Hi, Qu,
On 2015/09/08 18:25, Qu Wenruo wrote:
> Cleanup the old facilities which use old btrfs_qgroup_reserve() function
> call, replace them with the newer version, and remove the "__" prefix in
> them.
>
> Also, make btrfs_qgroup_reserve/free() functions private, as they are
> now only used inside qgroup codes.
>
> Now, the whole btrfs qgroup is swithed to use the new reserve facilities.
>
> Signed-off-by: Qu Wenruo <quwen...@cn.fujitsu.com>
> ---
> fs/btrfs/ctree.h | 6 ++----
> fs/btrfs/extent-tree.c | 56
> ++++----------------------------------------------
> fs/btrfs/file.c | 2 +-
> fs/btrfs/inode-map.c | 2 +-
> fs/btrfs/inode.c | 12 +++++------
> fs/btrfs/ioctl.c | 2 +-
> fs/btrfs/qgroup.c | 19 ++++++++++-------
> fs/btrfs/qgroup.h | 7 -------
> 8 files changed, 27 insertions(+), 79 deletions(-)
>
> diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
> index 12f14fd..8489419 100644
> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -3452,8 +3452,7 @@ enum btrfs_reserve_flush_enum {
> BTRFS_RESERVE_FLUSH_ALL,
> };
>
> -int btrfs_check_data_free_space(struct inode *inode, u64 bytes, u64
> write_bytes);
> -int __btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len);
> +int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len);
> int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes);
> void btrfs_free_reserved_data_space(struct inode *inode, u64 bytes);
> void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
> @@ -3471,8 +3470,7 @@ void btrfs_subvolume_release_metadata(struct btrfs_root
> *root,
> u64 qgroup_reserved);
> int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes);
> void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes);
> -int btrfs_delalloc_reserve_space(struct inode *inode, u64 num_bytes);
> -int __btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
> +int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
> void btrfs_delalloc_release_space(struct inode *inode, u64 num_bytes);
> void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type);
> struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root,
> diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
> index 07f45b7..ab1b1a1 100644
> --- a/fs/btrfs/extent-tree.c
> +++ b/fs/btrfs/extent-tree.c
> @@ -3352,7 +3352,7 @@ again:
> num_pages *= 16;
> num_pages *= PAGE_CACHE_SIZE;
>
> - ret = __btrfs_check_data_free_space(inode, 0, num_pages);
> + ret = btrfs_check_data_free_space(inode, 0, num_pages);
> if (ret)
> goto out_put;
>
> @@ -4037,27 +4037,11 @@ commit_trans:
> }
>
> /*
> - * This will check the space that the inode allocates from to make sure we
> have
> - * enough space for bytes.
> - */
> -int btrfs_check_data_free_space(struct inode *inode, u64 bytes, u64
> write_bytes)
> -{
> - struct btrfs_root *root = BTRFS_I(inode)->root;
> - int ret;
> -
> - ret = btrfs_alloc_data_chunk_ondemand(inode, bytes);
> - if (ret < 0)
> - return ret;
> - ret = btrfs_qgroup_reserve(root, write_bytes);
> - return ret;
> -}
> -
> -/*
> * New check_data_free_space() with ability for precious data reserveation
> * Will replace old btrfs_check_data_free_space(), but for patch split,
> * add a new function first and then replace it.
> */
> -int __btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len)
> +int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len)
> {
> struct btrfs_root *root = BTRFS_I(inode)->root;
> int ret;
> @@ -5710,11 +5694,11 @@ void btrfs_delalloc_release_metadata(struct inode
> *inode, u64 num_bytes)
> * Return 0 for success
> * Return <0 for error(-ENOSPC or -EQUOT)
> */
> -int __btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len)
> +int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len)
> {
> int ret;
>
> - ret = __btrfs_check_data_free_space(inode, start, len);
> + ret = btrfs_check_data_free_space(inode, start, len);
> if (ret < 0)
> return ret;
> ret = btrfs_delalloc_reserve_metadata(inode, len);
> @@ -5724,38 +5708,6 @@ int __btrfs_delalloc_reserve_space(struct inode
> *inode, u64 start, u64 len)
> }
>
> /**
> - * btrfs_delalloc_reserve_space - reserve data and metadata space for
> delalloc
> - * @inode: inode we're writing to
> - * @num_bytes: the number of bytes we want to allocate
> - *
> - * This will do the following things
> - *
> - * o reserve space in the data space info for num_bytes
> - * o reserve space in the metadata space info based on number of outstanding
> - * extents and how much csums will be needed
> - * o add to the inodes ->delalloc_bytes
> - * o add it to the fs_info's delalloc inodes list.
