[PATCH] autofs4: atomic var underflow

[linux-2.6-omap-h63xx.git] / mm / highmem.c

diff --git a/mm/highmem.c b/mm/highmem.c
index 90e1861e2da0defa1a9b8514a9f781b8529a6197..55885f64af40680971cc08b01866c4b917ab4917 100644 (file)
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -26,20 +26,14 @@
 #include <linux/init.h>
 #include <linux/hash.h>
 #include <linux/highmem.h>
+#include <linux/blktrace_api.h>
 #include <asm/tlbflush.h>
 
 static mempool_t *page_pool, *isa_page_pool;
 
-static void *page_pool_alloc(gfp_t gfp_mask, void *data)
+static void *mempool_alloc_pages_isa(gfp_t gfp_mask, void *data)
 {
-       unsigned int gfp = gfp_mask | (unsigned int) (long) data;
-
-       return alloc_page(gfp);
-}
-
-static void page_pool_free(void *page, void *data)
-{
-       __free_page(page);
+       return mempool_alloc_pages(gfp_mask | GFP_DMA, data);
 }
 
 /*
@@ -51,6 +45,7 @@ static void page_pool_free(void *page, void *data)
  *  n means that there are (n-1) current users of it.
  */
 #ifdef CONFIG_HIGHMEM
+
 static int pkmap_count[LAST_PKMAP];
 static unsigned int last_pkmap_nr;
 static  __cacheline_aligned_in_smp DEFINE_SPINLOCK(kmap_lock);
@@ -224,7 +219,7 @@ static __init int init_emergency_pool(void)
        if (!i.totalhigh)
                return 0;
 
-       page_pool = mempool_create(POOL_SIZE, page_pool_alloc, page_pool_free, NULL);
+       page_pool = mempool_create_page_pool(POOL_SIZE, 0);
        if (!page_pool)
                BUG();
        printk("highmem bounce pool size: %d pages\n", POOL_SIZE);
@@ -267,7 +262,8 @@ int init_emergency_isa_pool(void)
        if (isa_page_pool)
                return 0;
 
-       isa_page_pool = mempool_create(ISA_POOL_SIZE, page_pool_alloc, page_pool_free, (void *) __GFP_DMA);
+       isa_page_pool = mempool_create(ISA_POOL_SIZE, mempool_alloc_pages_isa,
+                                      mempool_free_pages, (void *) 0);
        if (!isa_page_pool)
                BUG();
 
@@ -332,7 +328,7 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool, int err)
        bio_put(bio);
 }
 
-static int bounce_end_io_write(struct bio *bio, unsigned int bytes_done,int err)
+static int bounce_end_io_write(struct bio *bio, unsigned int bytes_done, int err)
 {
        if (bio->bi_size)
                return 1;
@@ -379,7 +375,7 @@ static int bounce_end_io_read_isa(struct bio *bio, unsigned int bytes_done, int
 }
 
 static void __blk_queue_bounce(request_queue_t *q, struct bio **bio_orig,
-                       mempool_t *pool)
+                              mempool_t *pool)
 {
        struct page *page;
        struct bio *bio = NULL;
@@ -479,6 +475,8 @@ void blk_queue_bounce(request_queue_t *q, struct bio **bio_orig)
                pool = isa_page_pool;
        }
 
+       blk_add_trace_bio(q, *bio_orig, BLK_TA_BOUNCE);
+
        /*
         * slow path
         */