[PATCH] fs: Drop CAP_SYS_RAWIO requirement for FIBMAP

[Seth Forshee]

The information exposed by FIBMAP is not privileged and is
similar to the information provided by FIEMAP, which does not
require privileges. According to [1] the reason the capability
check was originally added was to prevent crashing the kernel
by passing invalid arguments, but this should no longer be a
problem, so this requirement can be removed.

[1] http://www.gossamer-threads.com/lists/linux/kernel/103611

Cc: "Serge E. Hallyn" <serge@xxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>
---
 fs/ioctl.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ioctl.c b/fs/ioctl.c
index 5d01d2638ca5..c963d82b0de8 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -55,8 +55,6 @@ static int ioctl_fibmap(struct file *filp, int __user *p)
 	/* do we support this mess? */
 	if (!mapping->a_ops->bmap)
 		return -EINVAL;
-	if (!capable(CAP_SYS_RAWIO))
-		return -EPERM;
 	res = get_user(block, p);
 	if (res)
 		return res;
-- 
1.9.1

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