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| author | Hugh Dickins <hugh@veritas.com> | 2005-06-21 17:15:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 18:46:19 -0700 |
| commit | 91612e0df20a52f61db3cac280c153311b36df7a (patch) | |
| tree | 44a19e1d03147aabb842cbaac493a7213b836e4a /drivers/cdrom/isp16.c | |
| parent | 941150a326be88af245034ef4b3e9fa00229aa2d (diff) | |
| download | op-kernel-dev-91612e0df20a52f61db3cac280c153311b36df7a.zip op-kernel-dev-91612e0df20a52f61db3cac280c153311b36df7a.tar.gz | |
[PATCH] mbind: check_range use standard ptwalk
Strict mbind's check for currently mapped pages being on node has been
using a slow loop which re-evaluates pgd, pud, pmd, pte for each entry:
replace that by a standard four-level page table walk like others in mm.
Since mmap_sem is held for writing, page_table_lock can be taken at the
inner level to limit latency.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/cdrom/isp16.c')
0 files changed, 0 insertions, 0 deletions
