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authorJ. Bruce Fields <bfields@citi.umich.edu>2006-01-18 20:43:18 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-18 22:20:24 -0500
commit8a280510852959c0d51b1d625e90c0491c238368 (patch)
treee24b9167f5f979cc126f07ef32c851ab249a7766 /fs/nfsd/nfs4state.c
parenta6f6ef2f1d7329111fcad7db48fb7adba5062d0a (diff)
[PATCH] nfsd4: fix nfsd4_lock cleanup on failure
release_state_owner also puts the lock owner on the close_lru. There's no need for that, though; replays of the failed lock would be handled by the openowner not the lockowner. Also consolidate the cleanup a bit, fixing leaks that can happen if errors occur between the time a new lock owner is allocated and the lock is done. Remove a comment and dprintk that look a little redundant. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
-rw-r--r--fs/nfsd/nfs4state.c18
1 files changed, 4 insertions, 14 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3d4a2ec97caa..5bf7fd3947ce 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2744,10 +2744,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
2744 if (lock_sop == NULL) 2744 if (lock_sop == NULL)
2745 goto out; 2745 goto out;
2746 lock_stp = alloc_init_lock_stateid(lock_sop, fp, open_stp); 2746 lock_stp = alloc_init_lock_stateid(lock_sop, fp, open_stp);
2747 if (lock_stp == NULL) { 2747 if (lock_stp == NULL)
2748 release_stateowner(lock_sop);
2749 goto out; 2748 goto out;
2750 }
2751 } else { 2749 } else {
2752 /* lock (lock owner + lock stateid) already exists */ 2750 /* lock (lock owner + lock stateid) already exists */
2753 status = nfs4_preprocess_seqid_op(current_fh, 2751 status = nfs4_preprocess_seqid_op(current_fh,
@@ -2815,7 +2813,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
2815 status = nfserr_deadlock; 2813 status = nfserr_deadlock;
2816 default: 2814 default:
2817 dprintk("NFSD: nfsd4_lock: posix_lock_file() failed! status %d\n",status); 2815 dprintk("NFSD: nfsd4_lock: posix_lock_file() failed! status %d\n",status);
2818 goto out_destroy_new_stateid; 2816 goto out;
2819 } 2817 }
2820 2818
2821conflicting_lock: 2819conflicting_lock:
@@ -2829,17 +2827,9 @@ conflicting_lock:
2829 goto out; 2827 goto out;
2830 } 2828 }
2831 nfs4_set_lock_denied(conflock, &lock->lk_denied); 2829 nfs4_set_lock_denied(conflock, &lock->lk_denied);
2832
2833out_destroy_new_stateid:
2834 if (lock->lk_is_new) {
2835 dprintk("NFSD: nfsd4_lock: destroy new stateid!\n");
2836 /*
2837 * An error encountered after instantiation of the new
2838 * stateid has forced us to destroy it.
2839 */
2840 release_state_owner(lock_stp, LOCK_STATE);
2841 }
2842out: 2830out:
2831 if (status && lock->lk_is_new && lock_sop)
2832 release_stateowner(lock_sop);
2843 if (lock->lk_stateowner) { 2833 if (lock->lk_stateowner) {
2844 nfs4_get_stateowner(lock->lk_stateowner); 2834 nfs4_get_stateowner(lock->lk_stateowner);
2845 *replay_owner = lock->lk_stateowner; 2835 *replay_owner = lock->lk_stateowner;