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| author |   Yan, Zheng <zheng.z.yan@intel.com> | 2013-07-24 12:22:11 +0800 |
|---|---|---|
| committer |   Sage Weil <sage@inktank.com> | 2013-08-09 17:55:32 -0700 |
| commit | 6f60f889470aecf747610279545c054a99aadca3 (patch) | |
| tree | 60f5781c7673d1d0e06ef1b658e652b2738daf24 /fs/ceph/super.h | |
| parent | ceph: WQ_NON_REENTRANT is meaningless and going away (diff) | |
| download | linux-dev-6f60f889470aecf747610279545c054a99aadca3.tar.xz linux-dev-6f60f889470aecf747610279545c054a99aadca3.zip | |
ceph: fix freeing inode vs removing session caps race
remove_session_caps() uses iterate_session_caps() to remove caps,
but iterate_session_caps() skips inodes that are being deleted.
So session->s_nr_caps can be non-zero after iterate_session_caps()
return.
We can fix the issue by waiting until deletions are complete.
__wait_on_freeing_inode() is designed for the job, but it is not
exported, so we use lookup inode function to access it.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index cbded572345e..afcd62a68916 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -677,6 +677,8 @@ extern void ceph_destroy_inode(struct inode *inode); extern struct inode *ceph_get_inode(struct super_block *sb, struct ceph_vino vino); +extern struct inode *ceph_lookup_inode(struct super_block *sb, + struct ceph_vino vino); extern struct inode *ceph_get_snapdir(struct inode *parent); extern int ceph_fill_file_size(struct inode *inode, int issued, u32 truncate_seq, u64 truncate_size, u64 size); |