> - *
> - * This will return 0 for success and -ENOSPC if there is no space left.
> - */
> -int btrfs_delalloc_reserve_space(struct inode *inode, u64 num_bytes)
> -{
> - int ret;
> -
> - ret = btrfs_check_data_free_space(inode, num_bytes, num_bytes);
> - if (ret)
> - return ret;
> -
> - ret = btrfs_delalloc_reserve_metadata(inode, num_bytes);
> - if (ret) {
> - btrfs_free_reserved_data_space(inode, num_bytes);
> - return ret;
> - }
> -
> - return 0;
> -}
> -
> -/**
> * btrfs_delalloc_release_space - release data and metadata space for
> delalloc
> * @inode: inode we're releasing space for
> * @num_bytes: the number of bytes we want to free up
> diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
> index 26e59bc..124c1d4 100644
> --- a/fs/btrfs/file.c
> +++ b/fs/btrfs/file.c
> @@ -1532,7 +1532,7 @@ static noinline ssize_t __btrfs_buffered_write(struct
> file *file,
> goto reserve_metadata;
> }
> }
> - ret = __btrfs_check_data_free_space(inode, pos, write_bytes);
> + ret = btrfs_check_data_free_space(inode, pos, write_bytes);
> if (ret < 0)
> break;
>
> diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
> index ab639d3..9a0ad27 100644
> --- a/fs/btrfs/inode-map.c
> +++ b/fs/btrfs/inode-map.c
> @@ -488,7 +488,7 @@ again:
> /* Just to make sure we have enough space */
> prealloc += 8 * PAGE_CACHE_SIZE;
>
> - ret = __btrfs_delalloc_reserve_space(inode, 0, prealloc);
> + ret = btrfs_delalloc_reserve_space(inode, 0, prealloc);
> if (ret)
> goto out_put;
>
> diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
> index d70cb26..8c09197 100644
> --- a/fs/btrfs/inode.c
> +++ b/fs/btrfs/inode.c
> @@ -1985,8 +1985,8 @@ again:
> goto again;
> }
>
> - ret = __btrfs_delalloc_reserve_space(inode, page_start,
> - PAGE_CACHE_SIZE);
> + ret = btrfs_delalloc_reserve_space(inode, page_start,
> + PAGE_CACHE_SIZE);
> if (ret) {
> mapping_set_error(page->mapping, ret);
> end_extent_writepage(page, ret, page_start, page_end);
> @@ -4582,7 +4582,7 @@ int btrfs_truncate_page(struct inode *inode, loff_t
> from, loff_t len,
> if ((offset & (blocksize - 1)) == 0 &&
> (!len || ((len & (blocksize - 1)) == 0)))
> goto out;
> - ret = __btrfs_delalloc_reserve_space(inode,
> + ret = btrfs_delalloc_reserve_space(inode,
> round_down(from, PAGE_CACHE_SIZE), PAGE_CACHE_SIZE);
> if (ret)
> goto out;
> @@ -8375,7 +8375,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb,
> struct iov_iter *iter,
> mutex_unlock(&inode->i_mutex);
> relock = true;
> }
> - ret = __btrfs_delalloc_reserve_space(inode, offset, count);
> + ret = btrfs_delalloc_reserve_space(inode, offset, count);
> if (ret)
> goto out;
> outstanding_extents = div64_u64(count +
> @@ -8625,8 +8625,8 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma,
> struct vm_fault *vmf)
> page_start = page_offset(page);
> page_end = page_start + PAGE_CACHE_SIZE - 1;
>
> - ret = __btrfs_delalloc_reserve_space(inode, page_start,
> - PAGE_CACHE_SIZE);
> + ret = btrfs_delalloc_reserve_space(inode, page_start,
> + PAGE_CACHE_SIZE);
> if (!ret) {
> ret = file_update_time(vma->vm_file);
> reserved = 1;
> diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
> index e0291fc..c057317 100644
> --- a/fs/btrfs/ioctl.c
> +++ b/fs/btrfs/ioctl.c
> @@ -1119,7 +1119,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
>
> page_cnt = min_t(u64, (u64)num_pages, (u64)file_end - start_index + 1);
>
> - ret = __btrfs_delalloc_reserve_space(inode,
> + ret = btrfs_delalloc_reserve_space(inode,
> start_index << PAGE_CACHE_SHIFT,
> page_cnt << PAGE_CACHE_SHIFT);
> if (ret)
> diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
> index b759e96..5f7d7f5 100644
> --- a/fs/btrfs/qgroup.c
> +++ b/fs/btrfs/qgroup.c
> @@ -2088,7 +2088,7 @@ out:
> return ret;
> }
>
> -int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
> +static int qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
> {
> struct btrfs_root *quota_root;
> struct btrfs_qgroup *qgroup;
> @@ -2221,6 +2221,11 @@ out:
> spin_unlock(&fs_info->qgroup_lock);
> }
>
> +static inline void qgroup_free(struct btrfs_root *root, u64 num_bytes)
> +{
> + return btrfs_qgroup_free_refroot(root->fs_info, root->objectid,
> + num_bytes);
Same as '[PATCH 10/19]'.
