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Darrick J. Wong d8cb5e4237 xfs: fix fdblocks accounting w/ RMAPBT per-AG reservation 
In __xfs_ag_resv_init we incorrectly calculate the amount by which to
decrease fdblocks when reserving blocks for the rmapbt.  Because rmapbt
allocations do not decrease fdblocks, we must decrease fdblocks by the
entire size of the requested reservation in order to achieve our goal of
always having enough free blocks to satisfy an rmapbt expansion.

This is in contrast to the refcountbt/finobt, which /do/ subtract from
fdblocks whenever they allocate a block.  For this allocation type we
preserve the existing behavior where we decrease fdblocks only by the
requested reservation minus the size of the existing tree.

This fixes the problem where the available block counts reported by
statfs change across a remount if there had been an rmapbt size change
since mount time.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
 		2018-06-24 12:00:12 -07:00
..
libxfs xfs: fix fdblocks accounting w/ RMAPBT per-AG reservation 2018-06-24 12:00:12 -07:00
scrub xfs: move various type verifiers to common file 2018-06-08 10:07:51 -07:00
Kconfig xfs: implement the metadata repair ioctl flag 2018-05-15 18:12:50 -07:00
Makefile xfs: move various type verifiers to common file 2018-06-08 10:07:51 -07:00
kmem.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
kmem.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
mrlock.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_acl.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_acl.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_aops.c Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_aops.h Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_attr.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr_inactive.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr_list.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bmap_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bmap_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bmap_util.c xfs: ensure post-EOF zeroing happens after zeroing part of a file 2018-06-24 11:56:36 -07:00
xfs_bmap_util.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_buf.c xfs: xfs_reflink_convert_cow() memory allocation deadlock 2018-06-08 10:07:51 -07:00
xfs_buf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_buf_item.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_buf_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dir2_readdir.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_discard.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_discard.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_dquot.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dquot.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dquot_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dquot_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_error.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_error.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_export.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_export.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_extent_busy.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_extent_busy.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_extfree_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_extfree_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_file.c Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_filestream.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_filestream.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_fsmap.c xfs: fix uninitialized field in rtbitmap fsmap backend 2018-06-24 11:56:36 -07:00
xfs_fsmap.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_fsops.c xfs: don't trip over negative free space in xfs_reserve_blocks 2018-06-24 11:56:36 -07:00
xfs_fsops.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_globals.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_icache.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_icache.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_icreate_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_icreate_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode.c xfs: xfs_iflush_abort() can be called twice on cluster writeback failure 2018-06-21 23:31:38 -07:00
xfs_inode.h Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_inode_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ioctl.c Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_ioctl.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ioctl32.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ioctl32.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_iomap.c xfs: recheck reflink state after grabbing ILOCK_SHARED for a write 2018-06-24 11:56:36 -07:00
xfs_iomap.h xfs: replace do_mod with native operations 2018-06-08 10:07:52 -07:00
xfs_iops.c vfs/y2038: inode timestamps conversion to timespec64 2018-06-15 07:31:07 +09:00
xfs_iops.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_itable.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_itable.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_linux.h xfs: replace do_mod with native operations 2018-06-08 10:07:52 -07:00
xfs_log.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_log.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_log_cil.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_log_priv.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_log_recover.c xfs: replace do_mod with native operations 2018-06-08 10:07:52 -07:00
xfs_message.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_message.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_mount.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_mount.h xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_mru_cache.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_mru_cache.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ondisk.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_pnfs.c xfs: prepare xfs_break_layouts() for another layout type 2018-05-22 07:19:08 -07:00
xfs_pnfs.h xfs: prepare xfs_break_layouts() for another layout type 2018-05-22 07:19:08 -07:00
xfs_qm.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_qm.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_qm_bhv.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_qm_syscalls.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_quota.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_quotaops.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_refcount_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_refcount_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_reflink.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_reflink.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rmap_item.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rmap_item.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rtalloc.c xfs: replace do_mod with native operations 2018-06-08 10:07:52 -07:00
xfs_rtalloc.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_stats.c Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_stats.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_super.c Changes since last update: 2018-06-12 15:49:00 -07:00
xfs_super.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_symlink.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_symlink.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_sysctl.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_sysctl.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_sysfs.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_sysfs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trace.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trace.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans.c xfs: allow empty transactions while frozen 2018-06-24 11:56:35 -07:00
xfs_trans.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_ail.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_bmap.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_buf.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_dquot.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_extfree.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_inode.c vfs/y2038: inode timestamps conversion to timespec64 2018-06-15 07:31:07 +09:00
xfs_trans_priv.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_refcount.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_rmap.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_xattr.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00