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mm/swapfile.c: make pointer swap_avail_heads static 

The pointer swap_avail_heads is local to the source and does not need to
be in global scope, so make it static.

Cleans up sparse warning:

  mm/swapfile.c:88:19: warning: symbol 'swap_avail_heads' was not declared. Should it be static?

Link: http://lkml.kernel.org/r/20180206215836.12366-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Huang, Ying" <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Colin Ian King 2018-04-10 16:29:55 -07:00 committed by Linus Torvalds
parent 4eaf431f6f
commit bfc6b1cabc
1 changed files with 1 additions and 1 deletions
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mm/swapfile.c
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@ -85,7 +85,7 @@ PLIST_HEAD(swap_active_head);
* is held and the locking order requires swap_lock to be taken
* before any swap_info_struct->lock.
*/
struct plist_head *swap_avail_heads;
static struct plist_head *swap_avail_heads;
static DEFINE_SPINLOCK(swap_avail_lock);
struct swap_info_struct *swap_info[MAX_SWAPFILES];