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| author | Yan, Zheng <zheng.z.yan@intel.com> | 2013-11-30 12:47:41 +0800 |
|---|---|---|
| committer | Yan, Zheng <zheng.z.yan@intel.com> | 2014-01-21 13:29:33 +0800 |
| commit | 9215aeea622fec7ca8123c6bd6f03a1753e2b0b3 (patch) | |
| tree | 00c4aaae67c7891553f8331b6e0b6e54bf95d08f /fs/ceph/caps.c | |
| parent | ca18bede048e95a749d13410ce1da4ad0ffa7938 (diff) | |
| download | op-kernel-dev-9215aeea622fec7ca8123c6bd6f03a1753e2b0b3.zip op-kernel-dev-9215aeea622fec7ca8123c6bd6f03a1753e2b0b3.tar.gz | |
ceph: check inode caps in ceph_d_revalidate
Some inodes in readdir reply may have no caps. Getattr mds request
for these inodes can return -ESTALE. The fix is consider dentry that
links to inode with no caps as invalid. Invalid dentry causes a
lookup request to send to the mds, the MDS will send caps back.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Diffstat (limited to 'fs/ceph/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index d2154d6..d65ff33 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -891,6 +891,18 @@ static int __ceph_is_any_caps(struct ceph_inode_info *ci) return !RB_EMPTY_ROOT(&ci->i_caps) || ci->i_cap_exporting_mds >= 0; } +int ceph_is_any_caps(struct inode *inode) +{ + struct ceph_inode_info *ci = ceph_inode(inode); + int ret; + + spin_lock(&ci->i_ceph_lock); + ret = __ceph_is_any_caps(ci); + spin_unlock(&ci->i_ceph_lock); + + return ret; +} + /* * Remove a cap. Take steps to deal with a racing iterate_session_caps. * |
