mm/swapfile.c: fix comments for swapcache_prepare
authorChen Wandun <chenwandun@huawei.com>
Thu, 2 Apr 2020 04:06:07 +0000 (21:06 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 2 Apr 2020 16:35:27 +0000 (09:35 -0700)
The -EEXIST returned by __swap_duplicate means there is a swap cache
instead -EBUSY

Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200212145754.27123-1-chenwandun@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/swapfile.c

index be33e6176cd901cb1b090cfaf08b1c572f8944cf..6d63bd9b7da264f6fba2224122ab097791f44802 100644 (file)
@@ -3475,7 +3475,7 @@ int swap_duplicate(swp_entry_t entry)
  *
  * Called when allocating swap cache for existing swap entry,
  * This can return error codes. Returns 0 at success.
- * -EBUSY means there is a swap cache.
+ * -EEXIST means there is a swap cache.
  * Note: return code is different from swap_duplicate().
  */
 int swapcache_prepare(swp_entry_t entry)