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linux/drivers/block
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Dan Streetman da6ccaaa79 nbd: ratelimit error msgs after socket close 
Make the "Attempted send on closed socket" error messages generated in
nbd_request_handler() ratelimited.

When the nbd socket is shutdown, the nbd_request_handler() function emits
an error message for every request remaining in its queue.  If the queue
is large, this will spam a large amount of messages to the log.  There's
no need for a separate error message for each request, so this patch
ratelimits it.

In the specific case this was found, the system was virtual and the error
messages were logged to the serial port, which overwhelmed it.

Fixes: 4d48a542b4 ("nbd: fix I/O hang on disconnected nbds")
Signed-off-by: Dan Streetman <dan.streetman@canonical.com>
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
2016-02-05 08:55:15 +01:00
..
aoe wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
drbd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-23 12:24:56 -08:00
mtip32xx Merge branch 'for-4.5/drivers' of git://git.kernel.dk/linux-block 2016-01-21 18:19:38 -08:00
paride mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
rsxx rsxx: don't open-code memdup_user() 2016-01-06 08:25:24 -05:00
xen-blkback Merge branch 'for-4.5/drivers' of git://git.kernel.dk/linux-block 2016-01-21 18:19:38 -08:00
zram zram: don't call idr_remove() from zram_remove() 2016-01-15 17:56:32 -08:00
amiflop.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
ataflop.c Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next 2014-06-02 09:29:34 -07:00
brd.c mm, dax, pmem: introduce pfn_t 2016-01-15 17:56:32 -08:00
cciss.c SCSI misc on 20160113 2016-01-13 19:37:36 -08:00
cciss.h
cciss_cmd.h
cciss_scsi.c scsi: Do not set cmd_per_lun to 1 in the host template 2015-05-31 18:06:28 -07:00
cciss_scsi.h
cpqarray.c genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely 2015-03-05 20:53:06 +01:00
cpqarray.h
cryptoloop.c
DAC960.c block: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
DAC960.h
floppy.c floppy: make local variable non-static 2015-12-08 15:15:32 +01:00
hd.c block: hd: remove deprecated IRQF_DISABLED 2014-10-01 08:16:07 -06:00
ida_cmd.h
ida_ioctl.h
Kconfig nvme: move to a new drivers/nvme/host directory 2015-10-09 10:40:37 -06:00
loop.c Merge branch 'for-4.4/core' into for-4.4/drivers 2015-10-09 10:40:29 -06:00
loop.h block: loop: support DIO & AIO 2015-09-23 11:01:16 -06:00
Makefile nvme: move to a new drivers/nvme/host directory 2015-10-09 10:40:37 -06:00
mg_disk.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
nbd.c nbd: ratelimit error msgs after socket close 2016-02-05 08:55:15 +01:00
null_blk.c Merge branch 'for-4.5/lightnvm' of git://git.kernel.dk/linux-block 2016-01-21 19:01:55 -08:00
osdblk.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
pktcdvd.c Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
ps3disk.c
ps3vram.c block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
rbd.c rbd: delete an unnecessary check before rbd_dev_destroy() 2016-01-21 19:36:07 +01:00
rbd_types.h
skd_main.c block: have drivers use blk_queue_max_discard_sectors() 2015-07-17 08:41:53 -06:00
skd_s1120.h
smart1,2.h
sunvdc.c sunvdc: reconnect ldc after vds service domain restarts 2014-12-11 18:52:45 -08:00
swim.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
swim3.c powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
swim_asm.S
sx8.c sx8: use real time for the command seconds 2015-12-23 08:42:59 -07:00
umem.c block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
umem.h
virtio_blk.c blk-mq: fix racy updates of rq->errors 2015-10-01 10:10:55 +02:00
xen-blkfront.c xen/blkfront: Fix crash if backend doesn't follow the right states. 2016-01-04 12:21:26 -05:00
xsysace.c block: systemace: Remove .owner field for driver 2014-08-21 20:37:54 -05:00
z2ram.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00