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-rw-r--r--fs/btrfs/inode.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d378f8b..bb51bb1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -342,6 +342,10 @@ 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)
+ btrfs_add_inode_defrag(NULL, inode);
+
actual_end = min_t(u64, isize, end + 1);
again:
will_compress = 0;
@@ -799,6 +803,10 @@ static noinline int cow_file_range(struct inode *inode,
disk_num_bytes = num_bytes;
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)
+ btrfs_add_inode_defrag(trans, inode);
+
if (start == 0) {
/* lets try to make an inline extent */
ret = cow_file_range_inline(trans, root, inode,
@@ -5371,6 +5379,9 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
if (IS_ERR(trans))
return ERR_CAST(trans);
+ if (start <= BTRFS_I(inode)->disk_i_size && len < 64 * 1024)
+ btrfs_add_inode_defrag(trans, inode);
+
trans->block_rsv = &root->fs_info->delalloc_block_rsv;
alloc_hint = get_extent_allocation_hint(inode, start, len);
@@ -6682,6 +6693,7 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
ei->ordered_data_close = 0;
ei->orphan_meta_reserved = 0;
ei->dummy_inode = 0;
+ ei->in_defrag = 0;
ei->force_compress = BTRFS_COMPRESS_NONE;
ei->delayed_node = NULL;
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