Add support for the GETFSLABEL ioctl in gfs2.
I tested this patch and it works as expected.
Signed-off-by: Steve Whitehouse <swhit...@redhat.com>
Tested-by: Abhi Das <a...@redhat.com>
---
fs/gfs2/file.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 08369c6..6510f4e 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -314,6 +314,17 @@ static int gfs2_set_flags(struct file *filp, u32 __user
*ptr)
return do_gfs2_set_flags(filp, gfsflags, mask);
}
+static int gfs2_getlabel(struct file *filp, char __user *label)
+{
+ struct inode *inode = file_inode(filp);
+ struct gfs2_sbd *sdp = GFS2_SB(inode);
+
+ if (copy_to_user(label, sdp->sd_sb.sb_locktable, GFS2_LOCKNAME_LEN))
+ return -EFAULT;
+
+ return 0;
+}
+
static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
switch(cmd) {
@@ -323,7 +334,10 @@ static long gfs2_ioctl(struct file *filp, unsigned int
cmd, unsigned long arg)
return gfs2_set_flags(filp, (u32 __user *)arg);
case FITRIM:
return gfs2_fitrim(filp, (void __user *)arg);
+ case FS_IOC_GETFSLABEL:
+ return gfs2_getlabel(filp, (char __user *)arg);
}
+
return -ENOTTY;
}
--
2.4.11
