From: Dave Chinner Date: Mon, 23 Feb 2015 10:19:53 +0000 (+1100) Subject: xfs: use generic percpu counters for free inode counter X-Git-Tag: omap-for-v4.1/fixes-rc1~44^2~6^2~5 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e88b64ea1f3da64dbb52636377be295c90367377;p=pandora-kernel.git 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 Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- 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); Reading git-diff-tree failed