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Btrfs: Further reduce the concurrency penalty of defrag and drop_snapshot

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-08-08 20:17:12 -04:00
committed by David Woodhouse
parent 26b8003f10
commit 409eb95d7f
3 changed files with 11 additions and 12 deletions
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7
fs/btrfs/tree-defrag.c
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@@ -148,7 +148,6 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
int level;
int orig_level;
int i;
int num_runs = 0;
if (root->ref_cows == 0) {
goto out;
@@ -200,10 +199,8 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
break;
if (wret < 0)
ret = wret;
if (num_runs++ > 8) {
ret = -EAGAIN;
break;
}
ret = -EAGAIN;
break;
}
for (i = 0; i <= orig_level; i++) {
if (path->nodes[i]) {