapping->host;
struct cifsInodeInfo *cifsi = CIFS_I(inode);
- cFYI(1, "CIFS: fscache release page (0x%p/0x%p)",
- page, cifsi->fscache);
+ cFYI(1, "%s: (0x%p/0x%p)", __func__, page,
+ cifsi->fscache);
if (!fscache_maybe_release_page(cifsi->fscache, page, gfp))
return 0;
}
@@ -144,8 +142,7 @@ int cifs_fscache_release_page(struct page *page, gfp_t gfp)
static void cifs_readpage_from_fscache_complete(struct page *page, void *ctx,
int error)
{
- cFYI(1, "CFS: readpage_from_fscache_complete (0x%p/%d)",
- page, error);
+ cFYI(1, "%s: (0x%p/%d)", __func__, page, error);
if (!error)
SetPageUptodate(page);
unlock_page(page);
@@ -158,7 +155,7 @@ int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
{
int ret;
- cFYI(1, "CIFS: readpage_from_fscache(fsc:%p, p:%p, i:0x%p",
+ cFYI(1, "%s: (fsc:%p, p:%p, i:0x%p", __func__,
CIFS_I(inode)->fscache, page, inode);
ret = fscache_read_or_alloc_page(CIFS_I(inode)->fscache, page,
cifs_readpage_from_fscache_complete,
@@ -167,11 +164,11 @@ int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
switch (ret) {
case 0: /* page found in fscache, read submitted */
- cFYI(1, "CIFS: readpage_from_fscache: submitted");
+ cFYI(1, "%s: submitted", __func__);
return ret;
case -ENOBUFS: /* page won't be cached */
case -ENODATA: /* page not in cache */
- cFYI(1, "CIFS: readpage_from_fscache %d", ret);
+ cFYI(1, "%s: %d", __func__, ret);
return 1;
default:
@@ -190,7 +187,7 @@ int __cifs_readpages_from_fscache(struct inode *inode,
{
int ret;
- cFYI(1, "CIFS: __cifs_readpages_from_fscache (0x%p/%u/0x%p)",
+ cFYI(1, "%s: (0x%p/%u/0x%p)", __func__,
CIFS_I(inode)->fscache, *nr_pages, inode);
ret = fscache_read_or_alloc_pages(CIFS_I(inode)->fscache, mapping,
pages, nr_pages,
@@ -199,12 +196,12 @@ int __cifs_readpages_from_fscache(struct inode *inode,
mapping_gfp_mask(mapping));
switch (ret) {
case 0: /* read submitted to the cache for all pages */
- cFYI(1, "CIFS: readpages_from_fscache: submitted");
+ cFYI(1, "%s: submitted", __func__);
return ret;
case -ENOBUFS: /* some pages are not cached and can't be */
case -ENODATA: /* some pages are not cached */
- cFYI(1, "CIFS: readpages_from_fscache: no page");
+ cFYI(1, "%s: no page", __func__);
return 1;
default:
@@ -218,7 +215,7 @@ void __cifs_readpage_to_fscache(struct inode *inode, struct page *page)
{
int ret;
- cFYI(1, "CIFS: readpage_to_fscache(fsc: %p, p: %p, i: %p",
+ cFYI(1, "%s: (fsc: %p, p: %p, i: %p)", __func__,
CIFS_I(inode)->fscache, page, inode);
ret = fscache_write_page(CIFS_I(inode)->fscache, page, GFP_KERNEL);
if (ret != 0)
@@ -230,7 +227,7 @@ void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode)
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct fscache_cookie *cookie = cifsi->fscache;
- cFYI(1, "CIFS: fscache invalidatepage (0x%p/0x%p)", page, cookie);
+ cFYI(1, "%s: (0x%p/0x%p)", __func__, page, cookie);
fscache_wait_on_page_write(cookie, page);
fscache_uncache_page(cookie, page);
}
diff --git a/fs/exec.c b/fs/exec.c
index 97e0d52d72fd..6075a1e727ae 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1996,7 +1996,7 @@ static void wait_for_dump_helpers(struct file *file)
* is a special value that we use to trap recursive
* core dumps
*/
-static int umh_pipe_setup(struct subprocess_info *info)
+static int umh_pipe_setup(struct subprocess_info *info, struct cred *new)
