Commit:     60573b874b03d22678614ca1e73f6b15c1b53b40
Parent:     bdb02504f473be6a785741093913ea2acd05626f
Author:     Jens Axboe <[EMAIL PROTECTED]>
AuthorDate: Wed Oct 17 13:02:33 2007 +0200
Committer:  Jens Axboe <[EMAIL PROTECTED]>
CommitDate: Wed Oct 17 13:02:33 2007 +0200

    [BLOCK] Clear sg entry before filling in blk_rq_map_sg()
    The memset() of the sg entry was originally removed, because it could
    overwrite a chain pointer. But it's quite OK to memset() it when we know
    it's a valid entry, since it can't contain a chain pointer.
    Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
 block/ll_rw_blk.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 9eabac9..1014d34 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1352,6 +1352,7 @@ new_segment:
                        sg = next_sg;
                        next_sg = sg_next(sg);
+                       memset(sg, 0, sizeof(*sg));
                        sg->page = bvec->bv_page;
                        sg->length = nbytes;
                        sg->offset = bvec->bv_offset;
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