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authorJens Axboe <jens.axboe@oracle.com>2009-09-02 12:34:32 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-09-11 09:20:25 +0200
commitd8a8559cd7a9ccac98d5f6f13297a2ff68a43627 (patch)
tree165e02117205e9790c21b2facc130b23addf3775 /fs/sync.c
parent0d03d59d9b31cd1e33b7e46a80b6fef66244b1f2 (diff)
downloadop-kernel-dev-d8a8559cd7a9ccac98d5f6f13297a2ff68a43627.zip
op-kernel-dev-d8a8559cd7a9ccac98d5f6f13297a2ff68a43627.tar.gz
writeback: get rid of generic_sync_sb_inodes() export
This adds two new exported functions: - writeback_inodes_sb(), which only attempts to writeback dirty inodes on this super_block, for WB_SYNC_NONE writeout. - sync_inodes_sb(), which writes out all dirty inodes on this super_block and also waits for the IO to complete. Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/sync.c')
-rw-r--r--fs/sync.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/sync.c b/fs/sync.c
index 3422ba6..66f2104 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -19,20 +19,22 @@
SYNC_FILE_RANGE_WAIT_AFTER)
/*
- * Do the filesystem syncing work. For simple filesystems sync_inodes_sb(sb, 0)
- * just dirties buffers with inodes so we have to submit IO for these buffers
- * via __sync_blockdev(). This also speeds up the wait == 1 case since in that
- * case write_inode() functions do sync_dirty_buffer() and thus effectively
- * write one block at a time.
+ * Do the filesystem syncing work. For simple filesystems
+ * writeback_inodes_sb(sb) just dirties buffers with inodes so we have to
+ * submit IO for these buffers via __sync_blockdev(). This also speeds up the
+ * wait == 1 case since in that case write_inode() functions do
+ * sync_dirty_buffer() and thus effectively write one block at a time.
*/
static int __sync_filesystem(struct super_block *sb, int wait)
{
/* Avoid doing twice syncing and cache pruning for quota sync */
- if (!wait)
+ if (!wait) {
writeout_quota_sb(sb, -1);
- else
+ writeback_inodes_sb(sb);
+ } else {
sync_quota_sb(sb, -1);
- sync_inodes_sb(sb, wait);
+ sync_inodes_sb(sb);
+ }
if (sb->s_op->sync_fs)
sb->s_op->sync_fs(sb, wait);
return __sync_blockdev(sb->s_bdev, wait);
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