Christoph Hellwig 66ac028019 block: don't allocate a payload for discard request ... Allocating a fixed payload for discard requests always was a horrible hack, and it's not coming to byte us when adding support for discard in DM/MD. So change the code to leave the allocation of a payload to the lowlevel driver. Unfortunately that means we'll need another hack, which allows us to update the various block layer length fields indicating that we have a payload. Instead of hiding this in sd.c, which we already partially do for UNMAP support add a documented helper in the core block layer for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2010-08-07 18:23:08 +02:00
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acpi	ACPI: skip checking BM_STS if the BIOS doesn't ask for it	2010-07-22 16:54:27 -04:00
asm-generic	Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2010-07-23 13:26:16 -07:00
crypto
drm
keys
linux	block: don't allocate a payload for discard request	2010-08-07 18:23:08 +02:00
math-emu
media
mtd
net	net sched: fix race in mirred device removal	2010-07-24 21:04:20 -07:00
pcmcia
rdma
rxrpc
scsi
sound
trace	block: remove wrappers for request type/flags	2010-08-07 18:17:56 +02:00
video
xen
Kbuild