From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E01867F6D for ; Tue, 2 Jun 2015 13:42:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 754ECAC001 for ; Tue, 2 Jun 2015 11:42:05 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id at3eXCd1GyhwlObW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 02 Jun 2015 11:42:04 -0700 (PDT) Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 8AF5BB7CC7 for ; Tue, 2 Jun 2015 18:42:04 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-237.bos.redhat.com [10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t52Ig4YZ019881 for ; Tue, 2 Jun 2015 14:42:04 -0400 From: Brian Foster Subject: [PATCH 05/28] xfs: use sparse chunk alignment for min. inode allocation requirement Date: Tue, 2 Jun 2015 14:41:38 -0400 Message-Id: <1433270521-62026-6-git-send-email-bfoster@redhat.com> In-Reply-To: <1433270521-62026-1-git-send-email-bfoster@redhat.com> References: <1433270521-62026-1-git-send-email-bfoster@redhat.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com xfs_ialloc_ag_select() iterates through the allocation groups looking for free inodes or free space to determine whether to allow an inode allocation to proceed. If no free inodes are available, it assumes that an AG must have an extent longer than mp->m_ialloc_blks. Sparse inode chunk support currently allows for allocations smaller than the traditional inode chunk size specified in m_ialloc_blks. The current minimum sparse allocation is set in the superblock sb_spino_align field at mkfs time. Create a new m_ialloc_min_blks field in xfs_mount and use this to represent the minimum supported allocation size for inode chunks. Initialize m_ialloc_min_blks at mount time based on whether sparse inodes are supported. Signed-off-by: Brian Foster --- include/xfs_mount.h | 2 ++ libxfs/xfs_ialloc.c | 2 +- libxfs/xfs_sb.c | 5 +++++ 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/include/xfs_mount.h b/include/xfs_mount.h index 70bdea0..998439e 100644 --- a/include/xfs_mount.h +++ b/include/xfs_mount.h @@ -73,6 +73,8 @@ typedef struct xfs_mount { uint m_attroffset; /* inode attribute offset */ int m_ialloc_inos; /* inodes in inode allocation */ int m_ialloc_blks; /* blocks in inode allocation */ + int m_ialloc_min_blks;/* min blocks in sparse inode + * allocation */ int m_litino; /* size of inode union area */ int m_inoalign_mask;/* mask sb_inoalignmt if used */ struct xfs_trans_resv m_resv; /* precomputed res values */ diff --git a/libxfs/xfs_ialloc.c b/libxfs/xfs_ialloc.c index 673c0a7..1be6d27 100644 --- a/libxfs/xfs_ialloc.c +++ b/libxfs/xfs_ialloc.c @@ -640,7 +640,7 @@ xfs_ialloc_ag_select( * if we fail allocation due to alignment issues then it is most * likely a real ENOSPC condition. */ - ineed = mp->m_ialloc_blks; + ineed = mp->m_ialloc_min_blks; if (flags && ineed > 1) ineed += xfs_ialloc_cluster_alignment(mp); longest = pag->pagf_longest; diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c index f34c676..fe16e8f 100644 --- a/libxfs/xfs_sb.c +++ b/libxfs/xfs_sb.c @@ -672,6 +672,11 @@ xfs_sb_mount_common( mp->m_ialloc_inos = (int)MAX((__uint16_t)XFS_INODES_PER_CHUNK, sbp->sb_inopblock); mp->m_ialloc_blks = mp->m_ialloc_inos >> sbp->sb_inopblog; + + if (sbp->sb_spino_align) + mp->m_ialloc_min_blks = sbp->sb_spino_align; + else + mp->m_ialloc_min_blks = mp->m_ialloc_blks; } /* -- 1.9.3 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs