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Btrfs: Let some locks go during defrag and snapshot dropping

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-08-08 10:08:58 -04:00 • committed by David Woodhouse
commit f4468e94c8
3 changed files with 14 additions and 4 deletions
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6
fs/btrfs/extent-tree.c
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@ -1018,7 +1018,7 @@ static int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root
if (num_blocks == 0) {
fill_prealloc = 1;
num_blocks = 1;
total_needed = (min(level + 1, BTRFS_MAX_LEVEL) + 2) * 3;
total_needed = (min(level + 1, BTRFS_MAX_LEVEL)) * 6;
}
if (fill_prealloc) {
u64 first;
@ -1300,6 +1300,8 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans,
ins->objectid;
ret = update_block_group(trans, root,
ins->objectid, ins->offset, 1, 0, 0);
WARN_ON(info->extent_tree_insert_nr >
ARRAY_SIZE(info->extent_tree_insert));
BUG_ON(ret);
return 0;
}
@ -1628,7 +1630,7 @@ int btrfs_drop_snapshot(struct btrfs_trans_handle *trans, struct btrfs_root
if (wret < 0)
ret = wret;
num_walks++;
if (num_walks > 10) {
if (num_walks > 2) {
ret = -EAGAIN;
get_bh(root->node);
break;