tree fc39bc1e04e063f8c5eda29f79d33a3194bb56fc
parent 5cd307c5655c0b76d563b5f3f911742a32746841
author Heinz Mauelshagen <hjm@redhat.com> 1165574461 -0800
committer Linus Torvalds <torvalds@woody.osdl.org> 1165595348 -0800

[PATCH] dm io: fix bi_max_vecs

The existing code allocates an extra slot in bi_io_vec[] and uses it to store
the region number.

This patch hides the extra slot from bio_add_page() so the region number can't
get overwritten.

Also remove a hard-coded SECTOR_SHIFT and fix a typo in a comment.

Signed-off-by: Heinz Mauelshagen <hjm@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Milan Broz <mbroz@redhat.com>
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>