{
struct file *rp, *wp;
struct fdtable *fdt;
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 3db5ba4568fc..b3cc8586984e 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -974,7 +974,7 @@ out_no_inode:
out_no_read:
printk(KERN_WARNING "%s: bread failed, dev=%s, iso_blknum=%d, block=%d\n",
__func__, s->s_id, iso_blknum, block);
- goto out_freesbi;
+ goto out_freebh;
out_bad_zone_size:
printk(KERN_WARNING "ISOFS: Bad logical zone size %ld\n",
sbi->s_log_zone_size);
@@ -989,6 +989,7 @@ out_unknown_format:
out_freebh:
brelse(bh);
+ brelse(pri_bh);
out_freesbi:
kfree(opt.iocharset);
kfree(sbi);
diff --git a/fs/namei.c b/fs/namei.c
index 9802345df5e7..9e425e7e6c8f 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -812,6 +812,11 @@ static int follow_automount(struct path *path, unsigned flags,
if (!mnt) /* mount collision */
return 0;
+ if (!*need_mntput) {
+ /* lock_mount() may release path->mnt on error */
+ mntget(path->mnt);
+ *need_mntput = true;
+ }
err = finish_automount(mnt, path);
switch (err) {
@@ -819,12 +824,9 @@ static int follow_automount(struct path *path, unsigned flags,
/* Someone else made a mount here whilst we were busy */
return 0;
case 0:
- dput(path->dentry);
- if (*need_mntput)
- mntput(path->mnt);
+ path_put(path);
path->mnt = mnt;
path->dentry = dget(mnt->mnt_root);
- *need_mntput = true;
return 0;
default:
return err;
@@ -844,9 +846,10 @@ static int follow_automount(struct path *path, unsigned flags,
*/
static int follow_managed(struct path *path, unsigned flags)
{
+ struct vfsmount *mnt = path->mnt; /* held by caller, must be left alone */
unsigned managed;
bool need_mntput = false;
- int ret;
+ int ret = 0;
/* Given that we're not holding a lock here, we retain the value in a
* local variable for each dentry as we look at it so that we don't see
@@ -861,7 +864,7 @@ static int follow_managed(struct path *path, unsigned flags)
BUG_ON(!path->dentry->d_op->d_manage);
ret = path->dentry->d_op->d_manage(path->dentry, false);
if (ret < 0)
- return ret == -EISDIR ? 0 : ret;
+ break;
}
/* Transit to a mounted filesystem. */
@@ -887,14 +890,19 @@ static int follow_managed(struct path *path, unsigned flags)
if (managed & DCACHE_NEED_AUTOMOUNT) {
ret = follow_automount(path, flags, &need_mntput);
if (ret < 0)
- return ret == -EISDIR ? 0 : ret;
+ break;
continue;
}
/* We didn't change the current path point */
break;
}
- return 0;
+
+ if (need_mntput && path->mnt == mnt)
+ mntput(path->mnt);
+ if (ret == -EISDIR)
+ ret = 0;
+ return ret;
}
int follow_down_one(struct path *path)
@@ -2713,8 +2721,10 @@ static long do_unlinkat(int dfd, const char __user *pathname)
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
/* Why not before? Because we want correct error value */
+ if (nd.last.name[nd.last.len])
+ goto slashes;
inode = dentry->d_inode;
- if (nd.last.name[nd.last.len] || !inode)
+ if (!inode)
goto slashes;
ihold(inode);
error = mnt_want_write(nd.path.mnt);
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index 781dec5bd682..be177f702acb 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -38,18 +38,21 @@ static struct dentry *proc_ns_instantiate(struct inode *dir,
struct inode *inode;
struct proc_inode *ei;
struct dentry *error = ERR_PTR(-ENOENT);
+ void *ns;
