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| author | Andy Adamson <andros@citi.umich.edu> | 2006-03-20 13:44:25 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-20 13:44:25 -0500 |
| commit | 5de0e5024a4e21251fd80dbfdb83316ce97086bc (patch) | |
| tree | fa34eeee2aa007fb49b34c45e55aafc8b67c6e37 /fs/lockd | |
| parent | 15dadef9460ad8d3b1d5ede1c1697dc79af44a72 (diff) | |
| download | blackbird-op-linux-5de0e5024a4e21251fd80dbfdb83316ce97086bc.tar.gz blackbird-op-linux-5de0e5024a4e21251fd80dbfdb83316ce97086bc.zip | |
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')
| -rw-r--r-- | fs/lockd/svclock.c | 17 |
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); |