Thanks,
Tsutomu
> +}
> void assert_qgroups_uptodate(struct btrfs_trans_handle *trans)
> {
> if (list_empty(&trans->qgroup_ref_list) && !trans->delayed_ref_elem.seq)
> @@ -2782,7 +2787,7 @@ static int reserve_data_range(struct btrfs_root *root,
> cur_start = next_start;
> }
> insert:
> - ret = btrfs_qgroup_reserve(root, reserve);
> + ret = qgroup_reserve(root, reserve);
> if (ret < 0)
> return ret;
> /* ranges must be inserted after we are sure it has enough space */
> @@ -3001,7 +3006,7 @@ static int __btrfs_qgroup_release_data(struct inode
> *inode, u64 start, u64 len,
> if (ret == 0)
> kfree(tmp);
> if (free_reserved)
> - btrfs_qgroup_free(BTRFS_I(inode)->root, reserved);
> + qgroup_free(BTRFS_I(inode)->root, reserved);
> spin_unlock(&map->lock);
> return 0;
> }
> @@ -3089,7 +3094,7 @@ void btrfs_qgroup_free_data_rsv_map(struct inode *inode)
> /* insanity check */
> WARN_ON(!root->fs_info->quota_enabled || !is_fstree(root->objectid));
>
> - btrfs_qgroup_free(root, dirty_map->reserved);
> + qgroup_free(root, dirty_map->reserved);
> spin_lock(&dirty_map->lock);
> while ((node = rb_first(&dirty_map->root)) != NULL) {
> struct data_rsv_range *range;
> @@ -3112,7 +3117,7 @@ int btrfs_qgroup_reserve_meta(struct btrfs_root *root,
> int num_bytes)
> return 0;
>
> BUG_ON(num_bytes != round_down(num_bytes, root->nodesize));
> - ret = btrfs_qgroup_reserve(root, num_bytes);
> + ret = qgroup_reserve(root, num_bytes);
> if (ret < 0)
> return ret;
> atomic_add(num_bytes, &root->qgroup_meta_rsv);
> @@ -3129,7 +3134,7 @@ void btrfs_qgroup_free_meta_all(struct btrfs_root *root)
> reserved = atomic_xchg(&root->qgroup_meta_rsv, 0);
> if (reserved == 0)
> return;
> - btrfs_qgroup_free(root, reserved);
> + qgroup_free(root, reserved);
> }
>
> void btrfs_qgroup_free_meta(struct btrfs_root *root, int num_bytes)
> @@ -3140,5 +3145,5 @@ void btrfs_qgroup_free_meta(struct btrfs_root *root,
> int num_bytes)
> BUG_ON(num_bytes != round_down(num_bytes, root->nodesize));
> WARN_ON(atomic_read(&root->qgroup_meta_rsv) < num_bytes);
> atomic_sub(num_bytes, &root->qgroup_meta_rsv);
> - btrfs_qgroup_free(root, num_bytes);
> + qgroup_free(root, num_bytes);
> }
> diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h
> index 2d507c8..da849db 100644
> --- a/fs/btrfs/qgroup.h
> +++ b/fs/btrfs/qgroup.h
> @@ -74,15 +74,8 @@ int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
> int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
> struct btrfs_fs_info *fs_info, u64 srcid, u64 objectid,
> struct btrfs_qgroup_inherit *inherit);
> -int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes);
> void btrfs_qgroup_free_refroot(struct btrfs_fs_info *fs_info,
> u64 ref_root, u64 num_bytes);
> -static inline void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes)
> -{
> - return btrfs_qgroup_free_refroot(root->fs_info, root->objectid,
> - num_bytes);
> -}
> -
> void assert_qgroups_uptodate(struct btrfs_trans_handle *trans);
>
> #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
>
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