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btrfs: root->fs_info cleanup, add fs_info convenience variables

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In routines where someptr->fs_info is referenced multiple times, we
introduce a convenience variable.  This makes the code considerably
more readable.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jeff Mahoney
2016-06-22 18:54:23 -04:00
committed by David Sterba
parent 6202df6921
commit 0b246afa62
33 changed files with 2251 additions and 2016 deletions
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17
fs/btrfs/send.c
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@@ -1431,9 +1431,9 @@ static int find_extent_clone(struct send_ctx *sctx,
extent_item_pos = logical - found_key.objectid;
else
extent_item_pos = 0;
ret = iterate_extent_inodes(fs_info,
found_key.objectid, extent_item_pos, 1,
__iterate_backrefs, backref_ctx);
ret = iterate_extent_inodes(fs_info, found_key.objectid,
extent_item_pos, 1, __iterate_backrefs,
backref_ctx);
if (ret < 0)
goto out;
@@ -6137,17 +6137,17 @@ static void btrfs_root_dec_send_in_progress(struct btrfs_root* root)
*/
if (root->send_in_progress < 0)
btrfs_err(root->fs_info,
"send_in_progres unbalanced %d root %llu",
root->send_in_progress, root->root_key.objectid);
"send_in_progres unbalanced %d root %llu",
root->send_in_progress, root->root_key.objectid);
spin_unlock(&root->root_item_lock);
}
long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
{
int ret = 0;
struct btrfs_root *send_root;
struct btrfs_root *send_root = BTRFS_I(file_inode(mnt_file))->root;
struct btrfs_fs_info *fs_info = send_root->fs_info;
struct btrfs_root *clone_root;
struct btrfs_fs_info *fs_info;
struct btrfs_ioctl_send_args *arg = NULL;
struct btrfs_key key;
struct send_ctx *sctx = NULL;
@@ -6161,9 +6161,6 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
send_root = BTRFS_I(file_inode(mnt_file))->root;
fs_info = send_root->fs_info;
/*
* The subvolume must remain read-only during send, protect against
* making it RW. This also protects against deletion.