Commit 7c829b72 authored by Anand Jain's avatar Anand Jain Committed by David Sterba
Browse files

btrfs: add define for oldest generation



Some functions can filter metadata by the generation. Add a define that
will annotate such arguments.

Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 051c98eb
......@@ -66,6 +66,8 @@ struct btrfs_ordered_sum;
#define BTRFS_MAX_LEVEL 8
#define BTRFS_OLDEST_GENERATION 0ULL
#define BTRFS_COMPAT_EXTENT_TREE_V0
/*
......
......@@ -2600,7 +2600,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
range->len = (u64)-1;
}
ret = btrfs_defrag_file(file_inode(file), file,
range, 0, 0);
range, BTRFS_OLDEST_GENERATION, 0);
if (ret > 0)
ret = 0;
kfree(range);
......
......@@ -39,7 +39,6 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
int level;
int next_key_ret = 0;
u64 last_ret = 0;
u64 min_trans = 0;
if (root->fs_info->extent_root == root) {
/*
......@@ -81,7 +80,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
path->keep_locks = 1;
ret = btrfs_search_forward(root, &key, path, min_trans);
ret = btrfs_search_forward(root, &key, path, BTRFS_OLDEST_GENERATION);
if (ret < 0)
goto out;
if (ret > 0) {
......@@ -130,7 +129,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
*/
path->slots[1] = btrfs_header_nritems(path->nodes[1]);
next_key_ret = btrfs_find_next_key(root, path, &key, 1,
min_trans);
BTRFS_OLDEST_GENERATION);
if (next_key_ret == 0) {
memcpy(&root->defrag_progress, &key, sizeof(key));
ret = -EAGAIN;
......
......@@ -282,7 +282,7 @@ int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info,
key.offset = 0;
again_search_slot:
ret = btrfs_search_forward(root, &key, path, 0);
ret = btrfs_search_forward(root, &key, path, BTRFS_OLDEST_GENERATION);
if (ret) {
if (ret > 0)
ret = 0;
......
......@@ -4208,7 +4208,8 @@ static int btrfs_uuid_scan_kthread(void *data)
key.offset = 0;
while (1) {
ret = btrfs_search_forward(root, &key, path, 0);
ret = btrfs_search_forward(root, &key, path,
BTRFS_OLDEST_GENERATION);
if (ret) {
if (ret > 0)
ret = 0;
......
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