writeback: fix inode cgroup switching comment (a9519def) · Commits · 戴 / test

Commit ("writeback: implement unlocked_inode_to_wb transaction and use it for stat updates") refers to inode_switch_wb_work_fn() which never got merged. Switch the comments to inode_switch_wbs_work_fn(). Link: http://lkml.kernel.org/r/20190305004617.142590-1-gthelen@google.com Fixes: ("writeback: implement unlocked_inode_to_wb transaction and use it for stat updates") Signed-off-by:

Greg Thelen <gthelen@google.com> Reviewed-by:

Andrew Morton <akpm@linux-foundation.org> Acked-by:

Tejun Heo <tj@kernel.org> Signed-off-by:

Andrew Morton <akpm@linux-foundation.org> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

include/linux/backing-dev.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -365,7 +365,7 @@ unlocked_inode_to_wb_begin(struct inode inode, struct wb_lock_cookie cookie)
		rcu_read_lock();

		/*
		* Paired with store_release in inode_switch_wb_work_fn() and
		* Paired with store_release in inode_switch_wbs_work_fn() and
		* ensures that we see the new wb if we see cleared I_WB_SWITCH.
		*/
		cookie->locked = smp_load_acquire(&inode->i_state) & I_WB_SWITCH;

include/linux/fs.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -2091,7 +2091,7 @@ static inline void init_sync_kiocb(struct kiocb kiocb, struct file filp)
		* I_WB_SWITCH Cgroup bdi_writeback switching in progress. Used to
		* synchronize competing switching instances and to tell
		* wb stat updates to grab the i_pages lock. See
		* inode_switch_wb_work_fn() for details.
		* inode_switch_wbs_work_fn() for details.
		*
		* I_OVL_INUSE Used by overlayfs to get exclusive ownership on upper
		* and work dirs among overlayfs mounts.

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