From: jeffm@suse.com
To: linux-btrfs@vger.kernel.org
Cc: Jeff Mahoney <jeffm@suse.com>
Subject: [PATCH 4/8] btrfs: free-space-cache, clean up unnecessary root arguments
Date: Wed, 15 Feb 2017 16:28:30 -0500 [thread overview]
Message-ID: <1487194114-12786-5-git-send-email-jeffm@suse.com> (raw)
In-Reply-To: <1487194114-12786-1-git-send-email-jeffm@suse.com>
From: Jeff Mahoney <jeffm@suse.com>
The free space cache APIs accept a root but always use the tree root.
Also, btrfs_truncate_free_space_cache accepts a root AND an inode but
the inode always points to the root anyway, so let's just pass the inode.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
fs/btrfs/extent-tree.c | 9 +++++----
fs/btrfs/free-space-cache.c | 25 +++++++++++--------------
fs/btrfs/free-space-cache.h | 7 +++----
fs/btrfs/inode-map.c | 2 +-
fs/btrfs/relocation.c | 5 ++---
5 files changed, 22 insertions(+), 26 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 20bedc7..a557249 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3372,7 +3372,7 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
if (trans->aborted)
return 0;
again:
- inode = lookup_free_space_inode(root, block_group, path);
+ inode = lookup_free_space_inode(fs_info, block_group, path);
if (IS_ERR(inode) && PTR_ERR(inode) != -ENOENT) {
ret = PTR_ERR(inode);
btrfs_release_path(path);
@@ -3386,7 +3386,8 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
if (block_group->ro)
goto out_free;
- ret = create_free_space_inode(root, trans, block_group, path);
+ ret = create_free_space_inode(fs_info, trans, block_group,
+ path);
if (ret)
goto out_free;
goto again;
@@ -3428,7 +3429,7 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
if (ret)
goto out_put;
- ret = btrfs_truncate_free_space_cache(root, trans, NULL, inode);
+ ret = btrfs_truncate_free_space_cache(trans, NULL, inode);
if (ret)
goto out_put;
}
@@ -10319,7 +10320,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
* get the inode first so any iput calls done for the io_list
* aren't the final iput (no unlinks allowed now)
*/
- inode = lookup_free_space_inode(tree_root, block_group, path);
+ inode = lookup_free_space_inode(fs_info, block_group, path);
mutex_lock(&trans->transaction->cache_write_mutex);
/*
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 7015892..61a72fb 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -94,12 +94,11 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
return inode;
}
-struct inode *lookup_free_space_inode(struct btrfs_root *root,
+struct inode *lookup_free_space_inode(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache
*block_group, struct btrfs_path *path)
{
struct inode *inode = NULL;
- struct btrfs_fs_info *fs_info = root->fs_info;
u32 flags = BTRFS_INODE_NODATASUM | BTRFS_INODE_NODATACOW;
spin_lock(&block_group->lock);
@@ -109,7 +108,7 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root,
if (inode)
return inode;
- inode = __lookup_free_space_inode(root, path,
+ inode = __lookup_free_space_inode(fs_info->tree_root, path,
block_group->key.objectid);
if (IS_ERR(inode))
return inode;
@@ -192,7 +191,7 @@ static int __create_free_space_inode(struct btrfs_root *root,
return 0;
}
-int create_free_space_inode(struct btrfs_root *root,
+int create_free_space_inode(struct btrfs_fs_info *fs_info,
struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path)
@@ -200,11 +199,11 @@ int create_free_space_inode(struct btrfs_root *root,
int ret;
u64 ino;
- ret = btrfs_find_free_objectid(root, &ino);
+ ret = btrfs_find_free_objectid(fs_info->tree_root, &ino);
if (ret < 0)
return ret;
- return __create_free_space_inode(root, trans, path, ino,
+ return __create_free_space_inode(fs_info->tree_root, trans, path, ino,
block_group->key.objectid);
}
@@ -227,11 +226,11 @@ int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info,
return ret;
}
-int btrfs_truncate_free_space_cache(struct btrfs_root *root,
- struct btrfs_trans_handle *trans,
+int btrfs_truncate_free_space_cache(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct inode *inode)
{
+ struct btrfs_root *root = BTRFS_I(inode)->root;
int ret = 0;
struct btrfs_path *path = btrfs_alloc_path();
bool locked = false;
@@ -828,7 +827,6 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache *block_group)
{
struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
