projects
/
platform
/
adaptation
/
renesas_rcar
/
renesas_kernel.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
5021976
)
Btrfs: suppress printk() if all device I/O stats are zero
author
Stefan Behrens
<sbehrens@giantdisaster.de>
Tue, 17 Jul 2012 15:02:11 +0000
(09:02 -0600)
committer
Chris Mason
<chris.mason@fusionio.com>
Mon, 23 Jul 2012 20:28:07 +0000
(16:28 -0400)
Code is added to suppress the I/O stats printing at mount time if all
statistic values are zero.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
fs/btrfs/volumes.c
patch
|
blob
|
history
diff --git
a/fs/btrfs/volumes.c
b/fs/btrfs/volumes.c
index
1443607
..
b8708f9
100644
(file)
--- a/
fs/btrfs/volumes.c
+++ b/
fs/btrfs/volumes.c
@@
-4884,6
+4884,14
@@
void btrfs_dev_stat_print_on_error(struct btrfs_device *dev)
static void btrfs_dev_stat_print_on_load(struct btrfs_device *dev)
{
+ int i;
+
+ for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++)
+ if (btrfs_dev_stat_read(dev, i) != 0)
+ break;
+ if (i == BTRFS_DEV_STAT_VALUES_MAX)
+ return; /* all values == 0, suppress message */
+
printk_in_rcu(KERN_INFO "btrfs: bdev %s errs: wr %u, rd %u, flush %u, corrupt %u, gen %u\n",
rcu_str_deref(dev->name),
btrfs_dev_stat_read(dev, BTRFS_DEV_STAT_WRITE_ERRS),