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| author | Sage Weil <sage@newdream.net> | 2010-11-07 09:39:00 -0800 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-11-07 09:39:23 -0800 |
| commit | feb4cc9bb433bf1491ac5ffbba133f3258dacf06 (patch) | |
| tree | 6339043d3fd867683459d9dc33f146b2f7e37d75 /fs/ceph/caps.c | |
| parent | 912a9b0319a8eb9e0834b19a25e01013ab2d6a9f (diff) | |
| download | kernel_samsung_crespo-feb4cc9bb433bf1491ac5ffbba133f3258dacf06.zip kernel_samsung_crespo-feb4cc9bb433bf1491ac5ffbba133f3258dacf06.tar.gz kernel_samsung_crespo-feb4cc9bb433bf1491ac5ffbba133f3258dacf06.tar.bz2 | |
ceph: re-request max_size if cap auth changes
If the auth cap migrates to another MDS, clear requested_max_size so that
we resend any pending max_size increase requests. This fixes potential
hangs on writes that extend a file and race with an cap migration between
MDSs.
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 6e0942f..04b207b 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -2689,6 +2689,11 @@ static void handle_cap_import(struct ceph_mds_client *mdsc, NULL /* no caps context */); try_flush_caps(inode, session, NULL); up_read(&mdsc->snap_rwsem); + + /* make sure we re-request max_size, if necessary */ + spin_lock(&inode->i_lock); + ci->i_requested_max_size = 0; + spin_unlock(&inode->i_lock); } /* |