From 1b1dcc1b57a49136f118a0f16367256ff9994a69 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Mon, 9 Jan 2006 15:59:24 -0800 Subject: [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem This patch converts the inode semaphore to a mutex. I have tested it on XFS and compiled as much as one can consider on an ia64. Anyway your luck with it might be different. Modified-by: Ingo Molnar (finished the conversion) Signed-off-by: Jes Sorensen Signed-off-by: Ingo Molnar --- mm/rmap.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'mm/rmap.c') diff --git a/mm/rmap.c b/mm/rmap.c index 66ec43053a4d..dfbb89f99a15 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -20,13 +20,13 @@ /* * Lock ordering in mm: * - * inode->i_sem (while writing or truncating, not reading or faulting) + * inode->i_mutex (while writing or truncating, not reading or faulting) * inode->i_alloc_sem * * When a page fault occurs in writing from user to file, down_read - * of mmap_sem nests within i_sem; in sys_msync, i_sem nests within - * down_read of mmap_sem; i_sem and down_write of mmap_sem are never - * taken together; in truncation, i_sem is taken outermost. + * of mmap_sem nests within i_mutex; in sys_msync, i_mutex nests within + * down_read of mmap_sem; i_mutex and down_write of mmap_sem are never + * taken together; in truncation, i_mutex is taken outermost. * * mm->mmap_sem * page->flags PG_locked (lock_page) -- cgit v1.2.3-59-g8ed1b