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(parent: e444f95) | patch
block: avoid unnecessary plug list flush
authorShaohua Li <shaohua.li@intel.com>
Tue, 8 Nov 2011 00:20:07 +0000 (11:20 +1100)
committerStephen Rothwell <sfr@canb.auug.org.au>
Mon, 14 Nov 2011 02:58:34 +0000 (13:58 +1100)
commitcdd3c2b4a331354371cb718cbaee89c71df42773
treea1aca4ac3d6a2d1b6b22e9b50fe7c1d25d7a1fa4tree | snapshot
parente444f951e3ac61eef72f4ca4222b5d8a1394620acommit | diff
block: avoid unnecessary plug list flush

get_request_wait() could sleep and flush the plug list.  If the list is
already flushed, don't flush again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
block/blk-core.c diff | blob | history
Linux kernel for KaRo TX COM modules