inode = proc_pid_make_inode(dir->i_sb, task);
if (!inode)
goto out;
+ ns = ns_ops->get(task);
+ if (!ns)
+ goto out_iput;
+
ei = PROC_I(inode);
inode->i_mode = S_IFREG|S_IRUSR;
inode->i_fop = &ns_file_operations;
ei->ns_ops = ns_ops;
- ei->ns = ns_ops->get(task);
- if (!ei->ns)
- goto out_iput;
+ ei->ns = ns;
dentry->d_op = &pid_dentry_operations;
d_add(dentry, inode);
diff --git a/fs/proc/root.c b/fs/proc/root.c
index a9000e9cfee5..d6c3b416529b 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -28,11 +28,12 @@ static int proc_test_super(struct super_block *sb, void *data)
static int proc_set_super(struct super_block *sb, void *data)
{
- struct pid_namespace *ns;
-
- ns = (struct pid_namespace *)data;
- sb->s_fs_info = get_pid_ns(ns);
- return set_anon_super(sb, NULL);
+ int err = set_anon_super(sb, NULL);
+ if (!err) {
+ struct pid_namespace *ns = (struct pid_namespace *)data;
+ sb->s_fs_info = get_pid_ns(ns);
+ }
+ return err;
}
static struct dentry *proc_mount(struct file_system_type *fs_type,
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 266895783b47..e34f0d99ea4e 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -95,6 +95,14 @@ static int sysfs_set_super(struct super_block *sb, void *data)
return error;
}
+static void free_sysfs_super_info(struct sysfs_super_info *info)
+{
+ int type;
+ for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
+ kobj_ns_drop(type, info->ns[type]);
+ kfree(info);
+}
+
static struct dentry *sysfs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
@@ -108,11 +116,11 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
return ERR_PTR(-ENOMEM);
for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
- info->ns[type] = kobj_ns_current(type);
+ info->ns[type] = kobj_ns_grab_current(type);
sb = sget(fs_type, sysfs_test_super, sysfs_set_super, info);
if (IS_ERR(sb) || sb->s_fs_info != info)
- kfree(info);
+ free_sysfs_super_info(info);
if (IS_ERR(sb))
return ERR_CAST(sb);
if (!sb->s_root) {
@@ -131,12 +139,11 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
static void sysfs_kill_sb(struct super_block *sb)
{
struct sysfs_super_info *info = sysfs_info(sb);
-
/* Remove the superblock from fs_supers/s_instances
* so we can't find it, before freeing sysfs_super_info.
*/
kill_anon_super(sb);
- kfree(info);
+ free_sysfs_super_info(info);
}
static struct file_system_type sysfs_fs_type = {
@@ -145,28 +152,6 @@ static struct file_system_type sysfs_fs_type = {
.kill_sb = sysfs_kill_sb,
};
-void sysfs_exit_ns(enum kobj_ns_type type, const void *ns)
-{
- struct super_block *sb;
-
- mutex_lock(&sysfs_mutex);
- spin_lock(&sb_lock);
- list_for_each_entry(sb, &sysfs_fs_type.fs_supers, s_instances) {
- struct sysfs_super_info *info = sysfs_info(sb);
- /*
- * If we see a superblock on the fs_supers/s_instances
- * list the unmount has not completed and sb->s_fs_info
- * points to a valid struct sysfs_super_info.
- */
- /* Ignore superblocks with the wrong ns */
- if (info->ns[type] != ns)
- continue;
- info->ns[type] = NULL;
- }
- spin_unlock(&sb_lock);
- mutex_unlock(&sysfs_mutex);
-}
-
int __init sysfs_init(void)
{
int err = -ENOMEM;
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 3d28af31d863..2ed2404f3113 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -136,7 +136,7 @@ struct sysfs_addrm_cxt {
* instance).
