ext4: consolidate in_range() definitions

There are duplicate macro definitions of in_range() in mballoc.h and
balloc.c.  This consolidates these two definitions into ext4.h, and
changes extents.c to use in_range() as well.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger@sun.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 3c0bae11a097..94c8ee81f5e1 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2051,7 +2051,7 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
 
         BUG_ON(cex->ec_type != EXT4_EXT_CACHE_GAP &&
                         cex->ec_type != EXT4_EXT_CACHE_EXTENT);
-        if (block >= cex->ec_block && block < cex->ec_block + cex->ec_len) {
+        if (in_range(block, cex->ec_block, cex->ec_len)) {
                 ex->ee_block = cpu_to_le32(cex->ec_block);
                 ext4_ext_store_pblock(ex, cex->ec_start);
                 ex->ee_len = cpu_to_le16(cex->ec_len);
@@ -3364,7 +3364,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
                  */
                 ee_len = ext4_ext_get_actual_len(ex);
                 /* if found extent covers block, simply return it */
-                if (iblock >= ee_block && iblock < ee_block + ee_len) {
+                if (in_range(iblock, ee_block, ee_len)) {
                         newblock = iblock - ee_block + ee_start;
                         /* number of remaining blocks in the extent */
                         allocated = ee_len - (iblock - ee_block);