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mm/mempolicy.c: mpol_equal(): use bool

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mpol_equal() logically returns a boolean.  Use a bool type to slightly
improve readability.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Stephen Wilson <wilsons@start.ca>
Acked-by: David Rientjes <rientjes@google.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 2012-01-10 15:08:21 -08:00 committed by Linus Torvalds
parent 0c176d52b0
commit fcfb4dcc96
2 changed files with 12 additions and 12 deletions
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10
include/linux/mempolicy.h
View file

@ -164,11 +164,11 @@ static inline void mpol_get(struct mempolicy *pol)
atomic_inc(&pol->refcnt);
}
extern int __mpol_equal(struct mempolicy *a, struct mempolicy *b);
static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
extern bool __mpol_equal(struct mempolicy *a, struct mempolicy *b);
static inline bool mpol_equal(struct mempolicy *a, struct mempolicy *b)
{
if (a == b)
return 1;
return true;
return __mpol_equal(a, b);
}
@ -257,9 +257,9 @@ static inline int vma_migratable(struct vm_area_struct *vma)
struct mempolicy {};
static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
static inline bool mpol_equal(struct mempolicy *a, struct mempolicy *b)
{
return 1;
return true;
}
static inline void mpol_put(struct mempolicy *p)

14
mm/mempolicy.c
View file

@ -1983,28 +1983,28 @@ struct mempolicy *__mpol_cond_copy(struct mempolicy *tompol,
}
/* Slow path of a mempolicy comparison */
int __mpol_equal(struct mempolicy *a, struct mempolicy *b)
bool __mpol_equal(struct mempolicy *a, struct mempolicy *b)
{
if (!a || !b)
return 0;
return false;
if (a->mode != b->mode)
return 0;
return false;
if (a->flags != b->flags)
return 0;
return false;
if (mpol_store_user_nodemask(a))
if (!nodes_equal(a->w.user_nodemask, b->w.user_nodemask))
return 0;
return false;
switch (a->mode) {
case MPOL_BIND:
/* Fall through */
case MPOL_INTERLEAVE:
return nodes_equal(a->v.nodes, b->v.nodes);
return !!nodes_equal(a->v.nodes, b->v.nodes);
case MPOL_PREFERRED:
return a->v.preferred_node == b->v.preferred_node;
default:
BUG();
return 0;
return false;
}
}