*/
struct sysfs_super_info {
- const void *ns[KOBJ_NS_TYPES];
+ void *ns[KOBJ_NS_TYPES];
};
#define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
extern struct sysfs_dirent sysfs_root;
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index b5aeb5a8ebed..8c892c2d5300 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1848,7 +1848,6 @@ static void ubifs_put_super(struct super_block *sb)
bdi_destroy(&c->bdi);
ubi_close_volume(c->ubi);
mutex_unlock(&c->umount_mutex);
- kfree(c);
}
static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
@@ -1971,61 +1970,65 @@ static struct ubi_volume_desc *open_ubi(const char *name, int mode)
return ERR_PTR(-EINVAL);
}
-static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
+static struct ubifs_info *alloc_ubifs_info(struct ubi_volume_desc *ubi)
{
- struct ubi_volume_desc *ubi = sb->s_fs_info;
struct ubifs_info *c;
- struct inode *root;
- int err;
c = kzalloc(sizeof(struct ubifs_info), GFP_KERNEL);
- if (!c)
- return -ENOMEM;
+ if (c) {
+ spin_lock_init(&c->cnt_lock);
+ spin_lock_init(&c->cs_lock);
+ spin_lock_init(&c->buds_lock);
+ spin_lock_init(&c->space_lock);
+ spin_lock_init(&c->orphan_lock);
+ init_rwsem(&c->commit_sem);
+ mutex_init(&c->lp_mutex);
+ mutex_init(&c->tnc_mutex);
+ mutex_init(&c->log_mutex);
+ mutex_init(&c->mst_mutex);
+ mutex_init(&c->umount_mutex);
+ mutex_init(&c->bu_mutex);
+ mutex_init(&c->write_reserve_mutex);
+ init_waitqueue_head(&c->cmt_wq);
+ c->buds = RB_ROOT;
+ c->old_idx = RB_ROOT;
+ c->size_tree = RB_ROOT;
+ c->orph_tree = RB_ROOT;
+ INIT_LIST_HEAD(&c->infos_list);
+ INIT_LIST_HEAD(&c->idx_gc);
+ INIT_LIST_HEAD(&c->replay_list);
+ INIT_LIST_HEAD(&c->replay_buds);
+ INIT_LIST_HEAD(&c->uncat_list);
+ INIT_LIST_HEAD(&c->empty_list);
+ INIT_LIST_HEAD(&c->freeable_list);
+ INIT_LIST_HEAD(&c->frdi_idx_list);
+ INIT_LIST_HEAD(&c->unclean_leb_list);
+ INIT_LIST_HEAD(&c->old_buds);
+ INIT_LIST_HEAD(&c->orph_list);
+ INIT_LIST_HEAD(&c->orph_new);
+ c->no_chk_data_crc = 1;
+
+ c->highest_inum = UBIFS_FIRST_INO;
+ c->lhead_lnum = c->ltail_lnum = UBIFS_LOG_LNUM;
+
+ ubi_get_volume_info(ubi, &c->vi);
+ ubi_get_device_info(c->vi.ubi_num, &c->di);
+ }
+ return c;
+}
- spin_lock_init(&c->cnt_lock);
- spin_lock_init(&c->cs_lock);
- spin_lock_init(&c->buds_lock);
- spin_lock_init(&c->space_lock);
- spin_lock_init(&c->orphan_lock);
- init_rwsem(&c->commit_sem);
- mutex_init(&c->lp_mutex);
- mutex_init(&c->tnc_mutex);
- mutex_init(&c->log_mutex);
- mutex_init(&c->mst_mutex);
- mutex_init(&c->umount_mutex);
- mutex_init(&c->bu_mutex);
- mutex_init(&c->write_reserve_mutex);
- init_waitqueue_head(&c->cmt_wq);
- c->buds = RB_ROOT;
- c->old_idx = RB_ROOT;
- c->size_tree = RB_ROOT;
- c->orph_tree = RB_ROOT;
- INIT_LIST_HEAD(&c->infos_list);
- INIT_LIST_HEAD(&c->idx_gc);
- INIT_LIST_HEAD(&c->replay_list);
- INIT_LIST_HEAD(&c->replay_buds);
- INIT_LIST_HEAD(&c->uncat_list);
- INIT_LIST_HEAD(&c->empty_list);
- INIT_LIST_HEAD(&c->freeable_list);
- INIT_LIST_HEAD(&c->frdi_idx_list);
- INIT_LIST_HEAD(&c->unclean_leb_list);
- INIT_LIST_HEAD(&c->old_buds);
- INIT_LIST_HEAD(&c->orph_list);
- INIT_LIST_HEAD(&c->orph_new);
- c->no_chk_data_crc = 1;
+static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
+{
+ struct ubifs_info *c = sb->s_fs_info;
+ struct inode *root;
+ int err;
