Gerald Schaefer
8fe627ec5b
hugetlbfs: add missing TLB flush to hugetlb_cow() ...
A cow break on a hugetlbfs page with page_count > 1 will set a new pte with
set_huge_pte_at(), w/o any tlb flush operation. The old pte will remain in
the tlb and subsequent write access to the page will result in a page fault
loop, for as long as it may take until the tlb is flushed from somewhere else.
This patch introduces an architecture-specific huge_ptep_clear_flush()
function, which is called before the the set_huge_pte_at() in hugetlb_cow().
ATTENTION: This is just a nop on all architectures for now, the s390
implementation will come with our large page patch later. Other architectures
should define their own huge_ptep_clear_flush() if needed.
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:25 -07:00
2008-04-15 21:21:25 +10:00
2007-12-20 16:17:44 +11:00
2008-02-08 09:22:29 -08:00
2008-02-13 16:56:49 -08:00
2008-01-30 13:34:07 +01:00
2007-08-17 11:01:58 +10:00
2008-04-26 19:21:16 +02:00
2007-07-31 21:12:07 -07:00
2007-07-10 22:00:56 +10:00
2007-10-09 21:01:56 +10:00
2007-10-03 09:11:56 +10:00
2008-02-03 16:32:51 +02:00
2008-04-17 01:01:37 -05:00
2008-04-17 01:01:37 -05:00
2008-04-17 01:01:37 -05:00
2008-02-05 23:34:14 -06:00
2008-02-26 22:17:03 +11:00
2008-02-06 10:41:00 -08:00
2007-10-15 14:29:49 -04:00
2008-03-26 07:20:38 -05:00
2008-03-26 07:27:54 -05:00
2008-01-31 12:11:09 +11:00
2008-02-06 10:41:02 -08:00
2008-02-07 20:40:18 +11:00
2008-04-18 15:38:47 +10:00
2007-07-17 10:23:11 -07:00
2007-12-11 13:34:40 +11:00
2008-04-24 20:58:02 +10:00
2007-10-17 08:42:55 -07:00
2007-10-11 09:14:31 -05:00
2008-04-17 01:01:38 -05:00
2008-04-17 07:46:11 +10:00
2008-04-24 20:58:02 +10:00
2008-04-28 08:58:25 -07:00
2007-07-11 13:24:40 +10:00
2008-04-18 15:38:47 +10:00
2007-08-22 22:43:29 -05:00
2007-10-17 22:30:08 +10:00
2008-04-18 00:46:35 +02:00
2007-12-11 13:57:18 -06:00
2007-10-04 11:02:04 -05:00
2008-04-17 01:01:39 -05:00
2008-04-24 21:08:12 +10:00
2008-04-24 21:08:12 +10:00
2008-02-05 09:44:11 -08:00
2007-12-11 13:57:18 -06:00
2008-01-28 09:19:16 -06:00
2008-04-18 15:38:47 +10:00
2008-03-26 08:44:07 +11:00
2007-10-16 09:42:50 -07:00
2008-04-24 20:58:01 +10:00
2008-01-25 22:52:50 +11:00
2007-08-22 22:43:29 -05:00
2008-03-04 16:35:11 -08:00
2008-04-27 18:21:39 +03:00
2008-04-27 18:21:39 +03:00
2008-04-27 18:21:39 +03:00
2008-04-27 18:21:39 +03:00
2008-04-27 18:21:39 +03:00
2008-04-17 07:46:13 +10:00
2007-05-08 11:15:20 -07:00
2007-06-14 22:29:58 +10:00
2007-06-28 19:16:38 +10:00
2008-04-17 10:01:00 +10:00
