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authorEric Sandeen <sandeen@redhat.com>2015-10-12 10:21:22 +0300
committerDave Chinner <david@fromorbit.com>2015-10-12 10:21:22 +0300
commit9e92054e8e049f8f4c64d2c6961b2a7e3e13977f (patch)
treefb22b5dc75b8049a663990e5238a2ebcf3e7b79a /fs/xfs/xfs_stats.c
parentff6d6af2351caea7db681f4539d0d893e400557a (diff)
downloadlinux-9e92054e8e049f8f4c64d2c6961b2a7e3e13977f.tar.xz
xfs: simplify /proc teardown & error handling
remove_proc_subtree() was added in 3.9, and can be used to simplify our procfile creation error handling and cleanup, removing the nested gotos. It simply removes fs/xfs and everything created under it. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_stats.c')
-rw-r--r--fs/xfs/xfs_stats.c26
1 files changed, 7 insertions, 19 deletions
diff --git a/fs/xfs/xfs_stats.c b/fs/xfs/xfs_stats.c
index 3348b0b6177d..bd50619fa8c9 100644
--- a/fs/xfs/xfs_stats.c
+++ b/fs/xfs/xfs_stats.c
@@ -165,41 +165,29 @@ int
xfs_init_procfs(void)
{
if (!proc_mkdir("fs/xfs", NULL))
- goto out;
+ return -ENOMEM;
if (!proc_symlink("fs/xfs/stat", NULL,
"/sys/fs/xfs/stats/stats"))
- goto out_remove_xfs_dir;
+ goto out;
#ifdef CONFIG_XFS_QUOTA
if (!proc_create("fs/xfs/xqmstat", 0, NULL,
&xqmstat_proc_fops))
- goto out_remove_stat_file;
+ goto out;
if (!proc_create("fs/xfs/xqm", 0, NULL,
&xqm_proc_fops))
- goto out_remove_xqmstat_file;
+ goto out;
#endif
return 0;
-#ifdef CONFIG_XFS_QUOTA
- out_remove_xqmstat_file:
- remove_proc_entry("fs/xfs/xqmstat", NULL);
- out_remove_stat_file:
- remove_proc_entry("fs/xfs/stat", NULL);
-#endif
- out_remove_xfs_dir:
- remove_proc_entry("fs/xfs", NULL);
- out:
+out:
+ remove_proc_subtree("fs/xfs", NULL);
return -ENOMEM;
}
void
xfs_cleanup_procfs(void)
{
-#ifdef CONFIG_XFS_QUOTA
- remove_proc_entry("fs/xfs/xqm", NULL);
- remove_proc_entry("fs/xfs/xqmstat", NULL);
-#endif
- remove_proc_entry("fs/xfs/stat", NULL);
- remove_proc_entry("fs/xfs", NULL);
+ remove_proc_subtree("fs/xfs", NULL);
}