Merge branch 'stable/swiotlb-0.9' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / fs / hfsplus / bitmap.c

diff --git a/fs/hfsplus/bitmap.c b/fs/hfsplus/bitmap.c
index ea30afc..ad57f59 100644 (file)
--- a/fs/hfsplus/bitmap.c
+++ b/fs/hfsplus/bitmap.c
@@ -17,6 +17,7 @@
 
 int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *max)
 {
+       struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
        struct page *page;
        struct address_space *mapping;
        __be32 *pptr, *curr, *end;
@@ -29,8 +30,8 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *ma
                return size;
 
        dprint(DBG_BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);
-       mutex_lock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
-       mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;
+       mutex_lock(&sbi->alloc_mutex);
+       mapping = sbi->alloc_file->i_mapping;
        page = read_mapping_page(mapping, offset / PAGE_CACHE_BITS, NULL);
        if (IS_ERR(page)) {
                start = size;
@@ -150,16 +151,17 @@ done:
        set_page_dirty(page);
        kunmap(page);
        *max = offset + (curr - pptr) * 32 + i - start;
-       HFSPLUS_SB(sb).free_blocks -= *max;
+       sbi->free_blocks -= *max;
        sb->s_dirt = 1;
        dprint(DBG_BITMAP, "-> %u,%u\n", start, *max);
 out:
-       mutex_unlock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
+       mutex_unlock(&sbi->alloc_mutex);
        return start;
 }
 
 int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
 {
+       struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
        struct page *page;
        struct address_space *mapping;
        __be32 *pptr, *curr, *end;
@@ -172,11 +174,11 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
 
        dprint(DBG_BITMAP, "block_free: %u,%u\n", offset, count);
        /* are all of the bits in range? */
-       if ((offset + count) > HFSPLUS_SB(sb).total_blocks)
+       if ((offset + count) > sbi->total_blocks)
                return -2;
 
-       mutex_lock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
-       mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;
+       mutex_lock(&sbi->alloc_mutex);
+       mapping = sbi->alloc_file->i_mapping;
        pnr = offset / PAGE_CACHE_BITS;
        page = read_mapping_page(mapping, pnr, NULL);
        pptr = kmap(page);
@@ -224,9 +226,9 @@ done:
 out:
        set_page_dirty(page);
        kunmap(page);
-       HFSPLUS_SB(sb).free_blocks += len;
+       sbi->free_blocks += len;
        sb->s_dirt = 1;
-       mutex_unlock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
+       mutex_unlock(&sbi->alloc_mutex);
 
        return 0;
 }