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Christoph Hellwig c15227de13 block: use normal I/O path for discard requests ... prepare_discard_fn() was being called in a place where memory allocation was effectively impossible. This makes it inappropriate for all but the most trivial translations of Linux's DISCARD operation to the block command set. Additionally adding a payload there makes the ownership of the bio backing unclear as it's now allocated by the device driver and not the submitter as usual. It is replaced with QUEUE_FLAG_DISCARD which is used to indicate whether the queue supports discard operations or not. blkdev_issue_discard now allocates a one-page, sector-length payload which is the right thing for the common ATA and SCSI implementations. The mtd implementation of prepare_discard_fn() is replaced with simply checking for the request being a discard. Largely based on a previous patch from Matthew Wilcox <matthew@wil.cx> which did the prepare_discard_fn but not the different payload allocation yet. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		15 years ago
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chips	mtd: jedec_probe: add PSD4256G6V id	15 years ago
devices	Merge git://git.infradead.org/mtd-2.6	15 years ago
lpddr	[MTD] [LPDDR] qinfo_probe depends on lpddr	16 years ago
maps	Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze	15 years ago
nand	Merge git://git.infradead.org/mtd-2.6	15 years ago
onenand	mtd: onenand: make onenand/generic.c more generic	15 years ago
tests	mtd: tests: fix read buffer overflows	16 years ago
ubi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	15 years ago
Kconfig	Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze	15 years ago
Makefile	NOMMU: Present backing device capabilities for MTD chardevs	16 years ago
afs.c	mtd: afs: fix build warning	16 years ago
ar7part.c	[MTD] mtdpart: Make all partition parsers return allocated array	16 years ago
cmdlinepart.c	mtd: cmdlineparts: Use 64-bit format when printing a debug message.	16 years ago
ftl.c	trivial: mtd: add __init/__exit macros to init/exitfunctions	15 years ago
inftlcore.c	mtd: inftl: fix fold chain block number	15 years ago
inftlmount.c	[MTD] we don't need no misc devices	16 years ago
internal.h	NOMMU: Present backing device capabilities for MTD chardevs	16 years ago
mtd_blkdevs.c	block: use normal I/O path for discard requests	15 years ago
mtdbdi.c	NOMMU: Present backing device capabilities for MTD chardevs	16 years ago
mtdblock.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	15 years ago
mtdblock_ro.c	…
mtdchar.c	mtd: Fix pointer handling in compat ioctls to use compat_ptr()	16 years ago
mtdconcat.c	mtd: mtdconcat: prevent a read from eraseregions[-1]	15 years ago
mtdcore.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	15 years ago
mtdcore.h	…
mtdoops.c	[MTD] mtdoops: fix a bit of spin lock usage	16 years ago
mtdpart.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	15 years ago
mtdsuper.c	Convert obvious places to deactivate_locked_super()	16 years ago
nftlcore.c	mtd: nftl: fix offset alignments	16 years ago
nftlmount.c	[MTD] update internal API to support 64-bit device size	16 years ago
ofpart.c	mtd: ofpart: Check availability of reg property instead of name property	15 years ago
redboot.c	…
rfd_ftl.c	[MTD] remove private wrapper of endian helpers in rfd_ftl.c	16 years ago
ssfdc.c	[MTD] update internal API to support 64-bit device size	16 years ago