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authorDavid Teigland <teigland@redhat.com>2007-06-08 17:01:40 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 08:23:33 +0100
commita7a2ff8a951ab373732116e7c31e2e1fe025d5e0 (patch)
treeaec05033231051f07af384f2e89dd500ff3d7a66 /fs/gfs2/locking
parentd88101d4d82ea09433692af30618c3b7afb7da02 (diff)
downloadop-kernel-dev-a7a2ff8a951ab373732116e7c31e2e1fe025d5e0.zip
op-kernel-dev-a7a2ff8a951ab373732116e7c31e2e1fe025d5e0.tar.gz
[GFS2] return conflicts for GETLK
We weren't returning the correct result when GETLK found a conflict, which is indicated by userspace passing back a 1. Signed-off-by: Abhijith Das <adas redhat com> Signed-off-by: David Teigland <teigland redhat com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/locking')
-rw-r--r--fs/gfs2/locking/dlm/plock.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/gfs2/locking/dlm/plock.c b/fs/gfs2/locking/dlm/plock.c
index 1dc7680..fba1f1d 100644
--- a/fs/gfs2/locking/dlm/plock.c
+++ b/fs/gfs2/locking/dlm/plock.c
@@ -254,16 +254,20 @@ int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
}
spin_unlock(&ops_lock);
+ /* info.rv from userspace is 1 for conflict, 0 for no-conflict,
+ -ENOENT if there are no locks on the file */
+
rv = op->info.rv;
fl->fl_type = F_UNLCK;
if (rv == -ENOENT)
rv = 0;
- else if (rv == 0 && op->info.pid != fl->fl_pid) {
+ else if (rv > 0) {
fl->fl_type = (op->info.ex) ? F_WRLCK : F_RDLCK;
fl->fl_pid = op->info.pid;
fl->fl_start = op->info.start;
fl->fl_end = op->info.end;
+ rv = 0;
}
kfree(op);
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