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xfs: clean up inconsistent variable naming in xfs_swap_extent 

The swap extent ioctl passes in a target inode and a temporary inode
which are clearly named in the ioctl structure. The code then
assigns temp to target and vice versa, making it extremely difficult
to work out which inode is which later in the code.  Make this
consistent throughout the code.

Also make xfs_swap_extent static as there are no external users of
the function.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Dave Chinner 2010-01-14 01:33:56 +00:00 committed by Alex Elder
parent 3a85cd96d3
commit 6bded0f383
2 changed files with 22 additions and 19 deletions
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38
fs/xfs/xfs_dfrag.c
View File

@ -45,15 +45,21 @@
#include "xfs_vnodeops.h"
#include "xfs_trace.h"
static int xfs_swap_extents(
xfs_inode_t *ip, /* target inode */
xfs_inode_t *tip, /* tmp inode */
xfs_swapext_t *sxp);
/*
* Syssgi interface for swapext
* ioctl interface for swapext
*/
int
xfs_swapext(
xfs_swapext_t *sxp)
{
xfs_inode_t *ip, *tip;
struct file *file, *target_file;
struct file *file, *tmp_file;
int error = 0;
/* Pull information for the target fd */
@ -68,46 +74,46 @@ xfs_swapext(
goto out_put_file;
}
target_file = fget((int)sxp->sx_fdtmp);
if (!target_file) {
tmp_file = fget((int)sxp->sx_fdtmp);
if (!tmp_file) {
error = XFS_ERROR(EINVAL);
goto out_put_file;
}
if (!(target_file->f_mode & FMODE_WRITE) ||
(target_file->f_flags & O_APPEND)) {
if (!(tmp_file->f_mode & FMODE_WRITE) ||
(tmp_file->f_flags & O_APPEND)) {
error = XFS_ERROR(EBADF);
goto out_put_target_file;
goto out_put_tmp_file;
}
if (IS_SWAPFILE(file->f_path.dentry->d_inode) ||
IS_SWAPFILE(target_file->f_path.dentry->d_inode)) {
IS_SWAPFILE(tmp_file->f_path.dentry->d_inode)) {
error = XFS_ERROR(EINVAL);
goto out_put_target_file;
goto out_put_tmp_file;
}
ip = XFS_I(file->f_path.dentry->d_inode);
tip = XFS_I(target_file->f_path.dentry->d_inode);
tip = XFS_I(tmp_file->f_path.dentry->d_inode);
if (ip->i_mount != tip->i_mount) {
error = XFS_ERROR(EINVAL);
goto out_put_target_file;
goto out_put_tmp_file;
}
if (ip->i_ino == tip->i_ino) {
error = XFS_ERROR(EINVAL);
goto out_put_target_file;
goto out_put_tmp_file;
}
if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
error = XFS_ERROR(EIO);
goto out_put_target_file;
goto out_put_tmp_file;
}
error = xfs_swap_extents(ip, tip, sxp);
out_put_target_file:
fput(target_file);
out_put_tmp_file:
fput(tmp_file);
out_put_file:
fput(file);
out:
@ -186,7 +192,7 @@ xfs_swap_extents_check_format(
return 0;
}
int
static int
xfs_swap_extents(
xfs_inode_t *ip, /* target inode */
xfs_inode_t *tip, /* tmp inode */

3
fs/xfs/xfs_dfrag.h
View File

@ -48,9 +48,6 @@ typedef struct xfs_swapext
*/
int xfs_swapext(struct xfs_swapext *sx);
int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
struct xfs_swapext *sxp);
#endif /* __KERNEL__ */
#endif /* __XFS_DFRAG_H__ */