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-rw-r--r--fs/btrfs/inode.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index eb6aec7bbac..1be31368e88 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -347,8 +347,9 @@ static noinline int compress_file_range(struct inode *inode,
int will_compress;
int compress_type = root->fs_info->compress_type;
- /* if this is a small write inside eof, kick off a defragbot */
- if (end <= BTRFS_I(inode)->disk_i_size && (end - start + 1) < 16 * 1024)
+ /* if this is a small write inside eof, kick off a defrag */
+ if ((end - start + 1) < 16 * 1024 &&
+ (start > 0 || end + 1 < BTRFS_I(inode)->disk_i_size))
btrfs_add_inode_defrag(NULL, inode);
actual_end = min_t(u64, isize, end + 1);
@@ -843,7 +844,8 @@ static noinline int cow_file_range(struct inode *inode,
ret = 0;
/* if this is a small write inside eof, kick off defrag */
- if (end <= BTRFS_I(inode)->disk_i_size && num_bytes < 64 * 1024)
+ if (num_bytes < 64 * 1024 &&
+ (start > 0 || end + 1 < BTRFS_I(inode)->disk_i_size))
btrfs_add_inode_defrag(trans, inode);
if (start == 0) {