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| author | Dave Chinner | 2015-02-23 11:22:54 +0100 |
|---|---|---|
| committer | Dave Chinner | 2015-02-23 11:22:54 +0100 |
| commit | bab98bbe6e1e38bf2fa5018a195608553095f51b (patch) | |
| tree | 7d22e47227132f29ad6f9d7e116d1e4eabfca04f /fs/xfs/xfs_mount.c | |
| parent | xfs: Remove icsb infrastructure (diff) | |
| download | kernel-qcow2-linux-bab98bbe6e1e38bf2fa5018a195608553095f51b.tar.gz kernel-qcow2-linux-bab98bbe6e1e38bf2fa5018a195608553095f51b.tar.xz kernel-qcow2-linux-bab98bbe6e1e38bf2fa5018a195608553095f51b.zip | |
xfs: introduce xfs_mod_frextents
Add a new helper to modify the incore counter of free realtime
extents. This matches the helpers used for inode and data block
counters, and removes a significant users of the xfs_mod_incore_sb()
interface.
Based on a patch originally from Christoph Hellwig.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_mount.c')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 05b392e35e35..df4c32fdc706 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1198,6 +1198,24 @@ fdblocks_enospc: return -ENOSPC; } +int +xfs_mod_frextents( + struct xfs_mount *mp, + int64_t delta) +{ + int64_t lcounter; + int ret = 0; + + spin_lock(&mp->m_sb_lock); + lcounter = mp->m_sb.sb_frextents + delta; + if (lcounter < 0) + ret = -ENOSPC; + else + mp->m_sb.sb_frextents = lcounter; + spin_unlock(&mp->m_sb_lock); + return ret; +} + /* * xfs_mod_incore_sb_unlocked() is a utility routine commonly used to apply * a delta to a specified field in the in-core superblock. Simply @@ -1227,16 +1245,9 @@ xfs_mod_incore_sb_unlocked( case XFS_SBS_ICOUNT: case XFS_SBS_IFREE: case XFS_SBS_FDBLOCKS: + case XFS_SBS_FREXTENTS: ASSERT(0); return -EINVAL; - case XFS_SBS_FREXTENTS: - lcounter = (long long)mp->m_sb.sb_frextents; - lcounter += delta; - if (lcounter < 0) { - return -ENOSPC; - } - mp->m_sb.sb_frextents = lcounter; - return 0; case XFS_SBS_DBLOCKS: lcounter = (long long)mp->m_sb.sb_dblocks; lcounter += delta; |