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authorEric Sandeen <sandeen@redhat.com>2014-07-24 14:51:54 +0400
committerDave Chinner <david@fromorbit.com>2014-07-24 14:51:54 +0400
commit9de67c3ba9ea961ba420573d56479d09d33a7587 (patch)
treed173aa82969c02f0b8d275e9618d170652e0afa1 /fs/xfs/xfs_super.h
parenteb866bbf095ec68552c0583199208858618498e3 (diff)
downloadlinux-9de67c3ba9ea961ba420573d56479d09d33a7587.tar.xz
xfs: allow inode allocations in post-growfs disk space
Today, if we perform an xfs_growfs which adds allocation groups, mp->m_maxagi is not properly updated when the growfs is complete. Therefore inodes will continue to be allocated only in the AGs which existed prior to the growfs, and the new space won't be utilized. This is because of this path in xfs_growfs_data_private(): xfs_growfs_data_private xfs_initialize_perag(mp, nagcount, &nagimax); if (mp->m_flags & XFS_MOUNT_32BITINODES) index = xfs_set_inode32(mp); else index = xfs_set_inode64(mp); if (maxagi) *maxagi = index; where xfs_set_inode* iterates over the (old) agcount in mp->m_sb.sb_agblocks, which has not yet been updated in the growfs path. So "index" will be returned based on the old agcount, not the new one, and new AGs are not available for inode allocation. Fix this by explicitly passing the proper AG count (which xfs_initialize_perag() already has) down another level, so that xfs_set_inode* can make the proper decision about acceptable AGs for inode allocation in the potentially newly-added AGs. This has been broken since 3.7, when these two xfs_set_inode* functions were added in commit 2d2194f. Prior to that, we looped over "agcount" not sb_agblocks in these calculations. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_super.h')
-rw-r--r--fs/xfs/xfs_super.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_super.h b/fs/xfs/xfs_super.h
index bbe3d15a7904..b4cfe21d8fb0 100644
--- a/fs/xfs/xfs_super.h
+++ b/fs/xfs/xfs_super.h
@@ -76,8 +76,8 @@ extern __uint64_t xfs_max_file_offset(unsigned int);
extern void xfs_flush_inodes(struct xfs_mount *mp);
extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
-extern xfs_agnumber_t xfs_set_inode32(struct xfs_mount *);
-extern xfs_agnumber_t xfs_set_inode64(struct xfs_mount *);
+extern xfs_agnumber_t xfs_set_inode32(struct xfs_mount *, xfs_agnumber_t agcount);
+extern xfs_agnumber_t xfs_set_inode64(struct xfs_mount *, xfs_agnumber_t agcount);
extern const struct export_operations xfs_export_operations;
extern const struct xattr_handler *xfs_xattr_handlers[];