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authorQu Wenruo <quwenruo@cn.fujitsu.com>2015-06-17 15:49:00 +0800
committerDavid Sterba <dsterba@suse.cz>2015-06-17 16:08:35 +0200
commit0074cd315c9e82e4f0ff8348b77d785da7eb487b (patch)
tree2fbf266c7761d048e80d2fa5ec52dc880be1c951 /cmds-check.c
parentcf4eb9a90e44937b395200d78172411f16fe31af (diff)
btrfs-progs: export read_extent_data function
Export it for later btrfs-map-logical cleanup. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'cmds-check.c')
-rw-r--r--cmds-check.c34
1 files changed, 0 insertions, 34 deletions
diff --git a/cmds-check.c b/cmds-check.c
index db121b1c..778f141d 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -5235,40 +5235,6 @@ static int check_space_cache(struct btrfs_root *root)
return error ? -EINVAL : 0;
}
-static int read_extent_data(struct btrfs_root *root, char *data,
- u64 logical, u64 *len, int mirror)
-{
- u64 offset = 0;
- struct btrfs_multi_bio *multi = NULL;
- struct btrfs_fs_info *info = root->fs_info;
- struct btrfs_device *device;
- int ret = 0;
- u64 max_len = *len;
-
- ret = btrfs_map_block(&info->mapping_tree, READ, logical, len,
- &multi, mirror, NULL);
- if (ret) {
- fprintf(stderr, "Couldn't map the block %llu\n",
- logical + offset);
- goto err;
- }
- device = multi->stripes[0].dev;
-
- if (device->fd == 0)
- goto err;
- if (*len > max_len)
- *len = max_len;
-
- ret = pread64(device->fd, data, *len, multi->stripes[0].physical);
- if (ret != *len)
- ret = -EIO;
- else
- ret = 0;
-err:
- kfree(multi);
- return ret;
-}
-
static int check_extent_csums(struct btrfs_root *root, u64 bytenr,
u64 num_bytes, unsigned long leaf_offset,
struct extent_buffer *eb) {