diff options
| author |   Richard Wareing <rwareing@fb.com> | 2018-01-08 10:41:33 -0800 |
|---|---|---|
| committer |   Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-08 10:41:33 -0800 |
| commit | a0158315964136d1a43c1a726ac4381ae3a76153 (patch) | |
| tree | bc0bac214519561eb7bf8ce249b2dad5901fe9c2 | |
| parent | Linux 4.15-rc7 (diff) | |
| download | linux-dev-a0158315964136d1a43c1a726ac4381ae3a76153.tar.xz linux-dev-a0158315964136d1a43c1a726ac4381ae3a76153.zip | |
xfs: Show realtime device stats on statfs calls if realtime flags set
- Reports realtime device free blocks in statfs calls if (realtime)
inheritance bit is set on the inode of directory, or realtime flag
in the case of files. This is a bit more intuitive, especially for
use-cases which are using a much larger device for the realtime device.
- Add XFS_IS_REALTIME_MOUNT option to gate based on the existence of a
realtime device on the mount, similar to the XFS_IS_REALTIME_INODE
option.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Richard Wareing <rwareing@fb.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
| -rw-r--r-- | fs/xfs/xfs_linux.h | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index 99562ec0de56..74d3576c8043 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -285,8 +285,10 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y) #define XFS_IS_REALTIME_INODE(ip) \ (((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) && \ (ip)->i_mount->m_rtdev_targp) +#define XFS_IS_REALTIME_MOUNT(mp) ((mp)->m_rtdev_targp ? 1 : 0) #else #define XFS_IS_REALTIME_INODE(ip) (0) +#define XFS_IS_REALTIME_MOUNT(mp) (0) #endif #endif /* __XFS_LINUX__ */ diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 1dacccc367f8..a66335599c7d 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1153,6 +1153,14 @@ xfs_fs_statfs( ((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD))) == (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD)) xfs_qm_statvfs(ip, statp); + + if (XFS_IS_REALTIME_MOUNT(mp) && + (ip->i_d.di_flags & (XFS_DIFLAG_RTINHERIT | XFS_DIFLAG_REALTIME))) { + statp->f_blocks = sbp->sb_rblocks; + statp->f_bavail = statp->f_bfree = + sbp->sb_frextents * sbp->sb_rextsize; + } + return 0; } |