tree 01b5114255fcf1ea8ea15fabe08cc9782131e684
parent c64610ba585fabb36be78782868277f3d9741a2e
author Kirill Korotaev <dev@sw.ru> 1116305630 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1116341960 -0700

[PATCH] do_swap_page() can map random data if swap read fails

There is a bug in do_swap_page(): when swap page happens to be unreadable,
page filled with random data is mapped into user address space.  The fix is
to check for PageUptodate and send SIGBUS in case of error.

Signed-Off-By: Kirill Korotaev <dev@sw.ru>
Signed-Off-By: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>