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525488520a
linux/fs/xfs/libxfs
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Darrick J. Wong 525488520a xfs: rmap btree requires more reserved free space 
Originally-From: Dave Chinner <dchinner@redhat.com>

The rmap btree is allocated from the AGFL, which means we have to
ensure ENOSPC is reported to userspace before we run out of free
space in each AG. The last allocation in an AG can cause a full
height rmap btree split, and that means we have to reserve at least
this many blocks *in each AG* to be placed on the AGFL at ENOSPC.
Update the various space calculation functions to handle this.

Also, because the macros are now executing conditional code and are
called quite frequently, convert them to functions that initialise
variables in the struct xfs_mount, use the new variables everywhere
and document the calculations better.

[darrick.wong@oracle.com: don't reserve blocks if !rmap]
[dchinner@redhat.com: update m_ag_max_usable after growfs]

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-08-03 11:38:24 +10:00
..
xfs_alloc_btree.c xfs: add function pointers for get/update keys to the btree 2016-08-03 11:03:38 +10:00
xfs_alloc_btree.h
xfs_alloc.c xfs: rmap btree requires more reserved free space 2016-08-03 11:38:24 +10:00
xfs_alloc.h xfs: rmap btree requires more reserved free space 2016-08-03 11:38:24 +10:00
xfs_attr_leaf.c xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_attr_leaf.h xfs: make several functions static 2016-06-01 17:38:15 +10:00
xfs_attr_remote.c xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_attr_remote.h
xfs_attr_sf.h xfs: move struct xfs_attr_shortform to xfs_da_format.h 2016-02-08 15:00:01 +11:00
xfs_attr.c xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_bit.c libxfs: Optimize the loop for xfs_bitmap_empty 2016-01-04 16:10:19 +11:00
xfs_bit.h
xfs_bmap_btree.c xfs: add owner field to extent allocation and freeing 2016-08-03 11:33:42 +10:00
xfs_bmap_btree.h
xfs_bmap.c xfs: rmap btree requires more reserved free space 2016-08-03 11:38:24 +10:00
xfs_bmap.h xfs: add owner field to extent allocation and freeing 2016-08-03 11:33:42 +10:00
xfs_btree.c xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_btree.h xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_cksum.h
xfs_da_btree.c xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_da_btree.h xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_da_format.c xfs: kill xfs_dir2_inou_t 2016-07-20 11:48:31 +10:00
xfs_da_format.h xfs: fix attr shortform structure alignment on cris 2016-08-03 10:59:42 +10:00
xfs_defer.c xfs: add tracepoints for the deferred ops mechanism 2016-08-03 11:13:02 +10:00
xfs_defer.h xfs: change xfs_bmap_{finish,cancel,init,free} -> xfs_defer_* 2016-08-03 11:18:10 +10:00
xfs_dir2_block.c xfs: print name of verifier if it fails 2016-01-04 16:10:19 +11:00
xfs_dir2_data.c xfs: print name of verifier if it fails 2016-01-04 16:10:19 +11:00
xfs_dir2_leaf.c xfs: print name of verifier if it fails 2016-01-04 16:10:19 +11:00
xfs_dir2_node.c xfs: always set rvalp in xfs_dir2_node_trim_free 2016-03-15 11:44:18 +11:00
xfs_dir2_priv.h xfs: move type conversion functions to xfs_dir.h 2014-12-04 09:43:17 +11:00
xfs_dir2_sf.c xfs: kill xfs_dir2_inou_t 2016-07-20 11:48:31 +10:00
xfs_dir2.c xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_dir2.h xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_dquot_buf.c xfs: handle dquot buffer readahead in log recovery correctly 2016-01-12 07:04:01 +11:00
xfs_format.h xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_fs.h xfs: define XFS_IOC_FREEZE even if FIFREEZE is defined 2016-06-01 17:38:15 +10:00
xfs_ialloc_btree.c xfs: add owner field to extent allocation and freeing 2016-08-03 11:33:42 +10:00
xfs_ialloc_btree.h xfs: allocate sparse inode chunks on full chunk allocation failure 2015-05-29 09:18:32 +10:00
xfs_ialloc.c xfs: add owner field to extent allocation and freeing 2016-08-03 11:33:42 +10:00
xfs_ialloc.h xfs: rename flist/free_list to dfops 2016-08-03 11:19:29 +10:00
xfs_inode_buf.c xfs: rework xfs_bmap_free callers to use xfs_defer_ops 2016-08-03 11:15:38 +10:00
xfs_inode_buf.h xfs: mode di_mode to vfs inode 2016-02-09 16:54:58 +11:00
xfs_inode_fork.c Merge branch 'xfs-4.7-inode-reclaim' into for-next 2016-05-20 10:34:00 +10:00
xfs_inode_fork.h xfs: factor out a helper to initialize a local format inode fork 2016-04-06 07:41:43 +10:00
xfs_log_format.h xfs: remove transaction types 2016-04-06 09:20:36 +10:00
xfs_log_recover.h xfs: support a crc verification only log record pass 2016-01-04 15:55:10 +11:00
xfs_log_rlimit.c xfs: move most of xfs_sb.h to xfs_format.h 2014-11-28 14:27:09 +11:00
xfs_quota_defs.h xfs: wire up Q_XGETNEXTQUOTA / get_nextdqblk 2016-02-08 11:27:38 +11:00
xfs_rmap_btree.c xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_rmap_btree.h xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_rmap.c xfs: introduce rmap extent operation stubs 2016-08-03 11:33:43 +10:00
xfs_rmap.h xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_rtbitmap.c xfs: make several functions static 2016-06-01 17:38:15 +10:00
xfs_sb.c xfs: rmap btree requires more reserved free space 2016-08-03 11:38:24 +10:00
xfs_sb.h xfs: remove unused function definitions 2016-02-08 14:58:07 +11:00
xfs_shared.h xfs: define the on-disk rmap btree format 2016-08-03 11:36:07 +10:00
xfs_symlink_remote.c xfs: print name of verifier if it fails 2016-01-04 16:10:19 +11:00
xfs_trans_resv.c xfs: rmap btree transaction reservations 2016-08-03 11:37:10 +10:00
xfs_trans_resv.h xfs: rmap btree transaction reservations 2016-08-03 11:37:10 +10:00
xfs_trans_space.h xfs: clean up XFS_MIN_FREELIST macros 2015-06-22 10:13:30 +10:00
xfs_types.h xfs: introduce rmap btree definitions 2016-08-03 11:30:32 +10:00