Ilya Dryomov 0ccd592669 rbd: prefix rbd writes with CEPH_OSD_OP_SETALLOCHINT osd op ... In an effort to reduce fragmentation, prefix every rbd write with a CEPH_OSD_OP_SETALLOCHINT osd op with an expected_write_size value set to the object size (1 << order). Backwards compatibility is taken care of on the libceph/osd side. "The CEPH_OSD_OP_SETALLOCHINT hint is durable, in that it's enough to do it once. The reason every rbd write is prefixed is that rbd doesn't explicitly create objects and relies on writes creating them implicitly, so there is no place to stick a single hint op into. To get around that we decided to prefix every rbd write with a hint (just like write and setattr ops, hint op will create an object implicitly if it doesn't exist)." Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>		2014-04-03 10:33:52 +08:00
..
aoe	mm: close PageTail race	2014-03-04 07:55:47 -08:00
drbd	block: Immutable bio vecs	2013-11-23 22:33:49 -08:00
mtip32xx	mtip32xx: fix bad use of smp_processor_id()	2014-03-10 14:32:47 -06:00
paride	drivers/block/paride/pg.c: underflow bug in pg_write()	2014-01-21 20:16:56 -08:00
rsxx	block: Convert bio_for_each_segment() to bvec_iter	2013-11-23 22:33:49 -08:00
xen-blkback	xen-blkback: init persistent_purge_work work_struct	2014-02-11 20:34:03 -07:00
zram	zram: avoid null access when fail to alloc meta	2014-03-04 07:55:49 -08:00
amiflop.c	tree-wide: use reinit_completion instead of INIT_COMPLETION	2013-11-15 09:32:21 +09:00
ataflop.c	block_device_operations->release() should return void	2013-05-07 02:16:21 -04:00
brd.c	block: Convert bio_for_each_segment() to bvec_iter	2013-11-23 22:33:49 -08:00
cciss_cmd.h	cciss: use new doorbell-bit-5 reset method	2011-05-06 08:23:55 -06:00
cciss_scsi.c	cciss: switch to ->show_info()	2013-04-09 14:13:19 -04:00
cciss_scsi.h	cciss: add cciss_tape_cmds module paramter	2011-05-06 08:23:59 -06:00
cciss.c	drivers/block/cciss.c:cciss_init_one(): use proper errnos	2014-01-21 20:16:56 -08:00
cciss.h	cciss: Adds simple mode functionality	2011-08-08 11:40:15 +02:00
cpqarray.c	cpqarray: fix info leak in ida_locked_ioctl()	2013-09-24 17:00:26 -07:00
cpqarray.h
cryptoloop.c	move linux/loop.h to drivers/block	2013-06-29 12:46:45 +04:00
DAC960.c	procfs: new helper - PDE_DATA(inode)	2013-04-09 14:13:32 -04:00
DAC960.h
floppy.c	floppy: bail out in open() if drive is not responding to block0 read	2014-01-17 11:12:06 +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	zram: promote zram from staging	2014-01-30 16:56:55 -08:00
loop.c	drivers/block/loop.c: fix comment typo in loop_config_discard	2014-01-21 20:16:56 -08:00
loop.h	move linux/loop.h to drivers/block	2013-06-29 12:46:45 +04:00
Makefile	zram: promote zram from staging	2014-01-30 16:56:55 -08:00
mg_disk.c	mg_disk: Spelling s/finised/finished/	2014-01-21 20:34:58 -08:00
nbd.c	block: Immutable bio vecs	2013-11-23 22:33:49 -08:00
null_blk.c	null_blk: use blk_complete_request and blk_mq_complete_request	2014-02-10 09:27:31 -07:00
nvme-core.c	Merge git://git.infradead.org/users/willy/linux-nvme	2014-02-05 15:53:26 -08:00
nvme-scsi.c	NVMe: compat SG_IO ioctl	2013-12-16 15:49:40 -05:00
osdblk.c	block: replace strict_strtoul() with kstrtoul()	2013-09-11 15:56:56 -07:00
pktcdvd.c	pktcdvd: fix error return code	2014-01-03 10:05:34 +01:00
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_types.h	rbd: get rid of RBD_MAX_SEG_NAME_LEN	2012-12-17 08:37:29 -06:00
rbd.c	rbd: prefix rbd writes with CEPH_OSD_OP_SETALLOCHINT osd op	2014-04-03 10:33:52 +08:00
skd_main.c	drivers: block: Mark the functions as static in skd_main.c	2013-12-19 08:06:49 -07:00
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: Fix off-by-one in generic_request().	2013-02-14 11:49:01 -08:00
swim3.c	block_device_operations->release() should return void	2013-05-07 02:16:21 -04:00
swim_asm.S	m68k: mac - Add SWIM floppy support	2009-03-26 21:15:27 +01:00
swim.c	drivers/block/swim.c: remove unnecessary platform_set_drvdata()	2013-09-11 15:56:59 -07:00
sx8.c	drivers/block/sx8.c: remove unnecessary pci_set_drvdata()	2014-01-21 20:16:56 -08:00
umem.c	block: Convert drivers to immutable biovecs	2013-11-23 22:33:51 -08:00
umem.h
virtio_blk.c	virtio_blk: use blk_mq_complete_request	2014-02-10 09:27:31 -07:00
xen-blkfront.c	Merge branch 'stable/for-jens-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip into for-linus	2014-02-10 12:52:34 -07:00
xsysace.c	xilinx systemace: Fix sparse warnings	2013-07-10 07:47:12 +02:00
z2ram.c	block/z2ram: Remove duplicate external declarations	2013-11-26 11:09:10 +01:00