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| author | Ilya Dryomov <idryomov@gmail.com> | 2016-02-16 15:00:24 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2016-03-25 18:51:52 +0100 |
| commit | 34b759b4a22b0acb82423389a24699357798cf3c (patch) | |
| tree | 02c1f45f274762ab91fd180e928aedb93612c5a5 /fs/ceph/super.h | |
| parent | ceph: fix a wrong comparison (diff) | |
| download | linux-34b759b4a22b0acb82423389a24699357798cf3c.tar.xz linux-34b759b4a22b0acb82423389a24699357798cf3c.zip | |
ceph: kill ceph_empty_snapc
ceph_empty_snapc->num_snaps == 0 at all times. Passing such a snapc to
ceph_osdc_alloc_request() (possibly through ceph_osdc_new_request()) is
equivalent to passing NULL, as ceph_osdc_alloc_request() uses it only
for sizing the request message.
Further, in all four cases the subsequent ceph_osdc_build_request() is
passed NULL for snapc, meaning that 0 is encoded for seq and num_snaps
and making ceph_empty_snapc entirely useless. The two cases where it
actually mattered were removed in commits 860560904962 ("ceph: avoid
sending unnessesary FLUSHSNAP message") and 23078637e054 ("ceph: fix
queuing inode to mdsdir's snaprealm").
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index d4425b172bb6..57ac43d64322 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -720,7 +720,6 @@ static inline int default_congestion_kb(void) /* snap.c */ -extern struct ceph_snap_context *ceph_empty_snapc; struct ceph_snap_realm *ceph_lookup_snap_realm(struct ceph_mds_client *mdsc, u64 ino); extern void ceph_get_snap_realm(struct ceph_mds_client *mdsc, @@ -737,8 +736,6 @@ extern void ceph_queue_cap_snap(struct ceph_inode_info *ci); extern int __ceph_finish_cap_snap(struct ceph_inode_info *ci, struct ceph_cap_snap *capsnap); extern void ceph_cleanup_empty_realms(struct ceph_mds_client *mdsc); -extern int ceph_snap_init(void); -extern void ceph_snap_exit(void); /* * a cap_snap is "pending" if it is still awaiting an in-progress |