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authorAndy Adamson <andros@citi.umich.edu>2006-03-20 21:44:25 +0300
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 21:44:25 +0300
commit5de0e5024a4e21251fd80dbfdb83316ce97086bc (patch)
treefa34eeee2aa007fb49b34c45e55aafc8b67c6e37 /fs/lockd/svclock.c
parent15dadef9460ad8d3b1d5ede1c1697dc79af44a72 (diff)
downloadlinux-5de0e5024a4e21251fd80dbfdb83316ce97086bc.tar.xz
lockd: simplify nlmsvc_grant_blocked
Reorganize nlmsvc_grant_blocked() to make full use of posix_lock_file(). Note that there's no need for separate calls to posix_test_lock(), posix_locks_deadlock(), or posix_block_lock(). Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/lockd/svclock.c')
-rw-r--r--fs/lockd/svclock.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 42dd105456c5..58bbfede94ec 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -519,7 +519,6 @@ nlmsvc_grant_blocked(struct nlm_block *block)
{
struct nlm_file *file = block->b_file;
struct nlm_lock *lock = &block->b_call.a_args.lock;
- struct file_lock *conflock;
int error;
dprintk("lockd: grant blocked lock %p\n", block);
@@ -539,19 +538,15 @@ nlmsvc_grant_blocked(struct nlm_block *block)
}
/* Try the lock operation again */
- if ((conflock = posix_test_lock(file->f_file, &lock->fl)) != NULL) {
- /* Bummer, we blocked again */
+ error = posix_lock_file(file->f_file, &lock->fl);
+ switch (error) {
+ case 0:
+ break;
+ case -EAGAIN:
dprintk("lockd: lock still blocked\n");
nlmsvc_insert_block(block, NLM_NEVER);
- posix_block_lock(conflock, &lock->fl);
goto out_unlock;
- }
-
- /* Alright, no conflicting lock. Now lock it for real. If the
- * following yields an error, this is most probably due to low
- * memory. Retry the lock in a few seconds.
- */
- if ((error = posix_lock_file(file->f_file, &lock->fl)) < 0) {
+ default:
printk(KERN_WARNING "lockd: unexpected error %d in %s!\n",
-error, __FUNCTION__);
nlmsvc_insert_block(block, 10 * HZ);