diff options
| author |   Anand Jain <anand.jain@oracle.com> | 2018-03-07 17:29:18 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2018-03-31 01:26:50 +0200 |
| commit | 7c829b722dffb22aaf9e3ea1b1d88dac49bd0768 (patch) | |
| tree | 1dba1902eb1013a71c51ae2a4bb594b55729be4c /fs/btrfs | |
| parent | btrfs: open code trivial helper btrfs_page_exists_in_range (diff) | |
| download | linux-dev-7c829b722dffb22aaf9e3ea1b1d88dac49bd0768.tar.xz linux-dev-7c829b722dffb22aaf9e3ea1b1d88dac49bd0768.zip | |
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: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 | ||||
| -rw-r--r-- | fs/btrfs/ioctl.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/tree-defrag.c | 5 | ||||
| -rw-r--r-- | fs/btrfs/uuid-tree.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/volumes.c | 3 |
5 files changed, 8 insertions, 6 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index f4926dc9649f..15bf111cd5c5 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -66,6 +66,8 @@ struct btrfs_ordered_sum; #define BTRFS_MAX_LEVEL 8 +#define BTRFS_OLDEST_GENERATION 0ULL + #define BTRFS_COMPAT_EXTENT_TREE_V0 /* diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index c5a559105949..ba403c00982c 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -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); diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c index cb65089127cc..c09dbe4bd6e7 100644 --- a/fs/btrfs/tree-defrag.c +++ b/fs/btrfs/tree-defrag.c @@ -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; diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c index 726f928238d0..9916f03430bc 100644 --- a/fs/btrfs/uuid-tree.c +++ b/fs/btrfs/uuid-tree.c @@ -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; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 1622d3b73771..1e72357bdfa8 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -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; |