[PATCH 2/2] Btrfs: kill root from btrfs_is_free_space_inode
From: Liu Bo <hidden>
Date: 2012-07-10 11:40:40
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
Since root can be fetched via BTRFS_I macro directly, we can save an args for btrfs_is_free_space_inode(). Signed-off-by: Liu Bo <redacted> --- fs/btrfs/btrfs_inode.h | 5 +++-- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/file-item.c | 2 +- fs/btrfs/inode.c | 22 +++++++++++----------- 4 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index b168238..21b8cfe 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h@@ -191,9 +191,10 @@ static inline void btrfs_i_size_write(struct inode *inode, u64 size) BTRFS_I(inode)->disk_i_size = size; } -static inline bool btrfs_is_free_space_inode(struct btrfs_root *root, - struct inode *inode) +static inline bool btrfs_is_free_space_inode(struct inode *inode) { + struct btrfs_root *root = BTRFS_I(inode)->root; + if (root == root->fs_info->tree_root && btrfs_ino(inode) != BTRFS_BTREE_INODE_OBJECTID) return true;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 6e1d367..07087f6 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c@@ -4444,7 +4444,7 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) int ret; /* Need to be holding the i_mutex here if we aren't free space cache */ - if (btrfs_is_free_space_inode(root, inode)) + if (btrfs_is_free_space_inode(inode)) flush = 0; if (flush && btrfs_transaction_in_commit(root->fs_info))
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 5d158d3..af87025 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c@@ -183,7 +183,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, * read from the commit root and sidestep a nasty deadlock * between reading the free space cache and updating the csum tree. */ - if (btrfs_is_free_space_inode(root, inode)) { + if (btrfs_is_free_space_inode(inode)) { path->search_commit_root = 1; path->skip_locking = 1; }
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a7d1921..5d463d4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c@@ -825,7 +825,7 @@ static noinline int cow_file_range(struct inode *inode, struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; int ret = 0; - BUG_ON(btrfs_is_free_space_inode(root, inode)); + BUG_ON(btrfs_is_free_space_inode(inode)); trans = btrfs_join_transaction(root); if (IS_ERR(trans)) { extent_clear_unlock_delalloc(inode,
@@ -1153,7 +1153,7 @@ static noinline int run_delalloc_nocow(struct inode *inode, return -ENOMEM; } - nolock = btrfs_is_free_space_inode(root, inode); + nolock = btrfs_is_free_space_inode(inode); if (nolock) trans = btrfs_join_transaction_nolock(root);
@@ -1466,7 +1466,7 @@ static void btrfs_set_bit_hook(struct inode *inode, if (!(state->state & EXTENT_DELALLOC) && (*bits & EXTENT_DELALLOC)) { struct btrfs_root *root = BTRFS_I(inode)->root; u64 len = state->end + 1 - state->start; - bool do_list = !btrfs_is_free_space_inode(root, inode); + bool do_list = !btrfs_is_free_space_inode(inode); if (*bits & EXTENT_FIRST_DELALLOC) { *bits &= ~EXTENT_FIRST_DELALLOC;
@@ -1501,7 +1501,7 @@ static void btrfs_clear_bit_hook(struct inode *inode, if ((state->state & EXTENT_DELALLOC) && (*bits & EXTENT_DELALLOC)) { struct btrfs_root *root = BTRFS_I(inode)->root; u64 len = state->end + 1 - state->start; - bool do_list = !btrfs_is_free_space_inode(root, inode); + bool do_list = !btrfs_is_free_space_inode(inode); if (*bits & EXTENT_FIRST_DELALLOC) { *bits &= ~EXTENT_FIRST_DELALLOC;
@@ -1612,7 +1612,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM; - if (btrfs_is_free_space_inode(root, inode)) + if (btrfs_is_free_space_inode(inode)) metadata = 2; if (!(rw & REQ_WRITE)) {
@@ -1869,7 +1869,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) int ret; bool nolock; - nolock = btrfs_is_free_space_inode(root, inode); + nolock = btrfs_is_free_space_inode(inode); if (test_bit(BTRFS_ORDERED_IOERR, &ordered_extent->flags)) { ret = -EIO;
@@ -2007,7 +2007,7 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end, ordered_extent->work.func = finish_ordered_fn; ordered_extent->work.flags = 0; - if (btrfs_is_free_space_inode(root, inode)) + if (btrfs_is_free_space_inode(inode)) workers = &root->fs_info->endio_freespace_worker; else workers = &root->fs_info->endio_write_workers;
@@ -2732,7 +2732,7 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans, * The data relocation inode should also be directly updated * without delay */ - if (!btrfs_is_free_space_inode(root, inode) + if (!btrfs_is_free_space_inode(inode) && root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID) { ret = btrfs_delayed_update_inode(trans, root, inode); if (!ret)
@@ -3743,7 +3743,7 @@ void btrfs_evict_inode(struct inode *inode) truncate_inode_pages(&inode->i_data, 0); if (inode->i_nlink && (btrfs_root_refs(&root->root_item) != 0 || - btrfs_is_free_space_inode(root, inode))) + btrfs_is_free_space_inode(inode))) goto no_delete; if (is_bad_inode(inode)) {
@@ -4457,7 +4457,7 @@ int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc) if (test_bit(BTRFS_INODE_DUMMY, &BTRFS_I(inode)->runtime_flags)) return 0; - if (btrfs_fs_closing(root->fs_info) && btrfs_is_free_space_inode(root, inode)) + if (btrfs_fs_closing(root->fs_info) && btrfs_is_free_space_inode(inode)) nolock = true; if (wbc->sync_mode == WB_SYNC_ALL) {
@@ -7046,7 +7046,7 @@ int btrfs_drop_inode(struct inode *inode) struct btrfs_root *root = BTRFS_I(inode)->root; if (btrfs_root_refs(&root->root_item) == 0 && - !btrfs_is_free_space_inode(root, inode)) + !btrfs_is_free_space_inode(inode)) return 1; else return generic_drop_inode(inode);
--
1.6.5.2