| commit | d6f8bb1310d4745ff1d0c74eeacae31e2a3eeff1 | |
| author | Hugh Dickins <hugh@veritas.com> | |
| Sat, 16 Jun 2007 17:15:59 +0000 (16 10:15 -0700) | ||
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | |
| Sat, 16 Jun 2007 20:16:15 +0000 (16 13:16 -0700) | ||
| tree | 4048f434ec97b0b0415e3937c1e42be9cb6ca378 | treesnapshot (tar.gz zip) |
| parent | 30475cc12a50816f290828fb7e3cd7036cd622df | commitdiff |
i386 mm: use pte_update() in ptep_test_and_clear_dirty()
It is not safe to use pte_update_defer() in ptep_test_and_clear_young():
its only user, /proc/<pid>/clear_refs, drops pte lock before flushing TLB.
Use the safe though less efficient pte_update() paravirtop in its place.
Likewise in ptep_test_and_clear_dirty(), though that has no current use.
These are macros (header file dependency stops them from becoming inline
functions), so be more liberal with the underscores and parentheses.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It is not safe to use pte_update_defer() in ptep_test_and_clear_young():
its only user, /proc/<pid>/clear_refs, drops pte lock before flushing TLB.
Use the safe though less efficient pte_update() paravirtop in its place.
Likewise in ptep_test_and_clear_dirty(), though that has no current use.
These are macros (header file dependency stops them from becoming inline
functions), so be more liberal with the underscores and parentheses.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| include/asm-i386/pgtable.h | diffblobblamehistory |