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| author | Ingo Molnar <mingo@kernel.org> | 2018-03-10 10:19:28 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-10 10:19:28 +0100 |
| commit | d88f1f1fdb9f8f60602b406c89342e113a19df7f (patch) | |
| tree | 16da02010b66f7f54fde737c5c54e43980789f79 /fs/ceph/caps.c | |
| parent | 04860d48a8aba5b21ae5ba1f86b0d4e3bc628fff (diff) | |
| parent | cdb06e9d8f520c969676e7d6778cffe5894f079f (diff) | |
| download | linux-stable-d88f1f1fdb9f8f60602b406c89342e113a19df7f.tar.gz linux-stable-d88f1f1fdb9f8f60602b406c89342e113a19df7f.tar.bz2 linux-stable-d88f1f1fdb9f8f60602b406c89342e113a19df7f.zip | |
Merge branch 'linus' into locking/core, to pick up fixes and dependencies
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/ceph/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 6582c4507e6c..0e5bd3e3344e 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3965,6 +3965,32 @@ void ceph_put_fmode(struct ceph_inode_info *ci, int fmode) } /* + * For a soon-to-be unlinked file, drop the AUTH_RDCACHE caps. If it + * looks like the link count will hit 0, drop any other caps (other + * than PIN) we don't specifically want (due to the file still being + * open). + */ +int ceph_drop_caps_for_unlink(struct inode *inode) +{ + struct ceph_inode_info *ci = ceph_inode(inode); + int drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; + + spin_lock(&ci->i_ceph_lock); + if (inode->i_nlink == 1) { + drop |= ~(__ceph_caps_wanted(ci) | CEPH_CAP_PIN); + + ci->i_ceph_flags |= CEPH_I_NODELAY; + if (__ceph_caps_dirty(ci)) { + struct ceph_mds_client *mdsc = + ceph_inode_to_client(inode)->mdsc; + __cap_delay_requeue_front(mdsc, ci); + } + } + spin_unlock(&ci->i_ceph_lock); + return drop; +} + +/* * Helpers for embedding cap and dentry lease releases into mds * requests. * |