c->vfs_sb = sb;
- c->highest_inum = UBIFS_FIRST_INO;
- c->lhead_lnum = c->ltail_lnum = UBIFS_LOG_LNUM;
-
- ubi_get_volume_info(ubi, &c->vi);
- ubi_get_device_info(c->vi.ubi_num, &c->di);
-
/* Re-open the UBI device in read-write mode */
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READWRITE);
if (IS_ERR(c->ubi)) {
err = PTR_ERR(c->ubi);
- goto out_free;
+ goto out;
}
/*
@@ -2091,24 +2094,29 @@ out_bdi:
bdi_destroy(&c->bdi);
out_close:
ubi_close_volume(c->ubi);
-out_free:
- kfree(c);
+out:
return err;
}
static int sb_test(struct super_block *sb, void *data)
{
- dev_t *dev = data;
+ struct ubifs_info *c1 = data;
struct ubifs_info *c = sb->s_fs_info;
- return c->vi.cdev == *dev;
+ return c->vi.cdev == c1->vi.cdev;
+}
+
+static int sb_set(struct super_block *sb, void *data)
+{
+ sb->s_fs_info = data;
+ return set_anon_super(sb, NULL);
}
static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags,
const char *name, void *data)
{
struct ubi_volume_desc *ubi;
- struct ubi_volume_info vi;
+ struct ubifs_info *c;
struct super_block *sb;
int err;
@@ -2125,19 +2133,24 @@ static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags,
name, (int)PTR_ERR(ubi));
return ERR_CAST(ubi);
}
- ubi_get_volume_info(ubi, &vi);
- dbg_gen("opened ubi%d_%d", vi.ubi_num, vi.vol_id);
+ c = alloc_ubifs_info(ubi);
+ if (!c) {
+ err = -ENOMEM;
+ goto out_close;
+ }
+
+ dbg_gen("opened ubi%d_%d", c->vi.ubi_num, c->vi.vol_id);
- sb = sget(fs_type, &sb_test, &set_anon_super, &vi.cdev);
+ sb = sget(fs_type, sb_test, sb_set, c);
if (IS_ERR(sb)) {
err = PTR_ERR(sb);
- goto out_close;
+ kfree(c);
}
if (sb->s_root) {
struct ubifs_info *c1 = sb->s_fs_info;
-
+ kfree(c);
/* A new mount point for already mounted UBIFS */
dbg_gen("this ubi volume is already mounted");
if (!!(flags & MS_RDONLY) != c1->ro_mount) {
@@ -2146,11 +2159,6 @@ static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags,
}
} else {
sb->s_flags = flags;
- /*
- * Pass 'ubi' to 'fill_super()' in sb->s_fs_info where it is
- * replaced by 'c'.
- */
- sb->s_fs_info = ubi;
err = ubifs_fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
if (err)
goto out_deact;
@@ -2170,11 +2178,18 @@ out_close:
return ERR_PTR(err);
}
+static void kill_ubifs_super(struct super_block *s)
+{
+ struct ubifs_info *c = s->s_fs_info;
+ kill_anon_super(s);
+ kfree(c);
+}
+
static struct file_system_type ubifs_fs_type = {
.name = "ubifs",
.owner = THIS_MODULE,
.mount = ubifs_mount,
- .kill_sb = kill_anon_super,
+ .kill_sb = kill_ubifs_super,
};
/*
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index f4213ba1ff85..7f782af286bf 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -131,19 +131,34 @@ xfs_file_fsync(
{
struct inode *inode = file->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
int error = 0;
int log_flushed = 0;
trace_xfs_file_fsync(ip);
- if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+ if (XFS_FORCED_SHUTDOWN(mp))
return -XFS_ERROR(EIO);
xfs_iflags_clear(ip, XFS_ITRUNCATED);
xfs_ioend_wait(ip);
+ if (mp->m_flags & XFS_MOUNT_BARRIER) {
+ /*
+ * If we have an RT and/or log subvolume we need to make sure
+ * to flush the write cache the device used for file data
+ * first. This is to ensure newly written file data make
+ * it to disk before logging the new inode size in case of
+ * an extending write.
