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authorHugh Dickins <hugh@veritas.com>2005-11-23 16:37:39 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-23 19:08:38 -0500
commit01edcd891c3e9f4bb992ff2ceb69836bf76f8ddf (patch)
tree3b8ab4808220d1caaf3ba34db16917f71b852a08 /arch/powerpc/mm/mem.c
parentcc3327e7dfc16a9a3e164075234c869867a59e45 (diff)
[PATCH] mm: powerpc ptlock comments
Update comments (only) on page_table_lock and mmap_sem in arch/powerpc. Removed the comment on page_table_lock from hash_huge_page: since it's no longer taking page_table_lock itself, it's irrelevant whether others are; but how it is safe (even against huge file truncation?) I can't say. Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r--arch/powerpc/mm/mem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 4bd7b0a70996..ed6ed2e30dac 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -495,7 +495,7 @@ EXPORT_SYMBOL(flush_icache_user_range);
495 * We use it to preload an HPTE into the hash table corresponding to 495 * We use it to preload an HPTE into the hash table corresponding to
496 * the updated linux PTE. 496 * the updated linux PTE.
497 * 497 *
498 * This must always be called with the mm->page_table_lock held 498 * This must always be called with the pte lock held.
499 */ 499 */
500void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, 500void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
501 pte_t pte) 501 pte_t pte)