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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2019-04-12 07:41:17 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-04-14 18:15:57 -0700 |
| commit | 7cd5006bdb6f6d9d9d7e68aa1d96b6e4a8b68bc5 (patch) | |
| tree | df47e1074e3c043f5206a0e6c0201ae421fc0462 /fs/xfs/xfs_ioctl.c | |
| parent | 1b6d968de22bffd85a60538d2628185b17228291 (diff) | |
| download | linux-7cd5006bdb6f6d9d9d7e68aa1d96b6e4a8b68bc5.tar.bz2 | |
xfs: add a new ioctl to describe allocation group geometry
Add a new ioctl to describe an allocation group's geometry.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index ec3c6c401ee7..b36abd453709 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -33,6 +33,7 @@ #include "xfs_fsmap.h" #include "scrub/xfs_scrub.h" #include "xfs_sb.h" +#include "xfs_ag.h" #include <linux/capability.h> #include <linux/cred.h> @@ -804,6 +805,26 @@ xfs_ioc_fsgeometry( return 0; } +STATIC int +xfs_ioc_ag_geometry( + struct xfs_mount *mp, + void __user *arg) +{ + struct xfs_ag_geometry ageo; + int error; + + if (copy_from_user(&ageo, arg, sizeof(ageo))) + return -EFAULT; + + error = xfs_ag_get_geometry(mp, ageo.ag_number, &ageo); + if (error) + return error; + + if (copy_to_user(arg, &ageo, sizeof(ageo))) + return -EFAULT; + return 0; +} + /* * Linux extended inode flags interface. */ @@ -1930,6 +1951,9 @@ xfs_file_ioctl( case XFS_IOC_FSGEOMETRY: return xfs_ioc_fsgeometry(mp, arg, 5); + case XFS_IOC_AG_GEOMETRY: + return xfs_ioc_ag_geometry(mp, arg); + case XFS_IOC_GETVERSION: return put_user(inode->i_generation, (int __user *)arg); |