Convert "VFS is out of sync with lock manager!" printk() in
do_vfs_lock() to dprintk() since the message is useless in normal use
but could possibly be useful as a debugging aid.
Also turn off FL_SLEEP when calling do_vfs_lock() just in case, after
getting -EINTR or -ERESTARTSYS.
Patch has been tested on a production webserver and works just fine.
Signed-off-by: Neil Brown <[email protected]>
Signed-off-by: Jesper Juhl <[email protected]>
---
fs/nfs/file.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 0dd6be3..4cf4166 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -434,8 +434,8 @@ static int do_vfs_lock(struct file *file
BUG();
}
if (res < 0)
- printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n",
- __FUNCTION__);
+ dprintk("%s: VFS is out of sync with lock manager (res = %d)!\n",
+ __FUNCTION__, res);
return res;
}
@@ -485,10 +485,13 @@ static int do_setlk(struct file *filp, i
* we clean up any state on the server. We therefore
* record the lock call as having succeeded in order to
* ensure that locks_remove_posix() cleans it out when
- * the process exits.
+ * the process exits. Make sure not to sleep if
+ * someone else holds the lock.
*/
- if (status == -EINTR || status == -ERESTARTSYS)
+ if (status == -EINTR || status == -ERESTARTSYS) {
+ fl->fl_flags &= ~FL_SLEEP;
do_vfs_lock(filp, fl);
+ }
} else
status = do_vfs_lock(filp, fl);
unlock_kernel();
-
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