android_kernel_motorola_sm6225/drivers/block
Michal Belczyk 078be02b80 nbd: increase default and max request sizes
Raise the default max request size for nbd to 128KB (from 127KB) to get it
4KB aligned.  This patch also allows the max request size to be increased
(via /sys/block/nbd<x>/queue/max_sectors_kb) to 32MB.

The patch makes nbd network traffic more efficient by:
- reducing request fragmentation (4KB alignment)
- reducing the number of requests (fewer round trips, less network overhead)

Especially in high latency networks, larger request size can make a dramatic

Signed-off-by: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Michal Belczyk <belczyk@bsd.krakow.pl>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30 17:04:07 -07:00
..
aoe aoe: reserve enough headroom on skbs 2013-03-28 14:29:47 -04:00
drbd drbd: rename random32() to prandom_u32() 2013-04-29 18:28:42 -07:00
mtip32xx mtip32xx: fix two smatch warnings 2013-04-04 09:03:41 +02:00
paride drivers/block/paride: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:52:42 -08:00
rsxx rsxx: remove unused variable 2013-03-26 14:48:12 -06:00
xen-blkback xen-blkback: don't store dev_bus_addr 2013-03-19 12:50:00 -04:00
amiflop.c fs: move code out of buffer.c 2012-01-03 22:54:07 -05:00
ataflop.c block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers 2011-04-21 21:33:05 +02:00
brd.c block: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
cciss.c cciss: fix invalid use of sizeof in cciss_find_cfgtables() 2013-03-22 12:22:49 -06:00
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 cciss: fix handling of protocol error 2012-09-18 11:57:08 +02:00
cciss_scsi.h cciss: add cciss_tape_cmds module paramter 2011-05-06 08:23:59 -06:00
cpqarray.c Drivers: block: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
cpqarray.h
cryptoloop.c
DAC960.c Merge branch 'for-3.9/drivers' of git://git.kernel.dk/linux-block 2013-02-28 13:16:07 -08:00
DAC960.h
floppy.c floppy: destroy floppy workqueue before cleaning up the queue 2012-11-23 14:32:54 +01:00
hd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ida_cmd.h
ida_ioctl.h
Kconfig block: IBM RamSan 70/80 branding changes. 2013-03-11 19:53:55 +01:00
loop.c for-linus-20130409 2013-04-09 12:05:41 -07:00
Makefile Merge branch 'delete-xt-disk' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux into for-3.9/drivers 2013-02-14 16:29:34 +01:00
mg_disk.c mg_disk: fix error return code in mg_probe() 2013-03-28 09:43:43 -06:00
nbd.c nbd: increase default and max request sizes 2013-04-30 17:04:07 -07:00
nvme.c Merge git://git.infradead.org/users/willy/linux-nvme 2013-03-22 16:43:53 -07:00
osdblk.c block: Add bio_clone_bioset(), bio_clone_kmalloc() 2012-09-09 10:35:39 +02:00
pktcdvd.c pktcdvd: Switch to bio_kmalloc() 2012-09-09 10:35:39 +02:00
ps3disk.c Drivers: block: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
ps3vram.c Drivers: block: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
rbd.c rbd: do a safe list traversal in rbd_img_request_submit() 2013-04-17 11:39:09 -07:00
rbd_types.h rbd: get rid of RBD_MAX_SEG_NAME_LEN 2012-12-17 08:37:29 -06:00
smart1,2.h fix typos 'comamnd' -> 'command' in comments 2011-02-02 11:31:21 +01:00
sunvdc.c sunvdc: Fix off-by-one in generic_request(). 2013-02-14 11:49:01 -08:00
swim.c swim: Add missing spinlock init 2013-02-09 14:23:33 +01:00
swim3.c drivers/block/swim3.c: fix null pointer dereference 2013-02-22 10:42:46 +01:00
swim_asm.S
sx8.c block, sx8: fix pointer math issue getting fw version 2012-03-03 19:44:39 +01:00
umem.c Drivers: block: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
umem.h
virtio_blk.c Various minor fixes, but a slightly more complex one to fix the per-cpu overload 2013-01-20 16:44:28 -08:00
xen-blkfront.c xen-blkfront: remove frame list from blk_shadow 2013-03-19 12:50:07 -04:00
xsysace.c Drivers: block: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
z2ram.c drivers/block/z2ram.c: correct printing of sector_t 2010-10-28 06:15:26 -06:00