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authorVinayak Menon <vinayakm.list@gmail.com>2013-04-29 15:08:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:40 -0700
commit9ca24e2e19325edc3ed0b437657d26219b7a768a (patch)
treef77c807f879d8a23ababae31a9006a204d0a204a /kernel/resource.c
parentb476e2951fcf7a25574b7b193944b041687f3ed4 (diff)
downloadlinux-9ca24e2e19325edc3ed0b437657d26219b7a768a.tar.bz2
mmKconfig: add an option to disable bounce
There are times when HIGHMEM is enabled, but we don't prefer CONFIG_BOUNCE to be enabled. CONFIG_BOUNCE can reduce the block device throughput, and this is not ideal for machines where we don't gain much by enabling it. So provide an option to deselect CONFIG_BOUNCE. The observation was made while measuring eMMC throughput using iozone on an ARM device with 1GB RAM. Signed-off-by: Vinayak Menon <vinayakm.list@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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