#include <linux/highmem.h>
#include <linux/swap.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include "time.h"
#include "kmem.h"
gfp_t lflags = kmem_flags_convert(flags);
void *ptr;
+#ifdef DEBUG
+ if (unlikely(!(flags & KM_LARGE) && (size > PAGE_SIZE))) {
+ printk(KERN_WARNING "Large %s attempt, size=%ld\n",
+ __FUNCTION__, (long)size);
+ dump_stack();
+ }
+#endif
+
do {
if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
ptr = kmalloc(size, lflags);
printk(KERN_ERR "XFS: possible memory allocation "
"deadlock in %s (mode:0x%x)\n",
__FUNCTION__, lflags);
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
} while (1);
}
return ptr;
}
+void *
+kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize,
+ unsigned int __nocast flags)
+{
+ void *ptr;
+ size_t kmsize = maxsize;
+ unsigned int kmflags = (flags & ~KM_SLEEP) | KM_NOSLEEP;
+
+ while (!(ptr = kmem_zalloc(kmsize, kmflags))) {
+ if ((kmsize <= minsize) && (flags & KM_NOSLEEP))
+ break;
+ if ((kmsize >>= 1) <= minsize) {
+ kmsize = minsize;
+ kmflags = flags;
+ }
+ }
+ if (ptr)
+ *size = kmsize;
+ return ptr;
+}
+
void
kmem_free(void *ptr, size_t size)
{
printk(KERN_ERR "XFS: possible memory allocation "
"deadlock in %s (mode:0x%x)\n",
__FUNCTION__, lflags);
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
} while (1);
}