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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 10:07:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 10:07:27 -0700
commit529b73fc0a9764050dcc597f4851728e8ff59165 (patch)
treed22dc4bf4d7523ea1c41790f8e52805b4ea75f19 /fs/fs-writeback.c
parent69e1aaddd63104f37021d0b0f6abfd9623c9134c (diff)
parent697e6fed9fc620eb6c79ebcfe6865b66773c0221 (diff)
downloadop-kernel-dev-529b73fc0a9764050dcc597f4851728e8ff59165.zip
op-kernel-dev-529b73fc0a9764050dcc597f4851728e8ff59165.tar.gz
Merge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
Pull trivial writeback fixes from Wu Fengguang: "They've been tested in linux-next for 20 days actually." * tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: Remove outdated comment fs: Remove bogus wait in write_inode_now()
Diffstat (limited to 'fs/fs-writeback.c')
-rw-r--r--fs/fs-writeback.c22
1 files changed, 2 insertions, 20 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 236972b..539f36c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -256,7 +256,8 @@ static bool inode_dirtied_after(struct inode *inode, unsigned long t)
}
/*
- * Move expired dirty inodes from @delaying_queue to @dispatch_queue.
+ * Move expired (dirtied after work->older_than_this) dirty inodes from
+ * @delaying_queue to @dispatch_queue.
*/
static int move_expired_inodes(struct list_head *delaying_queue,
struct list_head *dispatch_queue,
@@ -1148,23 +1149,6 @@ out_unlock_inode:
}
EXPORT_SYMBOL(__mark_inode_dirty);
-/*
- * Write out a superblock's list of dirty inodes. A wait will be performed
- * upon no inodes, all inodes or the final one, depending upon sync_mode.
- *
- * If older_than_this is non-NULL, then only write out inodes which
- * had their first dirtying at a time earlier than *older_than_this.
- *
- * If `bdi' is non-zero then we're being asked to writeback a specific queue.
- * This function assumes that the blockdev superblock's inodes are backed by
- * a variety of queues, so all inodes are searched. For other superblocks,
- * assume that all inodes are backed by the same queue.
- *
- * The inodes to be written are parked on bdi->b_io. They are moved back onto
- * bdi->b_dirty as they are selected for writing. This way, none can be missed
- * on the writer throttling path, and we get decent balancing between many
- * throttled threads: we don't want them all piling up on inode_sync_wait.
- */
static void wait_sb_inodes(struct super_block *sb)
{
struct inode *inode, *old_inode = NULL;
@@ -1364,8 +1348,6 @@ int write_inode_now(struct inode *inode, int sync)
ret = writeback_single_inode(inode, wb, &wbc);
spin_unlock(&inode->i_lock);
spin_unlock(&wb->list_lock);
- if (sync)
- inode_sync_wait(inode);
return ret;
}
EXPORT_SYMBOL(write_inode_now);
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