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| author | Christoph Lameter <clameter@sgi.com> | 2006-03-29 10:54:38 +0400 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-04-08 10:08:16 +0400 |
| commit | 0ffe984917b9cd6ecc19ffbc06f35869d8c18df8 (patch) | |
| tree | 49b54ea585dcd657083c8b755726820b002ae75a /drivers/media/video/cpia.h | |
| parent | 8cab7ccccbdd9fe3cf6b3400d5a88ecb683a5b1b (diff) | |
| download | linux-0ffe984917b9cd6ecc19ffbc06f35869d8c18df8.tar.xz | |
[IA64] Prefetch mmap_sem in ia64_do_page_fault()
Take a hint from an x86_64 optimization by Arjan van de Ven and use it
for ia64. See a9ba9a3b3897561d01e04cd21433746df46548c0
Prefetch the mmap_sem, which is critical for the performance of the page fault
handler.
Note: mm may be NULL but I guess that is safe.
See 458f935527372499b714bf4f8e646a68bb0f52e3
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/media/video/cpia.h')
0 files changed, 0 insertions, 0 deletions