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| author | Sage Weil <sage@newdream.net> | 2010-11-07 09:07:15 -0800 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-11-07 09:07:15 -0800 |
| commit | 7421ab8041d98363edfb85955fa3b9849ffae366 (patch) | |
| tree | d1ae0dbaf56ed8f56849f4199626a303ec86b03d /fs/ceph | |
| parent | d8b16b3d1c9d8d9124d647d05797383d35e2d645 (diff) | |
| download | linux-7421ab8041d98363edfb85955fa3b9849ffae366.tar.gz linux-7421ab8041d98363edfb85955fa3b9849ffae366.tar.bz2 linux-7421ab8041d98363edfb85955fa3b9849ffae366.zip | |
ceph: fix open for write on clustered mds
Normally when we open a file we already have a cap, and simply update the
wanted set. However, if we open a file for write, but don't have an auth
cap, that doesn't work; we need to open a new cap with the auth MDS. Only
reuse existing caps if we are opening for read or the existing cap is auth.
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/file.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c index e77c28cf3690..87ee944724f8 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -154,11 +154,13 @@ int ceph_open(struct inode *inode, struct file *file) } /* - * No need to block if we have any caps. Update wanted set + * No need to block if we have caps on the auth MDS (for + * write) or any MDS (for read). Update wanted set * asynchronously. */ spin_lock(&inode->i_lock); - if (__ceph_is_any_real_caps(ci)) { + if (__ceph_is_any_real_caps(ci) && + (((fmode & CEPH_FILE_MODE_WR) == 0) || ci->i_auth_cap)) { int mds_wanted = __ceph_caps_mds_wanted(ci); int issued = __ceph_caps_issued(ci, NULL); |