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authorTahsin Erdogan <tahsin@google.com>2016-12-13 03:43:20 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-13 05:55:08 +0300
commitbace9248188f64d7490ebe59fc0733db8b6f0e57 (patch)
tree593403191c322c4528f4ec8f568a330a149d2947 /fs/fs-writeback.c
parentc70b647d381cba1899c953b0016b7dc185892f90 (diff)
downloadlinux-bace9248188f64d7490ebe59fc0733db8b6f0e57.tar.xz
fs/fs-writeback.c: remove redundant if check
b_more_io non-empty check is already preceded by an opposite check. Link: http://lkml.kernel.org/r/1478591249-30641-1-git-send-email-tahsin@google.com Signed-off-by: Tahsin Erdogan <tahsin@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fs-writeback.c')
-rw-r--r--fs/fs-writeback.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 05713a5da083..ef600591d96f 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1769,15 +1769,13 @@ static long wb_writeback(struct bdi_writeback *wb,
* become available for writeback. Otherwise
* we'll just busyloop.
*/
- if (!list_empty(&wb->b_more_io)) {
- trace_writeback_wait(wb, work);
- inode = wb_inode(wb->b_more_io.prev);
- spin_lock(&inode->i_lock);
- spin_unlock(&wb->list_lock);
- /* This function drops i_lock... */
- inode_sleep_on_writeback(inode);
- spin_lock(&wb->list_lock);
- }
+ trace_writeback_wait(wb, work);
+ inode = wb_inode(wb->b_more_io.prev);
+ spin_lock(&inode->i_lock);
+ spin_unlock(&wb->list_lock);
+ /* This function drops i_lock... */
+ inode_sleep_on_writeback(inode);
+ spin_lock(&wb->list_lock);
}
spin_unlock(&wb->list_lock);
blk_finish_plug(&plug);