linux/drivers/block
Sergey Senozhatsky 708649694a zram: unify error reporting
Make zram syslog error reporting more consistent. We have random
error levels in some places. For example, critical errors like
  "Error allocating memory for compressed page"
and
  "Unable to allocate temp memory"
are reported as KERN_INFO messages.

a) Reassign error levels

Error messages that directly affect zram
functionality -- pr_err():

 Error allocating zram address table
 Error creating memory pool
 Decompression failed! err=%d, page=%u
 Unable to allocate temp memory
 Compression failed! err=%d
 Error allocating memory for compressed page: %u, size=%zu
 Cannot initialise %s compressing backend
 Error allocating disk queue for device %d
 Error allocating disk structure for device %d
 Error creating sysfs group for device %d
 Unable to register zram-control class
 Unable to get major number

Messages that do not affect functionality, but user
must be warned (because sysfs attrs will be removed in
this particular case) -- pr_warn():

 %d (%s) Attribute %s (and others) will be removed. %s

Messages that do not affect functionality and mostly are
informative -- pr_info():

 Cannot change max compression streams
 Can't change algorithm for initialized device
 Cannot change disksize for initialized device
 Added device: %s
 Removed device: %s

b) Update sysfs_create_group() error message

First, it lacks a trailing new line; add it.  Second, every error message
in zram_add() has a "for device %d" part, which makes errors more
informative.  Add missing part to "Error creating sysfs group" message.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-08 15:35:28 -07:00
..
aoe Revert "block: remove artifical max_hw_sectors cap" 2015-08-18 13:21:13 -07:00
drbd block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
mtip32xx mtip32x: fix regression introduced by blk-mq per-hctx flush 2015-08-25 14:35:51 -06:00
paride Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
rsxx block: make generic_make_request handle arbitrarily sized bios 2015-08-13 12:31:33 -06:00
xen-blkback Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block 2015-09-02 13:10:25 -07:00
zram zram: unify error reporting 2015-09-08 15:35:28 -07:00
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 block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
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
cciss.c cciss: correct the non-resettable board list 2015-05-31 11:14:34 -07:00
cciss.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 move linux/loop.h to drivers/block 2013-06-29 12:46:45 +04:00
DAC960.c block: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
DAC960.h
floppy.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
hd.c block: hd: remove deprecated IRQF_DISABLED 2014-10-01 08:16:07 -06:00
ida_cmd.h
ida_ioctl.h
Kconfig libnvdimm, pmem: move pmem to drivers/nvdimm/ 2015-06-24 21:24:10 -04:00
loop.c block: have drivers use blk_queue_max_discard_sectors() 2015-07-17 08:41:53 -06:00
loop.h block: loop: don't hold lo_ctl_mutex in lo_open 2015-05-20 09:06:09 -06:00
Makefile libnvdimm, pmem: move pmem to drivers/nvdimm/ 2015-06-24 21:24:10 -04:00
mg_disk.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
nbd.c nbd: flags is a u32 variable 2015-08-17 08:23:01 -06:00
null_blk.c Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block 2015-09-02 13:10:25 -07:00
nvme-core.c Merge branch 'for-4.3/drivers' of git://git.kernel.dk/linux-block 2015-09-02 13:14:58 -07:00
nvme-scsi.c Merge branch 'for-4.2/drivers' of git://git.kernel.dk/linux-block 2015-06-25 15:12:50 -07:00
osdblk.c block: support different tag allocation policy 2015-01-23 14:15:46 -07:00
pktcdvd.c block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
ps3disk.c block: Kill bio_segments()/bi_vcnt usage 2013-11-23 22:33:51 -08:00
ps3vram.c block: make generic_make_request handle arbitrarily sized bios 2015-08-13 12:31:33 -06:00
rbd_types.h rbd: get rid of RBD_MAX_SEG_NAME_LEN 2012-12-17 08:37:29 -06:00
rbd.c Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block 2015-09-02 13:10:25 -07:00
skd_main.c block: have drivers use blk_queue_max_discard_sectors() 2015-07-17 08:41:53 -06:00
skd_s1120.h skd: fix formatting in skd_s1120.h 2013-11-08 09:10:30 -07:00
smart1,2.h
sunvdc.c sunvdc: reconnect ldc after vds service domain restarts 2014-12-11 18:52:45 -08:00
swim3.c powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
swim_asm.S
swim.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
sx8.c block: rename REQ_TYPE_SPECIAL to REQ_TYPE_DRV_PRIV 2015-05-05 13:40:03 -06:00
umem.c block: make generic_make_request handle arbitrarily sized bios 2015-08-13 12:31:33 -06:00
umem.h
virtio_blk.c block: rename REQ_TYPE_SPECIAL to REQ_TYPE_DRV_PRIV 2015-05-05 13:40:03 -06:00
xen-blkfront.c Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block 2015-09-02 13:10:25 -07:00
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