[Cluster-devel] [GFS2 PATCH] gfs2: getlabel support
Andrew Price
anprice at redhat.com
Tue Aug 21 09:03:11 UTC 2018
On 21/08/18 04:21, Abhi Das wrote:
> Add support for the GETFSLABEL ioctl in gfs2.
> I tested this patch and it works as expected.
>
> Signed-off-by: Steve Whitehouse <swhiteho at redhat.com>
> Tested-by: Abhi Das <adas at redhat.com>
The message should probably start with a From: so that git am uses the
correct author. Looks good otherwise.
Cheers,
Andy
> ---
> 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;
> }
>
>
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