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| author | Marc Eshel <eshel@almaden.ibm.com> | 2007-01-18 16:15:35 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2007-05-06 19:23:24 -0400 |
| commit | 150b393456e5a23513cace286a019e87151e47f0 (patch) | |
| tree | 91599ec9b759f7e3c5defcb8dd361acd7288154c /fs/lockd/svclock.c | |
| parent | 7723ec9777d9832849b76475b1a21a2872a40d20 (diff) | |
| download | lwn-150b393456e5a23513cace286a019e87151e47f0.tar.gz lwn-150b393456e5a23513cace286a019e87151e47f0.zip | |
locks: allow {vfs,posix}_lock_file to return conflicting lock
The nfsv4 protocol's lock operation, in the case of a conflict, returns
information about the conflicting lock.
It's unclear how clients can use this, so for now we're not going so far as to
add a filesystem method that can return a conflicting lock, but we may as well
return something in the local case when it's easy to.
Signed-off-by: Marc Eshel <eshel@almaden.ibm.com>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Diffstat (limited to 'fs/lockd/svclock.c')
| -rw-r--r-- | fs/lockd/svclock.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index 97b0160ef10f..3b0e7a4b817b 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -363,7 +363,7 @@ again: } else lock = &block->b_call->a_args.lock; - error = posix_lock_file(file->f_file, &lock->fl); + error = posix_lock_file(file->f_file, &lock->fl, NULL); lock->fl.fl_flags &= ~FL_SLEEP; dprintk("lockd: posix_lock_file returned %d\n", error); @@ -467,7 +467,7 @@ nlmsvc_unlock(struct nlm_file *file, struct nlm_lock *lock) nlmsvc_cancel_blocked(file, lock); lock->fl.fl_type = F_UNLCK; - error = posix_lock_file(file->f_file, &lock->fl); + error = posix_lock_file(file->f_file, &lock->fl, NULL); return (error < 0)? nlm_lck_denied_nolocks : nlm_granted; } @@ -569,7 +569,7 @@ nlmsvc_grant_blocked(struct nlm_block *block) /* Try the lock operation again */ lock->fl.fl_flags |= FL_SLEEP; - error = posix_lock_file(file->f_file, &lock->fl); + error = posix_lock_file(file->f_file, &lock->fl, NULL); lock->fl.fl_flags &= ~FL_SLEEP; switch (error) { |