2007-08-27 11:33:20

by Wu Fengguang

[permalink] [raw]
Subject: [PATCH 1/3] writeback: introduce queue_dirty()

Introduce queue_dirty() to enqueue a newly dirtied inode.
It helps remove duplicate code.

Signed-off-by: Fengguang Wu <[email protected]>
---
fs/fs-writeback.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)

--- linux-2.6.23-rc3-mm1.orig/fs/fs-writeback.c
+++ linux-2.6.23-rc3-mm1/fs/fs-writeback.c
@@ -24,6 +24,15 @@
#include <linux/buffer_head.h>
#include "internal.h"

+/*
+ * Enqueue a newly dirtied inode.
+ */
+static void queue_dirty(struct inode *inode)
+{
+ inode->dirtied_when = jiffies;
+ list_move(&inode->i_list, &inode->i_sb->s_dirty);
+}
+
/**
* __mark_inode_dirty - internal function
* @inode: inode to mark
@@ -121,10 +130,8 @@ void __mark_inode_dirty(struct inode *in
* If the inode was already on s_dirty/s_io/s_more_io, don't
* reposition it (that would break s_dirty time-ordering).
*/
- if (!was_dirty) {
- inode->dirtied_when = jiffies;
- list_move(&inode->i_list, &sb->s_dirty);
- }
+ if (!was_dirty)
+ queue_dirty(inode);
}
out:
spin_unlock(&inode_lock);
@@ -466,10 +473,8 @@ int generic_sync_sb_inodes(struct super_
err = __writeback_single_inode(inode, wbc);
if (!ret)
ret = err;
- if (wbc->sync_mode == WB_SYNC_HOLD) {
- inode->dirtied_when = jiffies;
- list_move(&inode->i_list, &sb->s_dirty);
- }
+ if (wbc->sync_mode == WB_SYNC_HOLD)
+ queue_dirty(inode);
if (current_is_pdflush())
writeback_release(bdi);
if (wbc->pages_skipped != pages_skipped) {

--