diff mbox series

[09/13] fs: drop redundant checks from __writeback_single_inode()

Message ID 20210105005452.92521-10-ebiggers@kernel.org (mailing list archive)
State New, archived
Headers show
Series lazytime fixes and cleanups | expand

Commit Message

Eric Biggers Jan. 5, 2021, 12:54 a.m. UTC 
From: Eric Biggers <ebiggers@google.com>

I_DIRTY_TIME and I_DIRTY_INODE are mutually exclusive in i_state.  So
after seeing that I_DIRTY_TIME is set, there's no point in checking for
I_DIRTY_INODE, as it must be clear.

Separately, wbc->for_sync implies wbc->sync_mode == WB_SYNC_ALL.
So there's no need to check for both.  Just check for WB_SYNC_ALL.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/fs-writeback.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Christoph Hellwig Jan. 8, 2021, 9:12 a.m. UTC | #1 
Looks good, but will change a bit with Jan's patch as the base.
diff mbox series

Patch

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index f20daf4f5e19b..3f5a589399afe 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1482,8 +1482,7 @@  __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 
 	dirty = inode->i_state & I_DIRTY;
 	if ((inode->i_state & I_DIRTY_TIME) &&
-	    ((dirty & I_DIRTY_INODE) ||
-	     wbc->sync_mode == WB_SYNC_ALL || wbc->for_sync ||
+	    (wbc->sync_mode == WB_SYNC_ALL ||
 	     time_after(jiffies, inode->dirtied_time_when +
 			dirtytime_expire_interval * HZ))) {
 		dirty |= I_DIRTY_TIME;