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| author |   Dave Chinner <dchinner@redhat.com> | 2015-02-23 21:19:53 +1100 |
|---|---|---|
| committer |   Dave Chinner <david@fromorbit.com> | 2015-02-23 21:19:53 +1100 |
| commit | e88b64ea1f3da64dbb52636377be295c90367377 (patch) | |
| tree | 0031d3ed6f296981fdcd2b9f4cf3cebc8b557ab8 /fs/xfs/libxfs/xfs_sb.c | |
| parent | xfs: use generic percpu counters for inode counter (diff) | |
| download | linux-dev-e88b64ea1f3da64dbb52636377be295c90367377.tar.xz linux-dev-e88b64ea1f3da64dbb52636377be295c90367377.zip | |
xfs: use generic percpu counters for free inode counter
XFS has hand-rolled per-cpu counters for the superblock since before
there was any generic implementation. The free inode counter is not
used for any limit enforcement - the per-AG free inode counters are
used during allocation to determine if there are inode available for
allocation.
Hence we don't need any of the complexity of the hand-rolled
counters and we can simply replace them with generic per-cpu
counters similar to the inode counter.
This version introduces a xfs_mod_ifree() helper function 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/libxfs/xfs_sb.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 017cb2fc53eb..b66aeab99cfb 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -772,6 +772,7 @@ xfs_log_sb( struct xfs_buf *bp = xfs_trans_getsb(tp, mp, 0); mp->m_sb.sb_icount = percpu_counter_sum(&mp->m_icount); + mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree); xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); |