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authorSage Weil <sage@newdream.net>2010-07-22 13:47:21 -0700
committerSage Weil <sage@newdream.net>2010-07-22 13:50:45 -0700
commita0dff78dab0ff8d78bd5c9e33c105cf1292f2282 (patch)
tree70e63198ffd47f391b804e6d8303778cf514e581 /fs
parentb37fa16e78d6f9790462b3181602a26b5af36260 (diff)
ceph: avoid dcache readdir for snapdir
We should always go to the MDS for readdir on the hidden snapdir. The set of snapshots can change at any time; the client can't trust its cache for that. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/dir.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index f85719310db2..ea36ba9960d3 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -266,6 +266,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
spin_lock(&inode->i_lock);
if ((filp->f_pos == 2 || fi->dentry) &&
!ceph_test_opt(client, NOASYNCREADDIR) &&
+ ceph_snap(inode) != CEPH_SNAPDIR &&
(ci->i_ceph_flags & CEPH_I_COMPLETE) &&
__ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1)) {
err = __dcache_readdir(filp, dirent, filldir);

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