From: Jan Blunck <jblunck@infradead.org>
Date: Wed, 24 Feb 2010 12:25:30 +0000 (+0100)
Subject: BKL: Remove BKL from HFS
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8526fb37c907f8f4eb9965367af6aeec76aedbce;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

BKL: Remove BKL from HFS

The BKL is only used in put_super and fill_super that are both protected by
the superblocks s_umount rw_semaphore. Therefore it is safe to remove the
BKL entirely.

Signed-off-by: Jan Blunck <jblunck@infradead.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 3069416fa8ef..33254160f650 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -20,7 +20,6 @@
 #include <linux/parser.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/vfs.h>
 
 #include "hfs_fs.h"
@@ -79,15 +78,11 @@ static int hfs_sync_fs(struct super_block *sb, int wait)
  */
 static void hfs_put_super(struct super_block *sb)
 {
-	lock_kernel();
-
 	if (sb->s_dirt)
 		hfs_write_super(sb);
 	hfs_mdb_close(sb);
 	/* release the MDB's resources */
 	hfs_mdb_put(sb);
-
-	unlock_kernel();
 }
 
 /*
@@ -382,13 +377,10 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *root_inode;
 	int res;
 
-	lock_kernel();
-
 	sbi = kzalloc(sizeof(struct hfs_sb_info), GFP_KERNEL);
-	if (!sbi) {
-		unlock_kernel();
+	if (!sbi)
 		return -ENOMEM;
-	}
+
 	sb->s_fs_info = sbi;
 	INIT_HLIST_HEAD(&sbi->rsrc_inodes);
 
@@ -439,7 +431,6 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_root->d_op = &hfs_dentry_operations;
 
 	/* everything's okay */
-	unlock_kernel();
 	return 0;
 
 bail_iput:
@@ -448,7 +439,6 @@ bail_no_root:
 	printk(KERN_ERR "hfs: get root inode failed.\n");
 bail:
 	hfs_mdb_put(sb);
-	unlock_kernel();
 	return res;
 }