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| author | Dave Chinner <dchinner@redhat.com> | 2011-03-22 22:23:41 +1100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-24 21:17:51 -0400 |
| commit | a66979abad090b2765a6c6790c9fdeab996833f2 (patch) | |
| tree | e48b2d0fac8f96456286a503aeeb952620234961 /mm/filemap.c | |
| parent | 55fa6091d83160ca772fc37cebae45d42695a708 (diff) | |
| download | linux-a66979abad090b2765a6c6790c9fdeab996833f2.tar.gz linux-a66979abad090b2765a6c6790c9fdeab996833f2.tar.bz2 linux-a66979abad090b2765a6c6790c9fdeab996833f2.zip | |
fs: move i_wb_list out from under inode_lock
Protect the inode writeback list with a new global lock
inode_wb_list_lock and use it to protect the list manipulations and
traversals. This lock replaces the inode_lock as the inodes on the
list can be validity checked while holding the inode->i_lock and
hence the inode_lock is no longer needed to protect the list.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 499e9aa91450..d8b34d1a1071 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -80,8 +80,8 @@ * ->i_mutex * ->i_alloc_sem (various) * - * ->inode_lock - * ->sb_lock (fs/fs-writeback.c) + * inode_wb_list_lock + * sb_lock (fs/fs-writeback.c) * ->mapping->tree_lock (__sync_single_inode) * * ->i_mmap_lock @@ -98,9 +98,9 @@ * ->zone.lru_lock (check_pte_range->isolate_lru_page) * ->private_lock (page_remove_rmap->set_page_dirty) * ->tree_lock (page_remove_rmap->set_page_dirty) - * ->inode_lock (page_remove_rmap->set_page_dirty) + * inode_wb_list_lock (page_remove_rmap->set_page_dirty) * ->inode->i_lock (page_remove_rmap->set_page_dirty) - * ->inode_lock (zap_pte_range->set_page_dirty) + * inode_wb_list_lock (zap_pte_range->set_page_dirty) * ->inode->i_lock (zap_pte_range->set_page_dirty) * ->private_lock (zap_pte_range->__set_page_dirty_buffers) * |