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-rw-r--r--fs/ufs/super.c28
1 files changed, 10 insertions, 18 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index c1183f9f69dc..b879f1ba3439 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -697,7 +697,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
unsigned flags;
lock_ufs(sb);
- mutex_lock(&UFS_SB(sb)->s_lock);
UFSD("ENTER\n");
@@ -715,7 +714,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
ufs_put_cstotal(sb);
UFSD("EXIT\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
@@ -760,6 +758,7 @@ static void ufs_put_super(struct super_block *sb)
ubh_brelse_uspi (sbi->s_uspi);
kfree (sbi->s_uspi);
+ mutex_destroy(&sbi->mutex);
kfree (sbi);
sb->s_fs_info = NULL;
UFSD("EXIT\n");
@@ -786,6 +785,14 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
flags = 0;
UFSD("ENTER\n");
+
+#ifndef CONFIG_UFS_FS_WRITE
+ if (!(sb->s_flags & MS_RDONLY)) {
+ printk("ufs was compiled with read-only support, "
+ "can't be mounted as read-write\n");
+ return -EROFS;
+ }
+#endif
sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL);
if (!sbi)
@@ -795,15 +802,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
-#ifndef CONFIG_UFS_FS_WRITE
- if (!(sb->s_flags & MS_RDONLY)) {
- printk("ufs was compiled with read-only support, "
- "can't be mounted as read-write\n");
- goto failed;
- }
-#endif
mutex_init(&sbi->mutex);
- mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
/*
@@ -1257,6 +1256,7 @@ magic_found:
return 0;
failed:
+ mutex_destroy(&sbi->mutex);
if (ubh)
ubh_brelse_uspi (uspi);
kfree (uspi);
@@ -1280,7 +1280,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
sync_filesystem(sb);
lock_ufs(sb);
- mutex_lock(&UFS_SB(sb)->s_lock);
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
usb1 = ubh_get_usb_first(uspi);
@@ -1294,7 +1293,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt = 0;
ufs_set_opt (new_mount_opt, ONERROR_LOCK);
if (!ufs_parse_options (data, &new_mount_opt)) {
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
@@ -1302,14 +1300,12 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt |= ufstype;
} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
printk("ufstype can't be changed during remount\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
UFS_SB(sb)->s_mount_opt = new_mount_opt;
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
@@ -1334,7 +1330,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#ifndef CONFIG_UFS_FS_WRITE
printk("ufs was compiled with read-only support, "
"can't be mounted as read-write\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
#else
@@ -1344,13 +1339,11 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
printk("this ufstype is read-only supported\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if (!ufs_read_cylinder_structures(sb)) {
printk("failed during remounting\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EPERM;
}
@@ -1358,7 +1351,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#endif
}
UFS_SB(sb)->s_mount_opt = new_mount_opt;
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}