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(parent: b860319) | 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>
Tue, 8 Nov 2011 03:15:57 +0000 (14:15 +1100)
commit360bb7788ee4577f787a63fa1168bdd7ba5910c5
tree083903607545b6741d9cc6d6f8e102dc8ebba468tree | snapshot
parentb8603197ac2b45a999c9afc8cee860c052a0dc48commit | 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