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| author |   Jeff Layton <jlayton@primarydata.com> | 2014-08-22 10:18:44 -0400 |
|---|---|---|
| committer | Jeff Layton <jlayton@primarydata.com> | 2014-09-09 16:01:09 -0400 |
| commit | 09802fd2a8caea2a2147fca8d7975697c5de573d (patch) | |
| tree | 99f87c52a0921d3eaa9796a349784bf676bc3b3c /include/linux/lockd/lockd.h | |
| parent | NFSD: Get reference of lockowner when coping file_lock (diff) | |
| download | wireguard-linux-09802fd2a8caea2a2147fca8d7975697c5de573d.tar.xz wireguard-linux-09802fd2a8caea2a2147fca8d7975697c5de573d.zip | |
lockd: rip out deferred lock handling from testlock codepath
As Kinglong points out, the nlm_block->b_fl field is no longer used at
all. Also, vfs_test_lock in the generic locking code will only return
FILE_LOCK_DEFERRED if FL_SLEEP is set, and it isn't here.
The only other place that returns that value is the DLM lock code, but
it only does that in dlm_posix_lock, never in dlm_posix_get.
Remove all of the deferred locking code from the testlock codepath
since it doesn't appear to ever be used anyway.
I do have a small concern that this might cause a behavior change in the
case where you have a block already sitting on the list when the
testlock request comes in, but that looks like it doesn't really work
properly anyway. I think it's best to just pass that down to
vfs_test_lock and let the filesystem report that instead of trying to
infer what's going on with the lock by looking at an existing block.
Cc: cluster-devel@redhat.com
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Kinglong Mee <kinglongmee@gmail.com>
Diffstat (limited to 'include/linux/lockd/lockd.h')
| -rw-r--r-- | include/linux/lockd/lockd.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index 219d79627c05..ff82a32871b5 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -178,7 +178,6 @@ struct nlm_block { unsigned char b_granted; /* VFS granted lock */ struct nlm_file * b_file; /* file in question */ struct cache_req * b_cache_req; /* deferred request handling */ - struct file_lock * b_fl; /* set for GETLK */ struct cache_deferred_req * b_deferred_req; unsigned int b_flags; /* block flags */ #define B_QUEUED 1 /* lock queued */ |