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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 20:50:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 20:50:02 -0800
commite34bac726d27056081d0250c0e173e4b155aa340 (patch)
tree85607d0b3b185380fb3267866020c6a4372b9298 /fs/fs-writeback.c
parentfe6bce8d30a86c693bf7cfbf4759cbafd121289f (diff)
parent39a0e975c37dee93fa1b8ea5f7eacd1c4c8a586e (diff)
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - various misc bits - most of MM (quite a lot of MM material is awaiting the merge of linux-next dependencies) - kasan - printk updates - procfs updates - MAINTAINERS - /lib updates - checkpatch updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (123 commits) init: reduce rootwait polling interval time to 5ms binfmt_elf: use vmalloc() for allocation of vma_filesz checkpatch: don't emit unified-diff error for rename-only patches checkpatch: don't check c99 types like uint8_t under tools checkpatch: avoid multiple line dereferences checkpatch: don't check .pl files, improve absolute path commit log test scripts/checkpatch.pl: fix spelling checkpatch: don't try to get maintained status when --no-tree is given lib/ida: document locking requirements a bit better lib/rbtree.c: fix typo in comment of ____rb_erase_color lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM MAINTAINERS: add drm and drm/i915 irc channels MAINTAINERS: add "C:" for URI for chat where developers hang out MAINTAINERS: add drm and drm/i915 bug filing info MAINTAINERS: add "B:" for URI where to file bugs get_maintainer: look for arbitrary letter prefixes in sections printk: add Kconfig option to set default console loglevel printk/sound: handle more message headers printk/btrfs: handle more message headers printk/kdb: handle more message headers ...
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);