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| author | Hugh Dickins <hugh@veritas.com> | 2005-11-23 22:37:39 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-24 01:08:38 +0100 |
| commit | 01edcd891c3e9f4bb992ff2ceb69836bf76f8ddf (patch) | |
| tree | 3b8ab4808220d1caaf3ba34db16917f71b852a08 /arch/powerpc/mm/hugetlbpage.c | |
| parent | [PATCH] mm: unbloat get_futex_key (diff) | |
| download | linux-01edcd891c3e9f4bb992ff2ceb69836bf76f8ddf.tar.xz linux-01edcd891c3e9f4bb992ff2ceb69836bf76f8ddf.zip | |
[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/hugetlbpage.c')
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 426c269e552e..9250f14be8ef 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -754,9 +754,7 @@ repeat: } /* - * No need to use ldarx/stdcx here because all who - * might be updating the pte will hold the - * page_table_lock + * No need to use ldarx/stdcx here */ *ptep = __pte(new_pte & ~_PAGE_BUSY); |