lightnvm: pblk: use vmalloc for GC data buffer

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For now, we allocate a per I/O buffer for GC data. Since the potential
size of the buffer is 256KB and GC is not in the fast path, do this
allocation with vmalloc. This puts lets pressure on the memory
allocator at no performance cost.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Javier González 2017-06-30 17:56:39 +02:00 • committed by Jens Axboe

parent 8224cbd80b

commit de54e703a4

5 changed files with 14 additions and 12 deletions

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9

drivers/lightnvm/pblk-core.c

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6

drivers/lightnvm/pblk-gc.c

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4

drivers/lightnvm/pblk-read.c

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3

drivers/lightnvm/pblk-write.c

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4

drivers/lightnvm/pblk.h

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