#include <linux/mm.h>
/*
- * Process flags handling
+ * memory management routines
*/
+#define KM_SLEEP 0x0001u
+#define KM_NOSLEEP 0x0002u
+#define KM_NOFS 0x0004u
+#define KM_MAYFAIL 0x0008u
+
+#define kmem_zone kmem_cache
+#define kmem_zone_t struct kmem_cache
+
+typedef unsigned long xfs_pflags_t;
#define PFLAGS_TEST_NOIO() (current->flags & PF_NOIO)
#define PFLAGS_TEST_FSTRANS() (current->flags & PF_FSTRANS)
*(NSTATEP) = *(OSTATEP); \
} while (0)
-/*
- * General memory allocation interfaces
- */
-
-#define KM_SLEEP 0x0001u
-#define KM_NOSLEEP 0x0002u
-#define KM_NOFS 0x0004u
-#define KM_MAYFAIL 0x0008u
-
-/*
- * We use a special process flag to avoid recursive callbacks into
- * the filesystem during transactions. We will also issue our own
- * warnings, so we explicitly skip any generic ones (silly of us).
- */
-static inline gfp_t
-kmem_flags_convert(unsigned int __nocast flags)
+static __inline gfp_t kmem_flags_convert(unsigned int __nocast flags)
{
- gfp_t lflags;
+ gfp_t lflags = __GFP_NOWARN; /* we'll report problems, if need be */
- BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL));
+#ifdef DEBUG
+ if (unlikely(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL))) {
+ printk(KERN_WARNING
+ "XFS: memory allocation with wrong flags (%x)\n", flags);
+ BUG();
+ }
+#endif
if (flags & KM_NOSLEEP) {
- lflags = GFP_ATOMIC | __GFP_NOWARN;
+ lflags |= GFP_ATOMIC;
} else {
- lflags = GFP_KERNEL | __GFP_NOWARN;
+ lflags |= GFP_KERNEL;
+
+ /* avoid recusive callbacks to filesystem during transactions */
if (PFLAGS_TEST_FSTRANS() || (flags & KM_NOFS))
lflags &= ~__GFP_FS;
}
- return lflags;
-}
-extern void *kmem_alloc(size_t, unsigned int __nocast);
-extern void *kmem_realloc(void *, size_t, size_t, unsigned int __nocast);
-extern void *kmem_zalloc(size_t, unsigned int __nocast);
-extern void kmem_free(void *, size_t);
-
-/*
- * Zone interfaces
- */
-
-#define KM_ZONE_HWALIGN SLAB_HWCACHE_ALIGN
-#define KM_ZONE_RECLAIM SLAB_RECLAIM_ACCOUNT
-#define KM_ZONE_SPREAD SLAB_MEM_SPREAD
-
-#define kmem_zone kmem_cache
-#define kmem_zone_t struct kmem_cache
+ return lflags;
+}
-static inline kmem_zone_t *
+static __inline kmem_zone_t *
kmem_zone_init(int size, char *zone_name)
{
return kmem_cache_create(zone_name, size, 0, 0, NULL, NULL);
}
-static inline kmem_zone_t *
-kmem_zone_init_flags(int size, char *zone_name, unsigned long flags,
- void (*construct)(void *, kmem_zone_t *, unsigned long))
-{
- return kmem_cache_create(zone_name, size, 0, flags, construct, NULL);
-}
-
-static inline void
+static __inline void
kmem_zone_free(kmem_zone_t *zone, void *ptr)
{
kmem_cache_free(zone, ptr);
}
-static inline void
+static __inline void
kmem_zone_destroy(kmem_zone_t *zone)
{
if (zone && kmem_cache_destroy(zone))
BUG();
}
-extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
+extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
-/*
- * Low memory cache shrinkers
- */
+extern void *kmem_alloc(size_t, unsigned int __nocast);
+extern void *kmem_realloc(void *, size_t, size_t, unsigned int __nocast);
+extern void *kmem_zalloc(size_t, unsigned int __nocast);
+extern void kmem_free(void *, size_t);
typedef struct shrinker *kmem_shaker_t;
typedef int (*kmem_shake_func_t)(int, gfp_t);
-static inline kmem_shaker_t
+static __inline kmem_shaker_t
kmem_shake_register(kmem_shake_func_t sfunc)
{
return set_shrinker(DEFAULT_SEEKS, sfunc);
}
-static inline void
+static __inline void
kmem_shake_deregister(kmem_shaker_t shrinker)
{
remove_shrinker(shrinker);
}
-static inline int
+static __inline int
kmem_shake_allow(gfp_t gfp_mask)
{
return (gfp_mask & __GFP_WAIT);