futex: fix handling of read-only-mapped hugepages
The hugepage code had the exact same bug that regular pages had in commit 7485d0d3 ("futexes: Remove rw parameter from get_futex_key()"). The regular page case was fixed by commit 9ea71503 ("futex: Fix regression with read only mappings"), but the transparent hugepage case (added in a5b338f2 : "thp: update futex compound knowledge") case remained broken. Found by Dave Jones and his trinity tool. Reported-and-tested-by:Dave Jones <davej@fedoraproject.org> Cc: stable@kernel.org # v2.6.38+ Acked-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Mel Gorman <mgorman@suse.de> Cc: Darren Hart <dvhart@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
parent
9538e100
Please register or sign in to comment