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(parent: 1bac81f) | patch
md/raid5: don't index beyond end of array in need_this_block().
authorNeilBrown <neilb@suse.com>
Thu, 24 Sep 2015 05:25:36 +0000 (15:25 +1000)
committerNeilBrown <neilb@suse.com>
Fri, 2 Oct 2015 07:23:43 +0000 (17:23 +1000)
commit46369d3d11e454604c2f44cf431c8b90ec937f66
tree37ea9a4b0e716212bfd411f4c2d9e971ff8dc5f3tree | snapshot
parent1bac81f3a10fa3ccff8ae9b77e3e0862c189f170commit | diff
md/raid5: don't index beyond end of array in need_this_block().

When need_this_block probably shouldn't be called when there
are more than 2 failed devices, we really don't want it to try
indexing beyond the end of the failed_num[] of fdev[] arrays.

So limit the loops to at most 2 iterations.

Reported-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/raid5.c diff | blob | history
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