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authorEric Sandeen <sandeen@redhat.com>2009-09-17 11:55:58 -0400
committerTheodore Ts'o <tytso@mit.edu>2009-09-17 11:55:58 -0400
commit0a80e9867db154966b2a771042e10452ac110e1e (patch)
tree51f43830b3c0dd733b0d446399eb3ea2b6bc84ed /fs
parent5534fb5bb35a62a94e0bd1fa2421f7fb6e894f10 (diff)
downloadlinux-linaro-0a80e9867db154966b2a771042e10452ac110e1e.tar.gz
ext4: replace MAX_DEFRAG_SIZE with EXT_MAX_BLOCK
There's no reason to redefine the maximum allowable offset in an extent-based file just for defrag; EXT_MAX_BLOCK already does this. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/ext4.h1
-rw-r--r--fs/ext4/ext4_extents.h1
-rw-r--r--fs/ext4/move_extent.c12
3 files changed, 7 insertions, 7 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 84e7f1d00a8..e227eea23f0 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -476,7 +476,6 @@ struct move_extent {
__u64 len; /* block length to be moved */
__u64 moved_len; /* moved block length */
};
-#define MAX_DEFRAG_SIZE ((1UL<<31) - 1)
#define EXT4_EPOCH_BITS 2
#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h
index 9538633879d..61652f1d15e 100644
--- a/fs/ext4/ext4_extents.h
+++ b/fs/ext4/ext4_extents.h
@@ -137,6 +137,7 @@ typedef int (*ext_prepare_callback)(struct inode *, struct ext4_ext_path *,
#define EXT_BREAK 1
#define EXT_REPEAT 2
+/* Maximum logical block in a file; ext4_extent's ee_block is __le32 */
#define EXT_MAX_BLOCK 0xffffffff
/*
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 1f027b1ec43..c07a2915e40 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -1040,12 +1040,12 @@ mext_check_arguments(struct inode *orig_inode,
return -EINVAL;
}
- if ((orig_start > MAX_DEFRAG_SIZE) ||
- (donor_start > MAX_DEFRAG_SIZE) ||
- (*len > MAX_DEFRAG_SIZE) ||
- (orig_start + *len > MAX_DEFRAG_SIZE)) {
- ext4_debug("ext4 move extent: Can't handle over [%lu] blocks "
- "[ino:orig %lu, donor %lu]\n", MAX_DEFRAG_SIZE,
+ if ((orig_start > EXT_MAX_BLOCK) ||
+ (donor_start > EXT_MAX_BLOCK) ||
+ (*len > EXT_MAX_BLOCK) ||
+ (orig_start + *len > EXT_MAX_BLOCK)) {
+ ext4_debug("ext4 move extent: Can't handle over [%u] blocks "
+ "[ino:orig %lu, donor %lu]\n", EXT_MAX_BLOCK,
orig_inode->i_ino, donor_inode->i_ino);
return -EINVAL;
}