+ */
+ if (XFS_IS_REALTIME_INODE(ip))
+ xfs_blkdev_issue_flush(mp->m_rtdev_targp);
+ else if (mp->m_logdev_targp != mp->m_ddev_targp)
+ xfs_blkdev_issue_flush(mp->m_ddev_targp);
+ }
+
/*
* We always need to make sure that the required inode state is safe on
* disk. The inode might be clean but we still might need to force the
@@ -175,9 +190,9 @@ xfs_file_fsync(
* updates. The sync transaction will also force the log.
*/
xfs_iunlock(ip, XFS_ILOCK_SHARED);
- tp = xfs_trans_alloc(ip->i_mount, XFS_TRANS_FSYNC_TS);
+ tp = xfs_trans_alloc(mp, XFS_TRANS_FSYNC_TS);
error = xfs_trans_reserve(tp, 0,
- XFS_FSYNC_TS_LOG_RES(ip->i_mount), 0, 0, 0);
+ XFS_FSYNC_TS_LOG_RES(mp), 0, 0, 0);
if (error) {
xfs_trans_cancel(tp, 0);
return -error;
@@ -209,28 +224,25 @@ xfs_file_fsync(
* force the log.
*/
if (xfs_ipincount(ip)) {
- error = _xfs_log_force_lsn(ip->i_mount,
+ error = _xfs_log_force_lsn(mp,
ip->i_itemp->ili_last_lsn,
XFS_LOG_SYNC, &log_flushed);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
}
- if (ip->i_mount->m_flags & XFS_MOUNT_BARRIER) {
- /*
- * If the log write didn't issue an ordered tag we need
- * to flush the disk cache for the data device now.
- */
- if (!log_flushed)
- xfs_blkdev_issue_flush(ip->i_mount->m_ddev_targp);
-
- /*
- * If this inode is on the RT dev we need to flush that
- * cache as well.
- */
- if (XFS_IS_REALTIME_INODE(ip))
- xfs_blkdev_issue_flush(ip->i_mount->m_rtdev_targp);
- }
+ /*
+ * If we only have a single device, and the log force about was
+ * a no-op we might have to flush the data device cache here.
+ * This can only happen for fdatasync/O_DSYNC if we were overwriting
+ * an already allocated file and thus do not have any metadata to
+ * commit.
+ */
+ if ((mp->m_flags & XFS_MOUNT_BARRIER) &&
+ mp->m_logdev_targp == mp->m_ddev_targp &&
+ !XFS_IS_REALTIME_INODE(ip) &&
+ !log_flushed)
+ xfs_blkdev_issue_flush(mp->m_ddev_targp);
return -error;
}
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index dd21784525a8..d44d92cd12b1 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -182,7 +182,7 @@ xfs_vn_mknod(
if (IS_POSIXACL(dir)) {
default_acl = xfs_get_acl(dir, ACL_TYPE_DEFAULT);
if (IS_ERR(default_acl))
- return -PTR_ERR(default_acl);
+ return PTR_ERR(default_acl);
if (!default_acl)
mode &= ~current_umask();
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 1e3a7ce804dc..a1a881e68a9a 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -627,68 +627,6 @@ xfs_blkdev_put(
blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
}
-/*
- * Try to write out the superblock using barriers.
