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authorJens Axboe2008-12-23 05:42:54 -0600
committerJens Axboe2008-12-29 01:29:50 -0600
commit392ddc32982a5c661dd90dd49a3cb37f1c68b782 (patch)
tree614b8e857a70ce479bcbbf24af66a56b7723efc8 /block/noop-iosched.c
parentbb799ca0202a360fa74d5f17039b9100caebdde7 (diff)
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bio: add support for inlining a number of bio_vecs inside the bio
When we go and allocate a bio for IO, we actually do two allocations. One for the bio itself, and one for the bi_io_vec that holds the actual pages we are interested in. This feature inlines a definable amount of io vecs inside the bio itself, so we eliminate the bio_vec array allocation for IO's up to a certain size. It defaults to 4 vecs, which is typically 16k of IO. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/noop-iosched.c')
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