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drivers/block/aoe/aoeblk.c: ratelimit a warning printk

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As described in https://bugzilla.kernel.org/show_bug.cgi?id=19922

: I had an AoE device go down overnight, and while a server was trying to
: write to it, it was also writing this message to its logs:
:
: 209                 printk(KERN_INFO "aoe: device %ld.%d is not up\n",
: 210                         d->aoemajor, d->aoeminor);
:
: The message appeared many times per second, and over several hours
: produced about 7.5 gigabytes of log files, filling up all free space on
: the root filesystem.

Cc: "Ed L. Cashin" <ecashin@coraid.com>
Suggested-by: Roman Mamedov <roman@rm.pp.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Andrew Morton 2010-10-28 06:15:26 -06:00 committed by Jens Axboe
parent e1fbd9210d
commit 027b180d74
1 changed files with 3 additions and 1 deletions
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4
drivers/block/aoe/aoeblk.c
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@ -4,12 +4,14 @@
* block device routines
*/
#include <linux/kernel.h>
#include <linux/hdreg.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <linux/fs.h>
#include <linux/ioctl.h>
#include <linux/slab.h>
#include <linux/ratelimit.h>
#include <linux/genhd.h>
#include <linux/netdevice.h>
#include <linux/mutex.h>
@ -207,7 +209,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio)
spin_lock_irqsave(&d->lock, flags);
if ((d->flags & DEVFL_UP) == 0) {
printk(KERN_INFO "aoe: device %ld.%d is not up\n",
pr_info_ratelimited("aoe: device %ld.%d is not up\n",
d->aoemajor, d->aoeminor);
spin_unlock_irqrestore(&d->lock, flags);
mempool_free(buf, d->bufpool);