@@ -3846,6 +3846,11 @@ static inline bool btrfs_is_zoned(const struct btrfs_fs_info *fs_info)
return fs_info->zoned != 0;
}
+static inline bool btrfs_is_data_reloc_root(const struct btrfs_root *root)
+{
+ return root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID;
+}
+
/*
* We use page status Private2 to indicate there is an ordered extent with
* unfinished IO.
@@ -1500,7 +1500,7 @@ static int btrfs_init_fs_root(struct btrfs_root *root, dev_t anon_dev)
goto fail;
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID &&
- root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID) {
+ !btrfs_is_data_reloc_root(root)) {
set_bit(BTRFS_ROOT_SHAREABLE, &root->state);
btrfs_check_and_init_root_item(&root->root_item);
}
@@ -2376,7 +2376,7 @@ int btrfs_cross_ref_exist(struct btrfs_root *root, u64 objectid, u64 offset,
out:
btrfs_free_path(path);
- if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
+ if (btrfs_is_data_reloc_root(root))
WARN_ON(ret > 0);
return ret;
}
@@ -1150,7 +1150,7 @@ static noinline int cow_file_range(struct btrfs_inode *inode,
* fails during the stage where it updates the bytenr of file extent
* items.
*/
- if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
+ if (btrfs_is_data_reloc_root(root))
min_alloc_size = num_bytes;
else
min_alloc_size = fs_info->sectorsize;
@@ -1186,8 +1186,7 @@ static noinline int cow_file_range(struct btrfs_inode *inode,
if (ret)
goto out_drop_extent_cache;
- if (root->root_key.objectid ==
- BTRFS_DATA_RELOC_TREE_OBJECTID) {
+ if (btrfs_is_data_reloc_root(root)) {
ret = btrfs_reloc_clone_csums(inode, start,
cur_alloc_size);
/*
@@ -1503,8 +1502,7 @@ static int fallback_to_cow(struct btrfs_inode *inode, struct page *locked_page,
int *page_started, unsigned long *nr_written)
{
const bool is_space_ino = btrfs_is_free_space_inode(inode);
- const bool is_reloc_ino = (inode->root->root_key.objectid ==
- BTRFS_DATA_RELOC_TREE_OBJECTID);
+ const bool is_reloc_ino = btrfs_is_data_reloc_root(inode->root);
const u64 range_bytes = end + 1 - start;
struct extent_io_tree *io_tree = &inode->io_tree;
u64 range_start = start;
@@ -1866,8 +1864,7 @@ static noinline int run_delalloc_nocow(struct btrfs_inode *inode,
btrfs_dec_nocow_writers(fs_info, disk_bytenr);
nocow = false;
- if (root->root_key.objectid ==
- BTRFS_DATA_RELOC_TREE_OBJECTID)
+ if (btrfs_is_data_reloc_root(root))
/*
* Error handled later, as we must prevent
* extent_clear_unlock_delalloc() in error handler
@@ -2206,7 +2203,7 @@ void btrfs_clear_delalloc_extent(struct inode *vfs_inode,
if (btrfs_is_testing(fs_info))
return;
- if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID &&
+ if (!btrfs_is_data_reloc_root(root) &&
do_list && !(state->state & EXTENT_NORESERVE) &&
(*bits & EXTENT_CLEAR_DATA_RESV))
btrfs_free_reserved_data_space_noquota(fs_info, len);
@@ -2531,7 +2528,7 @@ blk_status_t btrfs_submit_data_bio(struct inode *inode, struct bio *bio,
goto mapit;
} else if (async && !skip_sum) {
/* csum items have already been cloned */
- if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
+ if (btrfs_is_data_reloc_root(root))
goto mapit;
/* we're doing a write, do the async checksumming */
ret = btrfs_wq_submit_bio(inode, bio, mirror_num, bio_flags,
@@ -3307,7 +3304,7 @@ unsigned int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u32 bio_offset,
u64 file_offset = pg_off + page_offset(page);
int ret;
- if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID &&
+ if (btrfs_is_data_reloc_root(root) &&
test_range_bit(io_tree, file_offset,
file_offset + sectorsize - 1,
EXTENT_NODATASUM, 1, NULL)) {
@@ -4008,7 +4005,7 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
* without delay
*/
if (!btrfs_is_free_space_inode(inode)
- && root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
+ && !btrfs_is_data_reloc_root(root)
&& !test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags)) {
btrfs_update_root_times(trans, root);
@@ -4391,7 +4391,7 @@ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
return 0;
BUG_ON(rc->stage == UPDATE_DATA_PTRS &&
- root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID);
+ btrfs_is_data_reloc_root(root));
level = btrfs_header_level(buf);
if (btrfs_header_generation(buf) <=
There are several places in our codebase where we check if a root is the root of the data reloc tree and subsequent patches will introduce more. Factor out the check into a small helper function instead of open coding it multiple times. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> --- fs/btrfs/ctree.h | 5 +++++ fs/btrfs/disk-io.c | 2 +- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/inode.c | 19 ++++++++----------- fs/btrfs/relocation.c | 2 +- 5 files changed, 16 insertions(+), 14 deletions(-)