ext4: fix block reservation for bigalloc filesystems

[firefly-linux-kernel-4.4.55.git] / fs / ext4 / ext4.h

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index c55a1faaed583778d482b0fb6368bd72b454fc19..7b3f3b1decff3c9555e4714b98062090e51d7363 100644 (file)
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -158,17 +158,8 @@ struct ext4_allocation_request {
 #define EXT4_MAP_MAPPED                (1 << BH_Mapped)
 #define EXT4_MAP_UNWRITTEN     (1 << BH_Unwritten)
 #define EXT4_MAP_BOUNDARY      (1 << BH_Boundary)
-/* Sometimes (in the bigalloc case, from ext4_da_get_block_prep) the caller of
- * ext4_map_blocks wants to know whether or not the underlying cluster has
- * already been accounted for. EXT4_MAP_FROM_CLUSTER conveys to the caller that
- * the requested mapping was from previously mapped (or delayed allocated)
- * cluster. We use BH_AllocFromCluster only for this flag. BH_AllocFromCluster
- * should never appear on buffer_head's state flags.
- */
-#define EXT4_MAP_FROM_CLUSTER  (1 << BH_AllocFromCluster)
 #define EXT4_MAP_FLAGS         (EXT4_MAP_NEW | EXT4_MAP_MAPPED |\
-                                EXT4_MAP_UNWRITTEN | EXT4_MAP_BOUNDARY |\
-                                EXT4_MAP_FROM_CLUSTER)
+                                EXT4_MAP_UNWRITTEN | EXT4_MAP_BOUNDARY)
 
 struct ext4_map_blocks {
        ext4_fsblk_t m_pblk;
@@ -2192,7 +2183,6 @@ extern int ext4_calculate_overhead(struct super_block *sb);
 extern void ext4_superblock_csum_set(struct super_block *sb);
 extern void *ext4_kvmalloc(size_t size, gfp_t flags);
 extern void *ext4_kvzalloc(size_t size, gfp_t flags);
-extern void ext4_kvfree(void *ptr);
 extern int ext4_alloc_flex_bg_array(struct super_block *sb,
                                    ext4_group_t ngroup);
 extern const char *ext4_decode_error(struct super_block *sb, int errno,
@@ -2790,16 +2780,6 @@ extern int ext4_bio_write_page(struct ext4_io_submit *io,
 /* mmp.c */
 extern int ext4_multi_mount_protect(struct super_block *, ext4_fsblk_t);
 
-/*
- * Note that these flags will never ever appear in a buffer_head's state flag.
- * See EXT4_MAP_... to see where this is used.
- */
-enum ext4_state_bits {
-       BH_AllocFromCluster     /* allocated blocks were part of already
-                                * allocated cluster. */
-       = BH_JBDPrivateStart
-};
-
 /*
  * Add new method to test whether block and inode bitmaps are properly
  * initialized. With uninit_bg reading the block from disk is not enough