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From: Alessio Igor Bogani on 31 Mar 2010 10:20
The BKL was used into remount_fs pointed function for serialized access to
super_block from the others super_operations functions.

The function update_sb(), invoked by remount(), seems already well serialized
with &root->d_inode->i_mutex. Moreover don't seems there are others
super_operations functions in USB core for usbfs that should access to
super_block in a way which require BKL.

Signed-off-by: Alessio Igor Bogani <abogani(a)texware.it>
---
drivers/usb/core/inode.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 97b40ce..54972d6 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -39,7 +39,6 @@
#include <linux/parser.h>
#include <linux/notifier.h>
#include <linux/seq_file.h>
-#include <linux/smp_lock.h>
#include <asm/byteorder.h>
#include "usb.h"
#include "hcd.h"
@@ -265,13 +264,9 @@ static int remount(struct super_block *sb, int *flags, char *data)
return -EINVAL;
}

- lock_kernel();
-
if (usbfs_mount && usbfs_mount->mnt_sb)
update_sb(usbfs_mount->mnt_sb);

- unlock_kernel();
-
return 0;
}

--
1.6.3.3

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Prev: [PATCH] libertas/sdio: set ECSI bit for 1-bit transfers
Next: [PATCH][RESEND] x86: Do not write to VGA memory space if CONFIG_VGA_CONSOLE is undefined