Sergey Senozhatsky d93435c3fb zram: check comp algorithm availability earlier ... Improvement idea by Marcin Jabrzyk. comp_algorithm_store() silently accepts any supplied algorithm name, because zram performs algorithm availability check later, during the device configuration phase in disksize_store() and emits the following error: "zram: Cannot initialise %s compressing backend" this error line is somewhat generic and, besides, can indicate a failed attempt to allocate compression backend's working buffers. add algorithm availability check to comp_algorithm_store(): echo lzz > /sys/block/zram0/comp_algorithm -bash: echo: write error: Invalid argument Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reported-by: Marcin Jabrzyk <m.jabrzyk@samsung.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-06-25 17:00:37 -07:00
..
aoe	block: remove artifical max_hw_sectors cap	2014-10-21 14:02:54 -06:00
drbd	net: Add a struct net parameter to sock_create_kern	2015-05-11 10:50:17 -04:00
mtip32xx	blk-mq: add a 'list' parameter to ->queue_rq()	2014-10-29 11:14:52 -06:00
paride	paride: fix the "verbose" module param	2015-04-15 16:35:22 -07:00
rsxx	block/rsxx: use generic io stats accounting functions to simplify io stat accounting	2014-11-24 08:05:18 -07:00
xen-blkback	xen/grant: introduce func gnttab_unmap_refs_sync()	2015-04-27 11:41:12 +01:00
zram	zram: check comp algorithm availability earlier	2015-06-25 17:00:37 -07:00
DAC960.c	block: use pci_zalloc_consistent	2014-08-08 15:57:28 -07:00
DAC960.h	…
Kconfig	block: pmem: Add dependency on HAS_IOMEM	2015-06-11 15:54:58 -06:00
Makefile	drivers/block/pmem: Add a driver for persistent memory	2015-04-01 17:03:56 +02:00
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	brd: rename XIP to DAX	2015-02-16 17:56:04 -08:00
cciss.c	cciss: correct the non-resettable board list	2015-05-31 11:14:34 -07:00
cciss.h	cciss: Adds simple mode functionality	2011-08-08 11:40:15 +02:00
cciss_cmd.h	cciss: use new doorbell-bit-5 reset method	2011-05-06 08:23:55 -06:00
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: add cciss_tape_cmds module paramter	2011-05-06 08:23:59 -06:00
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
floppy.c	floppy: Avoid manual call of device_create_file()	2015-02-03 13:00:36 +01:00
hd.c	block: hd: remove deprecated IRQF_DISABLED	2014-10-01 08:16:07 -06:00
ida_cmd.h	…
ida_ioctl.h	…
loop.c	block: destroy bdi before blockdev is unregistered.	2015-04-27 10:27:20 -06:00
loop.h	loop: add blk-mq.h include	2015-01-02 15:20:25 -07:00
mg_disk.c	block: drop owner assignment from platform_drivers	2014-10-20 16:20:18 +02:00
nbd.c	nbd: Return error pointer directly	2015-04-02 12:39:28 -06:00
null_blk.c	null_blk: suppress invalid partition info	2015-01-16 16:02:24 -07:00
nvme-core.c	NVMe: fix type warning on 32-bit	2015-05-29 10:06:21 -06:00
nvme-scsi.c	nvme: fix kernel memory corruption with short INQUIRY buffers	2015-05-13 10:22:12 -04:00
osdblk.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
pktcdvd.c	block,scsi: fixup blk_get_request dead queue scenarios	2014-08-28 10:03:46 -06:00
pmem.c	drivers/block/pmem: Map NVDIMM in Write-Through mode	2015-06-07 15:29:01 +02:00
ps3disk.c	block: Kill bio_segments()/bi_vcnt usage	2013-11-23 22:33:51 -08:00
ps3vram.c	block: Convert bio_for_each_segment() to bvec_iter	2013-11-23 22:33:49 -08:00
rbd.c	rbd: end I/O the entire obj_request on error	2015-05-01 16:44:30 -07:00
rbd_types.h	rbd: get rid of RBD_MAX_SEG_NAME_LEN	2012-12-17 08:37:29 -06:00
skd_main.c	block: disable entropy contributions for nonrot devices	2014-10-04 10:55:32 -06:00
skd_s1120.h	skd: fix formatting in skd_s1120.h	2013-11-08 09:10:30 -07:00
smart1,2.h	fix typos 'comamnd' -> 'command' in comments	2011-02-02 11:31:21 +01:00
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	block,scsi: fixup blk_get_request dead queue scenarios	2014-08-28 10:03:46 -06:00
umem.c	block: Convert drivers to immutable biovecs	2013-11-23 22:33:51 -08:00
umem.h	…
virtio_blk.c	sd, mmc, virtio_blk, string_helpers: fix block size units	2015-04-10 16:27:48 -07:00
xen-blkfront.c	xenbus_client: Extend interface to support multi-page ring	2015-04-15 10:56:47 +01:00
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