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authorJens Axboe <axboe@suse.de>2006-06-14 13:11:57 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-14 13:22:16 -0400
commit553698f944ed715dfe023b4cef07601f0ce735f0 (patch)
tree2c9019e43218a3afc92fbb32a44de794123295f4 /block/Makefile
parent9cedc194a7735e5d74ad26d3825247dc65a4d98e (diff)
[PATCH] cfq-iosched: fix crash in do_div()
We don't clear the seek stat values in cfq_alloc_io_context(), and if ->seek_mean is unlucky enough to be set to -36 by chance, the first invocation of cfq_update_io_seektime() will oops with a divide by zero in do_div(). Just memset the entire cic instead of filling invididual values independently. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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