- */
-STATIC int
-xfs_barrier_test(
- xfs_mount_t *mp)
-{
- xfs_buf_t *sbp = xfs_getsb(mp, 0);
- int error;
-
- XFS_BUF_UNDONE(sbp);
- XFS_BUF_UNREAD(sbp);
- XFS_BUF_UNDELAYWRITE(sbp);
- XFS_BUF_WRITE(sbp);
- XFS_BUF_UNASYNC(sbp);
- XFS_BUF_ORDERED(sbp);
-
- xfsbdstrat(mp, sbp);
- error = xfs_buf_iowait(sbp);
-
- /*
- * Clear all the flags we set and possible error state in the
- * buffer. We only did the write to try out whether barriers
- * worked and shouldn't leave any traces in the superblock
- * buffer.
- */
- XFS_BUF_DONE(sbp);
- XFS_BUF_ERROR(sbp, 0);
- XFS_BUF_UNORDERED(sbp);
-
- xfs_buf_relse(sbp);
- return error;
-}
-
-STATIC void
-xfs_mountfs_check_barriers(xfs_mount_t *mp)
-{
- int error;
-
- if (mp->m_logdev_targp != mp->m_ddev_targp) {
- xfs_notice(mp,
- "Disabling barriers, not supported with external log device");
- mp->m_flags &= ~XFS_MOUNT_BARRIER;
- return;
- }
-
- if (xfs_readonly_buftarg(mp->m_ddev_targp)) {
- xfs_notice(mp,
- "Disabling barriers, underlying device is readonly");
- mp->m_flags &= ~XFS_MOUNT_BARRIER;
- return;
- }
-
- error = xfs_barrier_test(mp);
- if (error) {
- xfs_notice(mp,
- "Disabling barriers, trial barrier write failed");
- mp->m_flags &= ~XFS_MOUNT_BARRIER;
- return;
- }
-}
-
void
xfs_blkdev_issue_flush(
xfs_buftarg_t *buftarg)
@@ -1240,14 +1178,6 @@ xfs_fs_remount(
switch (token) {
case Opt_barrier:
mp->m_flags |= XFS_MOUNT_BARRIER;
-
- /*
- * Test if barriers are actually working if we can,
- * else delay this check until the filesystem is
- * marked writeable.
- */
- if (!(mp->m_flags & XFS_MOUNT_RDONLY))
- xfs_mountfs_check_barriers(mp);
break;
case Opt_nobarrier:
mp->m_flags &= ~XFS_MOUNT_BARRIER;
@@ -1282,8 +1212,6 @@ xfs_fs_remount(
/* ro -> rw */
if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) {
mp->m_flags &= ~XFS_MOUNT_RDONLY;
- if (mp->m_flags & XFS_MOUNT_BARRIER)
- xfs_mountfs_check_barriers(mp);
/*
* If this is the first remount to writeable state we
@@ -1465,9 +1393,6 @@ xfs_fs_fill_super(
if (error)
goto out_free_sb;
- if (mp->m_flags & XFS_MOUNT_BARRIER)
- xfs_mountfs_check_barriers(mp);
-
error = xfs_filestream_mount(mp);
if (error)
goto out_free_sb;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 211930246f20..41d5b8f2bf92 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1372,8 +1372,17 @@ xlog_sync(xlog_t *log,
XFS_BUF_ASYNC(bp);
bp->b_flags |= XBF_LOG_BUFFER;
- if (log->l_mp->m_flags & XFS_MOUNT_BARRIER)
+ if (log->l_mp->m_flags & XFS_MOUNT_BARRIER) {
+ /*
+ * If we have an external log device, flush the data device
+ * before flushing the log to make sure all meta data
+ * written back from the AIL actually made it to disk
+ * before writing out the new log tail LSN in the log buffer.
+ */
+ if (log->l_mp->m_logdev_targp != log->l_mp->m_ddev_targp)
+ xfs_blkdev_issue_flush(log->l_mp->m_ddev_targp);
XFS_BUF_ORDERED(bp);
+ }
ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
ASSERT(XFS_BUF_ADDR(bp) + BTOBB(count) <= log->l_logBBsize);
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2025-01-21 19:20:56 +0000