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authorJeff Layton <jlayton@kernel.org>2022-03-16 15:23:00 -0400
committerIlya Dryomov <idryomov@gmail.com>2023-08-22 09:01:47 +0200
commita679e50f728648f7b2f3b349e082448abd388038 (patch)
treefeb342e8c57d332a4d417d3c62d3c7e85308c12b /net/ceph
parent08b8a0440eeec83f8330349f829908858fd52d31 (diff)
libceph: define struct ceph_sparse_extent and add some helpers
When the OSD sends back a sparse read reply, it contains an array of these structures. Define the structure and add a couple of helpers for dealing with them. Also add a place in struct ceph_osd_req_op to store the extent buffer, and code to free it if it's populated when the req is torn down. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-and-tested-by: Luís Henriques <lhenriques@suse.de> Reviewed-by: Milind Changire <mchangir@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 6d7a430bfed8..3e03ae68722c 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -378,6 +378,7 @@ static void osd_req_op_data_release(struct ceph_osd_request *osd_req,
case CEPH_OSD_OP_READ:
case CEPH_OSD_OP_WRITE:
case CEPH_OSD_OP_WRITEFULL:
+ kfree(op->extent.sparse_ext);
ceph_osd_data_release(&op->extent.osd_data);
break;
case CEPH_OSD_OP_CALL:
@@ -1120,6 +1121,18 @@ fail:
}
EXPORT_SYMBOL(ceph_osdc_new_request);
+int __ceph_alloc_sparse_ext_map(struct ceph_osd_req_op *op, int cnt)
+{
+ op->extent.sparse_ext_cnt = cnt;
+ op->extent.sparse_ext = kmalloc_array(cnt,
+ sizeof(*op->extent.sparse_ext),
+ GFP_NOFS);
+ if (!op->extent.sparse_ext)
+ return -ENOMEM;
+ return 0;
+}
+EXPORT_SYMBOL(__ceph_alloc_sparse_ext_map);
+
/*
* We keep osd requests in an rbtree, sorted by ->r_tid.
*/