mm: remove CONFIG_UNEVICTABLE_LRU config option

Currently, nobody wants to turn UNEVICTABLE_LRU off.  Thus this
configurability is unnecessary.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andi Kleen <andi@firstfloor.org>
Acked-by: Minchan Kim <minchan.kim@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
KOSAKI Motohiro 2009-06-16 15:32:51 -07:00 committed by Linus Torvalds
parent bce7394a3e
commit 6837765963
17 changed files with 3 additions and 153 deletions

View file

@ -22,9 +22,7 @@ enum mapping_flags {
AS_EIO = __GFP_BITS_SHIFT + 0, /* IO error on async write */
AS_ENOSPC = __GFP_BITS_SHIFT + 1, /* ENOSPC on async write */
AS_MM_ALL_LOCKS = __GFP_BITS_SHIFT + 2, /* under mm_take_all_locks() */
#ifdef CONFIG_UNEVICTABLE_LRU
AS_UNEVICTABLE = __GFP_BITS_SHIFT + 3, /* e.g., ramdisk, SHM_LOCK */
#endif
};
static inline void mapping_set_error(struct address_space *mapping, int error)
@ -37,8 +35,6 @@ static inline void mapping_set_error(struct address_space *mapping, int error)
}
}
#ifdef CONFIG_UNEVICTABLE_LRU
static inline void mapping_set_unevictable(struct address_space *mapping)
{
set_bit(AS_UNEVICTABLE, &mapping->flags);
@ -55,14 +51,6 @@ static inline int mapping_unevictable(struct address_space *mapping)
return test_bit(AS_UNEVICTABLE, &mapping->flags);
return !!mapping;
}
#else
static inline void mapping_set_unevictable(struct address_space *mapping) { }
static inline void mapping_clear_unevictable(struct address_space *mapping) { }
static inline int mapping_unevictable(struct address_space *mapping)
{
return 0;
}
#endif
static inline gfp_t mapping_gfp_mask(struct address_space * mapping)
{