From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Tue, 6 Feb 2018 23:37:21 +0000 (-0800)
Subject: fs/proc/internal.h: fix up comment
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=53f63345d893df36b58e81ddb3d11dcd2e9cc966;p=openwrt%2Fstaging%2Fblogic.git

fs/proc/internal.h: fix up comment

Document what ->pde_unload_lock actually does.

Link: http://lkml.kernel.org/r/20180103185120.GB31849@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index a290a1e921a5..5ba317874f0d 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -38,7 +38,8 @@ struct proc_dir_entry {
 	atomic_t in_use;
 	atomic_t count;		/* use count */
 	struct list_head pde_openers;	/* who did ->open, but not ->release */
-	spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
+	/* protects ->pde_openers and all struct pde_opener instances */
+	spinlock_t pde_unload_lock;
 	struct completion *pde_unload_completion;
 	const struct inode_operations *proc_iops;
 	const struct file_operations *proc_fops;