lkml.org 
[lkml]   [2018]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] xfs_bmap_util: use swap macro
Make use of the swap macro and remove some unnecessary variables.
This makes the code easier to read and maintain. Also, reduces the
stack usage.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
fs/xfs/xfs_bmap_util.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 83b1e8c..4b0b16f 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -1691,7 +1691,6 @@ xfs_swap_extent_forks(
int *src_log_flags,
int *target_log_flags)
{
- struct xfs_ifork tempifp, *ifp, *tifp;
xfs_filblks_t aforkblks = 0;
xfs_filblks_t taforkblks = 0;
xfs_extnum_t junk;
@@ -1733,11 +1732,7 @@ xfs_swap_extent_forks(
/*
* Swap the data forks of the inodes
*/
- ifp = &ip->i_df;
- tifp = &tip->i_df;
- tempifp = *ifp; /* struct copy */
- *ifp = *tifp; /* struct copy */
- *tifp = tempifp; /* struct copy */
+ swap(ip->i_df, tip->i_df);

/*
* Fix the on-disk inode values
@@ -1987,14 +1982,10 @@ xfs_swap_extents(

/* Swap the cow forks. */
if (xfs_sb_version_hasreflink(&mp->m_sb)) {
- xfs_extnum_t extnum;
-
ASSERT(ip->i_cformat == XFS_DINODE_FMT_EXTENTS);
ASSERT(tip->i_cformat == XFS_DINODE_FMT_EXTENTS);

- extnum = ip->i_cnextents;
- ip->i_cnextents = tip->i_cnextents;
- tip->i_cnextents = extnum;
+ swap(ip->i_cnextents, tip->i_cnextents);

cowfp = ip->i_cowfp;
ip->i_cowfp = tip->i_cowfp;
--
2.7.4
\
 
 \ /
  Last update: 2018-07-09 16:06    [W:0.023 / U:31.168 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site