2008-04-15 21:21:26 +10:00
2008-04-18 00:46:23 +02:00
2007-10-19 11:53:41 -07:00
2008-04-17 07:46:14 +10:00
2008-04-17 07:46:14 +10:00
2008-04-27 18:21:37 +03:00
2008-04-17 07:46:14 +10:00
2008-04-17 07:46:14 +10:00
2008-04-17 07:46:14 +10:00
2007-08-20 07:28:48 -05:00
2007-05-10 21:28:13 +10:00
2008-01-28 08:31:04 -06:00
2008-02-06 14:05:40 -07:00
2008-01-26 15:32:18 -07:00
2007-06-29 01:56:43 -05:00
2008-02-06 14:03:10 -07:00
2008-01-23 19:34:43 -06:00
2007-12-28 09:22:25 -06:00
2008-02-05 09:44:08 -08:00
2007-10-17 22:30:07 +10:00
2008-01-25 07:07:26 -06:00
2008-02-05 23:34:14 -06:00
2008-04-24 20:58:04 +10:00
2008-04-24 20:58:01 +10:00
2008-04-28 08:58:25 -07:00
2008-04-24 20:58:01 +10:00
2007-05-08 11:15:05 -07:00
2008-03-05 16:34:39 -06:00
2008-04-18 15:37:14 +10:00
2007-12-20 16:18:09 +11:00
2008-02-23 12:09:28 -08:00
2008-02-08 09:22:42 -08:00
2008-02-08 09:22:42 -08:00
2007-09-19 15:25:34 +10:00
2008-01-24 10:06:01 +11:00
2008-04-28 08:58:23 -07:00
2008-04-28 08:58:23 -07:00
2007-06-14 22:30:15 +10:00
2008-04-17 07:46:14 +10:00
2008-02-08 19:52:35 +11:00
2008-04-15 21:21:25 +10:00
2007-05-11 08:29:34 -07:00
2008-02-08 09:22:34 -08:00
2008-04-02 20:44:56 -05:00
2007-09-14 08:53:36 -05:00
2007-12-11 13:42:32 +11:00
2008-02-08 09:22:29 -08:00
2007-12-11 15:43:35 +11:00
2008-04-01 20:43:08 +11:00
2008-02-06 10:41:17 -08:00
2007-06-28 19:16:42 +10:00
2007-06-28 19:19:20 +10:00
2008-04-18 15:37:18 +10:00
2007-10-08 08:38:57 -05:00
2008-04-17 01:01:39 -05:00
2008-02-05 23:34:14 -06:00
2008-02-05 23:34:14 -06:00
2008-03-03 08:03:14 +01:00
2007-05-09 23:28:17 -05:00
2007-12-03 09:39:45 +11:00
2008-04-18 15:38:47 +10:00
2007-10-22 21:20:03 +02:00
2008-04-17 10:42:34 -04:00
2008-01-25 22:52:50 +11:00
2007-10-16 09:42:50 -07:00
2007-12-20 16:17:44 +11:00
2008-01-31 19:27:19 -08:00
2008-04-01 20:43:08 +11:00
2008-04-18 15:38:47 +10:00
2007-12-21 19:46:20 +11:00
2007-12-21 19:45:05 +11:00
2008-02-20 14:57:36 +11:00
2008-04-07 10:03:03 +10:00
2007-06-14 22:29:57 +10:00
2008-02-14 22:11:01 +11:00
2008-04-20 17:57:10 +10:00
2007-07-10 22:03:29 +10:00
2008-04-24 20:57:33 +10:00
2007-12-06 16:08:59 +11:00
2007-10-03 12:02:43 +10:00
2007-11-09 03:51:14 -06:00
2008-04-19 19:44:58 +02:00
2007-05-17 21:10:15 +10:00
2007-05-17 21:10:15 +10:00
2007-05-08 11:54:20 +10:00
2008-04-17 07:46:14 +10:00
2007-10-08 08:38:15 -05:00
2007-10-08 08:38:15 -05:00
2007-12-23 13:13:03 -06:00
2008-02-14 22:11:01 +11:00
2008-02-07 08:42:30 -08:00
2007-11-20 13:56:31 +11:00
2008-02-06 16:30:00 +11:00
2007-10-03 07:23:14 -05:00
8fe627ec5b