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authorHugh Dickins <hugh.dickins@tiscali.co.uk>2009-12-14 17:58:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 08:53:15 -0800
commit253d553ba75ab26b3e9e2f70cbf6fbf0813f7e86 (patch)
tree57c448fad45820c0eb984297fbef120b689381a0 /include/linux/swap.h
parent73c34b6accc8427584f5d7db4d5acb230ed8c912 (diff)
downloadop-kernel-dev-253d553ba75ab26b3e9e2f70cbf6fbf0813f7e86.zip
op-kernel-dev-253d553ba75ab26b3e9e2f70cbf6fbf0813f7e86.tar.gz
swap_info: SWAP_HAS_CACHE cleanups
Though swap_count() is useful, I'm finding that swap_has_cache() and encode_swapmap() obscure what happens in the swap_map entry, just at those points where I need to understand it. Remove them, and pass more usable "usage" values to scan_swap_map(), swap_entry_free() and __swap_duplicate(), instead of the SWAP_MAP and SWAP_CACHE enum. Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/swap.h')
-rw-r--r--include/linux/swap.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 109dfe7..c9d8870 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -154,7 +154,7 @@ enum {
#define SWAP_MAP_MAX 0x7ffe
#define SWAP_MAP_BAD 0x7fff
#define SWAP_HAS_CACHE 0x8000 /* There is a swap cache of entry. */
-#define SWAP_COUNT_MASK (~SWAP_HAS_CACHE)
+
/*
* The in-memory structure used to track swap areas.
*/
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