diff options
| author | Hugh Dickins <hugh@veritas.com> | 2005-10-30 02:16:24 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-30 05:40:40 +0100 |
| commit | b462705ac679f6195d1b23a752cda592d9107495 (patch) | |
| tree | c4d9be08f67b0ffdc66c3e170614bd03945f3c42 /drivers/net/defxx.h | |
| parent | [PATCH] mm: ptd_alloc take ptlock (diff) | |
| download | linux-b462705ac679f6195d1b23a752cda592d9107495.tar.xz linux-b462705ac679f6195d1b23a752cda592d9107495.zip | |
[PATCH] mm: arches skip ptlock
Convert those few architectures which are calling pud_alloc, pmd_alloc,
pte_alloc_map on a user mm, not to take the page_table_lock first, nor drop it
after. Each of these can continue to use pte_alloc_map, no need to change
over to pte_alloc_map_lock, they're neither racy nor swappable.
In the sparc64 io_remap_pfn_range, flush_tlb_range then falls outside of the
page_table_lock: that's okay, on sparc64 it's like flush_tlb_mm, and that has
always been called from outside of page_table_lock in dup_mmap.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/net/defxx.h')
0 files changed, 0 insertions, 0 deletions