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From: Brian Foster <bfoster@redhat.com>
To: xfs@oss.sgi.com
Subject: [PATCH v2 03/17] xfs: define sparse inode chunks v5 sb feature bit and helper function
Date: Mon,  3 Nov 2014 11:12:12 -0500	[thread overview]
Message-ID: <1415031146-9107-4-git-send-email-bfoster@redhat.com> (raw)
In-Reply-To: <1415031146-9107-1-git-send-email-bfoster@redhat.com>

The sparse inode chunks feature uses the helper function to enable the
allocation of sparse inode chunks. The incompatible feature bit is set
on disk at mkfs time.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
 fs/xfs/libxfs/xfs_sb.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h
index 4e5aaa8..eeb4058 100644
--- a/fs/xfs/libxfs/xfs_sb.h
+++ b/fs/xfs/libxfs/xfs_sb.h
@@ -509,6 +509,7 @@ xfs_sb_has_ro_compat_feature(
 }
 
 #define XFS_SB_FEAT_INCOMPAT_FTYPE	(1 << 0)	/* filetype in dirent */
+#define XFS_SB_FEAT_INCOMPAT_SPINODES	(1 << 1)	/* sparse inode chunks */
 #define XFS_SB_FEAT_INCOMPAT_ALL \
 		(XFS_SB_FEAT_INCOMPAT_FTYPE)
 
@@ -558,6 +559,12 @@ static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp)
 		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT);
 }
 
+static inline bool xfs_sb_version_hassparseinodes(struct xfs_sb *sbp)
+{
+	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
+		xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_SPINODES);
+}
+
 /*
  * end of superblock version macros
  */
-- 
1.8.3.1

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  parent reply	other threads:[~2014-11-03 16:35 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-03 16:12 [PATCH v2 00/17] xfs: sparse inode chunks Brian Foster
2014-11-03 16:12 ` [PATCH v2 01/17] xfs: add sparse inode chunk alignment superblock field Brian Foster
2014-11-03 16:12 ` [PATCH v2 02/17] xfs: use sparse chunk alignment for min. inode allocation requirement Brian Foster
2014-11-03 16:12 ` Brian Foster [this message]
2014-11-03 16:12 ` [PATCH v2 04/17] xfs: introduce inode record hole mask for sparse inode chunks Brian Foster
2014-11-03 16:12 ` [PATCH v2 05/17] xfs: create macros/helpers for dealing with " Brian Foster
2014-11-03 22:12   ` Fanael Linithien
2014-11-03 22:34     ` Brian Foster
2014-11-03 23:56       ` Fanael Linithien
2014-11-04  1:33         ` Dave Chinner
2014-11-04 12:15           ` Brian Foster
2014-11-04 12:14         ` Brian Foster
2014-11-03 16:12 ` [PATCH v2 06/17] xfs: pass inode count through ordered icreate log item Brian Foster
2014-11-03 16:12 ` [PATCH v2 07/17] xfs: handle sparse inode chunks in icreate log recovery Brian Foster
2014-11-03 16:12 ` [PATCH v2 08/17] xfs: create helper to manage record overlap for sparse inode chunks Brian Foster
2014-11-03 16:12 ` [PATCH v2 09/17] xfs: allocate sparse inode chunks on full chunk allocation failure Brian Foster
2014-11-03 16:12 ` [PATCH v2 10/17] xfs: helpers to convert holemask to/from generic bitmap Brian Foster
2014-11-03 16:12 ` [PATCH v2 11/17] xfs: filter out sparse regions from individual inode allocation Brian Foster
2014-11-03 16:12 ` [PATCH v2 12/17] xfs: update free inode record logic to support sparse inode records Brian Foster
2014-11-03 16:12 ` [PATCH v2 13/17] xfs: only free allocated regions of inode chunks Brian Foster
2014-11-03 16:12 ` [PATCH v2 14/17] xfs: skip unallocated regions of inode chunks in xfs_ifree_cluster() Brian Foster
2014-11-03 16:12 ` [PATCH v2 15/17] xfs: use actual inode count for sparse records in bulkstat/inumbers Brian Foster
2014-11-03 16:12 ` [PATCH v2 16/17] xfs: add fs geometry bit for sparse inode chunks Brian Foster
2014-11-03 16:12 ` [PATCH v2 17/17] xfs: enable sparse inode chunks for v5 superblocks Brian Foster

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