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authorHugo Mills <hugo@carfax.org.uk>2011-05-14 17:43:41 +0000
committerChris Mason <chris.mason@oracle.com>2011-05-23 13:05:39 -0400
commite2156867159ae7b3bc38ef1c26ea0ee30a895ef8 (patch)
treed949884cdaf5ebeb8d9ba14ec0284c9ece437164 /fs
parent0956c798ef8dbe0fc215870eb68bd2d8e789f86a (diff)
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btrfs: Ensure the tree search ioctl returns the right number of records
Btrfs's tree search ioctl has a field to indicate that no more than a given number of records should be returned. The ioctl doesn't honour this, as the tested value is not incremented until the end of the copy_to_sk function. This patch removes an unnecessary local variable, and updates the num_found counter as each key is found in the tree. Signed-off-by: Hugo Mills <hugo@carfax.org.uk> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/ioctl.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 2616f7ed479..ce773fb736a 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1279,7 +1279,6 @@ static noinline int copy_to_sk(struct btrfs_root *root,
int nritems;
int i;
int slot;
- int found = 0;
int ret = 0;
leaf = path->nodes[0];
@@ -1326,7 +1325,7 @@ static noinline int copy_to_sk(struct btrfs_root *root,
item_off, item_len);
*sk_offset += item_len;
}
- found++;
+ (*num_found)++;
if (*num_found >= sk->nr_items)
break;
@@ -1345,7 +1344,6 @@ advance_key:
} else
ret = 1;
overflow:
- *num_found += found;
return ret;
}