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linux/block
Greg Edwards bbab86e891 block: bvec_nr_vecs() returns value for wrong slab
[ Upstream commit d6c02a9beb ]

In commit ed996a52c8 ("block: simplify and cleanup bvec pool
handling"), the value of the slab index is incremented by one in
bvec_alloc() after the allocation is done to indicate an index value of
0 does not need to be later freed.

bvec_nr_vecs() was not updated accordingly, and thus returns the wrong
value.  Decrement idx before performing the lookup.

Fixes: ed996a52c8 ("block: simplify and cleanup bvec pool handling")
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-15 09:42:59 +02:00
..
2016-04-13 13:33:19 -06:00
2016-09-15 08:42:03 -06:00
2016-08-16 09:16:51 -06:00