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authorBoaz Harrosh <bharrosh@panasas.com>2011-02-07 18:12:15 +0200
committerBoaz Harrosh <bharrosh@panasas.com>2011-03-15 15:02:52 +0200
commita49fb4c3d035ab516507b31ec3bd49263caee14d (patch)
treeaa44d448190dacad75b30fe86c49a72ad9cecc0d /fs/exofs/super.c
parent1cea312ad49d9cb964179a784fedb1fcfe396283 (diff)
exofs: deprecate the commands pending counter
One leftover from the days of IBM's original code, is an SB counter that counts in-flight asynchronous commands. And a piece of code that waits for the counter to reach zero at unmount. I guess it might have been needed then, cause of some reference missing or something. I'm not removing it yet but am putting a warning message if ever this counter triggers at unmount. If I'll never see it triggers or reported I'll remove the counter for good. (I had this print as a debug output for a long time and never had it trigger) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'fs/exofs/super.c')
-rw-r--r--fs/exofs/super.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 5eb0851e548..06065bd37fc 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -409,6 +409,10 @@ static void exofs_put_super(struct super_block *sb)
for (num_pend = atomic_read(&sbi->s_curr_pending); num_pend > 0;
num_pend = atomic_read(&sbi->s_curr_pending)) {
wait_queue_head_t wq;
+
+ printk(KERN_NOTICE "%s: !!Pending operations in flight. "
+ "This is a BUG. please report to osd-dev@open-osd.org\n",
+ __func__);
init_waitqueue_head(&wq);
wait_event_timeout(wq,
(atomic_read(&sbi->s_curr_pending) == 0),