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| author |   Sage Weil <sage@newdream.net> | 2010-05-14 09:35:38 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-05-17 10:25:45 -0700 |
| commit | 81a6cf2d30eac5d790f53cdff110892f7b18c7fe (patch) | |
| tree | 9dcc1d4492b8736cda6a007a4a1c076048bd87af /fs/ceph/mds_client.c | |
| parent | ceph: fix race between aborted requests and fill_trace (diff) | |
| download | linux-dev-81a6cf2d30eac5d790f53cdff110892f7b18c7fe.tar.xz linux-dev-81a6cf2d30eac5d790f53cdff110892f7b18c7fe.zip | |
ceph: invalidate affected dentry leases on aborted requests
If we abort a request, we return to caller, but the request may still
complete. And if we hold the dir FILE_EXCL bit, we may not release a
lease when sending a request. A simple un-tar, control-c, un-tar again
will reproduce the bug (manifested as a 'Cannot open: File exists').
Ensure we invalidate affected dentry leases (as well dir I_COMPLETE) so
we don't have valid (but incorrect) leases. Do the same, consistently, at
other sites where I_COMPLETE is similarly cleared.
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/mds_client.c')
| -rw-r--r-- | fs/ceph/mds_client.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index c0568fe3c0ba..76995a960432 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1732,12 +1732,17 @@ int ceph_mdsc_do_request(struct ceph_mds_client *mdsc, struct ceph_inode_info *ci = ceph_inode(req->r_locked_dir); - dout("aborted, clearing I_COMPLETE on %p\n", + dout("aborted, clearing I_COMPLETE on %p, leases\n", req->r_locked_dir); spin_lock(&req->r_locked_dir->i_lock); ci->i_ceph_flags &= ~CEPH_I_COMPLETE; ci->i_release_count++; spin_unlock(&req->r_locked_dir->i_lock); + + if (req->r_dentry) + ceph_invalidate_dentry_lease(req->r_dentry); + if (req->r_old_dentry) + ceph_invalidate_dentry_lease(req->r_old_dentry); } } else { err = req->r_err; |