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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2005-05-01 08:58:56 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 08:58:56 -0700
commitffa0aea681a5f3c8aecbb86f1cfd3486043805de (patch)
treef807d29b2535a41c873c8ea7c72c5a21a2ca4694 /fs
parentb97b77cca627b2e3e6d0015e2e14b1d1c12de0c8 (diff)
downloadop-kernel-dev-ffa0aea681a5f3c8aecbb86f1cfd3486043805de.zip
op-kernel-dev-ffa0aea681a5f3c8aecbb86f1cfd3486043805de.tar.gz
[PATCH] uml - hostfs: avoid buffers
Use this: .set_page_dirty = __set_page_dirty_nobuffers, We already dropped the inclusion of <linux/buffer_head.h>, and we don't have a backing block device for this FS. "Without having looked at it, I'm sure that hostfs does not use buffer_heads. So setting your ->set_page_dirty a_op to point at __set_page_dirty_nobuffers() is a reasonable thing to do - it'll provide a slight speedup." This speedup is one less spinlock held and one less conditional branch, which isn't bad. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/hostfs/hostfs_kern.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index a88ad29..e6c63d9 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -521,7 +521,7 @@ int hostfs_commit_write(struct file *file, struct page *page, unsigned from,
static struct address_space_operations hostfs_aops = {
.writepage = hostfs_writepage,
.readpage = hostfs_readpage,
-/* .set_page_dirty = __set_page_dirty_nobuffers, */
+ .set_page_dirty = __set_page_dirty_nobuffers,
.prepare_write = hostfs_prepare_write,
.commit_write = hostfs_commit_write
};
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