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authorEric Sandeen <sandeen@redhat.com>2015-10-12 18:21:22 +1100
committerDave Chinner <david@fromorbit.com>2015-10-12 18:21:22 +1100
commit9e92054e8e049f8f4c64d2c6961b2a7e3e13977f (patch)
treefb22b5dc75b8049a663990e5238a2ebcf3e7b79a /fs/xfs
parentff6d6af2351caea7db681f4539d0d893e400557a (diff)
downloadlinux-9e92054e8e049f8f4c64d2c6961b2a7e3e13977f.tar.gz
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')
-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);
 }