- struct btrfs_root *root = fs_info->tree_root;
struct inode *inode;
struct btrfs_path *path;
int ret = 0;
@@ -852,7 +850,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
path->search_commit_root = 1;
path->skip_locking = 1;
- inode = lookup_free_space_inode(root, block_group, path);
+ inode = lookup_free_space_inode(fs_info, block_group, path);
if (IS_ERR(inode)) {
btrfs_free_path(path);
return 0;
@@ -1378,7 +1376,6 @@ int btrfs_write_out_cache(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path)
{
- struct btrfs_root *root = fs_info->tree_root;
struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
struct inode *inode;
int ret = 0;
@@ -1390,12 +1387,12 @@ int btrfs_write_out_cache(struct btrfs_fs_info *fs_info,
}
spin_unlock(&block_group->lock);
- inode = lookup_free_space_inode(root, block_group, path);
+ inode = lookup_free_space_inode(fs_info, block_group, path);
if (IS_ERR(inode))
return 0;
- ret = __btrfs_write_out_cache(root, inode, ctl, block_group,
- &block_group->io_ctl, trans,
+ ret = __btrfs_write_out_cache(fs_info->tree_root, inode, ctl,
+ block_group, &block_group->io_ctl, trans,
path, block_group->key.objectid);
if (ret) {
#ifdef DEBUG
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index 6f3c025..79eca4c 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -51,18 +51,17 @@ struct btrfs_free_space_op {
struct btrfs_io_ctl;
-struct inode *lookup_free_space_inode(struct btrfs_root *root,
+struct inode *lookup_free_space_inode(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache
*block_group, struct btrfs_path *path);
-int create_free_space_inode(struct btrfs_root *root,
+int create_free_space_inode(struct btrfs_fs_info *fs_info,
struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path);
int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *rsv);
-int btrfs_truncate_free_space_cache(struct btrfs_root *root,
- struct btrfs_trans_handle *trans,
+int btrfs_truncate_free_space_cache(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct inode *inode);
int load_free_space_cache(struct btrfs_fs_info *fs_info,
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 144b119..3bbb8f0 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -467,7 +467,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
}
if (i_size_read(inode) > 0) {
- ret = btrfs_truncate_free_space_cache(root, trans, NULL, inode);
+ ret = btrfs_truncate_free_space_cache(trans, NULL, inode);
if (ret) {
if (ret != -ENOSPC)
btrfs_abort_transaction(trans, ret);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 2e9deb9..bee4b5b 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3543,7 +3543,7 @@ static int delete_block_group_cache(struct btrfs_fs_info *fs_info,
goto out;
}
- ret = btrfs_truncate_free_space_cache(root, trans, block_group, inode);
+ ret = btrfs_truncate_free_space_cache(trans, block_group, inode);
btrfs_end_transaction(trans);
btrfs_btree_balance_dirty(fs_info);
@@ -4347,8 +4347,7 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
goto out;
}
- inode = lookup_free_space_inode(fs_info->tree_root, rc->block_group,
- path);
+ inode = lookup_free_space_inode(fs_info, rc->block_group, path);
btrfs_free_path(path);
if (!IS_ERR(inode))
--
2.7.1
next prev parent reply other threads:[~2017-02-15 21:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-15 21:28 [PATCH 0/8] btrfs: cleanup patches jeffm
2017-02-15 21:28 ` [PATCH 1/8] btrfs: pass fs_info to (more) routines that are only called with extent_root jeffm
2017-02-15 21:28 ` [PATCH 2/8] btrfs: flush_space always takes fs_info->fs_root jeffm
2017-02-15 21:28 ` [PATCH 3/8] btrfs: convert btrfs_inc_block_group_ro to accept fs_info jeffm
2017-02-15 21:28 ` jeffm [this message]
2017-02-15 22:06 ` [PATCH 4/8] btrfs: free-space-cache, clean up unnecessary root arguments Jeff Mahoney
2017-02-15 21:28 ` [PATCH 5/8] btrfs: btrfs_wait_cache_io_root doesn't use path argument jeffm
2017-02-15 22:04 ` Jeff Mahoney
2017-02-15 21:28 ` [PATCH 6/8] btrfs: btrfs_truncate_free_space_cache always allocates path jeffm
2017-02-15 21:28 ` [PATCH 7/8] btrfs: drop unused extent_op arg from btrfs_add_delayed_data_ref jeffm
2017-02-15 21:28 ` [PATCH 8/8] btrfs: use btrfs_debug instead of pr_debug in transaction abort jeffm
2017-02-16 16:41 ` [PATCH 0/8] btrfs: cleanup patches David Sterba
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