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authorKinglong Mee <kinglongmee@gmail.com>2014-08-22 10:18:43 -0400
committerJeff Layton <jlayton@primarydata.com>2014-09-09 16:01:09 -0400
commitf328296e27414394f25cebaef4a111a82ce0df32 (patch)
tree2263381bcef86e21e5d20dbfdd72c1f248382daa /fs/lockd
parent5c97d7b1479982a48cf2129062b880c2555049ac (diff)
downloadop-kernel-dev-f328296e27414394f25cebaef4a111a82ce0df32.zip
op-kernel-dev-f328296e27414394f25cebaef4a111a82ce0df32.tar.gz
locks: Copy fl_lmops information for conflock in locks_copy_conflock()
Commit d5b9026a67 ([PATCH] knfsd: locks: flag NFSv4-owned locks) using fl_lmops field in file_lock for checking nfsd4 lockowner. But, commit 1a747ee0cc (locks: don't call ->copy_lock methods on return of conflicting locks) causes the fl_lmops of conflock always be NULL. Also, commit 0996905f93 (lockd: posix_test_lock() should not call locks_copy_lock()) caused the fl_lmops of conflock always be NULL too. Make sure copy the private information by fl_copy_lock() in struct file_lock_operations, merge __locks_copy_lock() to fl_copy_lock(). Jeff advice, "Set fl_lmops on conflocks, but don't set fl_ops. fl_ops are superfluous, since they are callbacks into the filesystem. There should be no need to bother the filesystem at all with info in a conflock. But, lock _ownership_ matters for conflocks and that's indicated by the fl_lmops. So you really do want to copy the fl_lmops for conflocks I think." v5: add missing calling of locks_release_private() in nlmsvc_testlock() v4: only copy fl_lmops for conflock, don't copy fl_ops Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/svclock.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 2a61701..acfa94d 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -586,6 +586,7 @@ conf_lock:
conflock->fl.fl_type = lock->fl.fl_type;
conflock->fl.fl_start = lock->fl.fl_start;
conflock->fl.fl_end = lock->fl.fl_end;
+ locks_release_private(&lock->fl);
ret = nlm_lck_denied;
out:
if (block)
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