Dave Chinner 89b1f55a29 xfs: collapse AG selection for inode allocation ... xfs_dialloc_select_ag() does a lot of repetitive work. It first calls xfs_ialloc_ag_select() to select the AG to start allocation attempts in, which can do up to two entire loops across the perags that inodes can be allocated in. This is simply checking if there is spce available to allocate inodes in an AG, and it returns when it finds the first candidate AG. xfs_dialloc_select_ag() then does it's own iterative walk across all the perags locking the AGIs and trying to allocate inodes from the locked AG. It also doesn't limit the search to mp->m_maxagi, so it will walk all AGs whether they can allocate inodes or not. Hence if we are really low on inodes, we could do almost 3 entire walks across the whole perag range before we find an allocation group we can allocate inodes in or report ENOSPC. Because xfs_ialloc_ag_select() returns on the first candidate AG it finds, we can simply do these checks directly in xfs_dialloc_select_ag() before we lock and try to allocate inodes. This reduces the inode allocation pass down to 2 perag sweeps at most - one for aligned inode cluster allocation and if we can't allocate full, aligned inode clusters anywhere we'll do another pass trying to do sparse inode cluster allocation. This also removes a big chunk of duplicate code. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org>		2021-06-02 10:48:24 +10:00
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xfs_ag_resv.c	xfs: push perags through the ag reservation callouts	2021-06-02 10:48:24 +10:00
xfs_ag_resv.h	xfs: move perag structure and setup to libxfs/xfs_ag.[ch]	2021-06-02 10:48:24 +10:00
xfs_ag.c	xfs: convert rmap btree cursor to using a perag	2021-06-02 10:48:24 +10:00
xfs_ag.h	xfs: pass perags around in fsmap data dev functions	2021-06-02 10:48:24 +10:00
xfs_alloc_btree.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_alloc_btree.h	xfs: convert allocbt cursors to use perags	2021-06-02 10:48:24 +10:00
xfs_alloc.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_alloc.h	xfs: pass perags through to the busy extent code	2021-06-02 10:48:24 +10:00
xfs_attr_leaf.c	xfs: move xfs_perag_get/put to xfs_ag.[ch]	2021-06-02 10:48:24 +10:00
xfs_attr_leaf.h	xfs: Add xfs_has_attr and subroutines	2020-07-28 20:24:14 -07:00
xfs_attr_remote.c	xfs: remove the redundant crc feature check in xfs_attr3_rmt_verify	2020-09-25 11:34:07 -07:00
xfs_attr_remote.h	xfs: Refactor xfs_attr_rmtval_remove	2020-07-28 20:28:11 -07:00
xfs_attr_sf.h	xfs: Convert xfs_attr_sf macros to inline functions	2020-09-15 20:52:42 -07:00
xfs_attr.c	xfs: remove XFS_IFINLINE	2021-04-15 09:35:51 -07:00
xfs_attr.h	xfs: rename and simplify xfs_bmap_one_block	2021-04-15 09:35:50 -07:00
xfs_bit.c	xfs: fix missing header includes	2019-11-07 13:00:53 -08:00
xfs_bit.h	xfs: Use the correct style for SPDX License Identifier	2020-05-13 15:32:45 -07:00
xfs_bmap_btree.c	xfs: move the di_flags field to struct xfs_inode	2021-04-07 14:37:05 -07:00
xfs_bmap_btree.h	xfs: Use the correct style for SPDX License Identifier	2020-05-13 15:32:45 -07:00
xfs_bmap.c	xfs: move xfs_perag_get/put to xfs_ag.[ch]	2021-06-02 10:48:24 +10:00
xfs_bmap.h	xfs: rename and simplify xfs_bmap_one_block	2021-04-15 09:35:50 -07:00
xfs_btree_staging.c	xfs: remove XFS_IFBROOT	2021-04-15 09:35:51 -07:00
xfs_btree_staging.h	xfs: xfs_btree_staging.h: delete duplicated words	2020-07-28 20:24:14 -07:00
xfs_btree.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_btree.h	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_cksum.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xfs_da_btree.c	xfs: move the di_nblocks field to struct xfs_inode	2021-04-07 14:37:03 -07:00
xfs_da_btree.h	xfs: Refactor xfs_da_state_alloc() helper	2020-07-28 20:24:14 -07:00
xfs_da_format.h	xfs: code cleanup in xfs_attr_leaf_entsize_{remote,local}	2020-09-25 11:34:08 -07:00
xfs_defer.c	xfs: only relog deferred intent items if free space in the log gets low	2020-10-07 08:40:29 -07:00
xfs_defer.h	xfs: fix an incore inode UAF in xfs_bui_recover	2020-10-07 08:40:28 -07:00
xfs_dir2_block.c	xfs: remove XFS_IFINLINE	2021-04-15 09:35:51 -07:00
xfs_dir2_data.c	xfs: No need for inode number error injection in __xfs_dir3_data_check	2021-03-25 16:47:51 -07:00
xfs_dir2_leaf.c	xfs: move the di_size field to struct xfs_inode	2021-04-07 14:37:03 -07:00
xfs_dir2_node.c	xfs: move the di_size field to struct xfs_inode	2021-04-07 14:37:03 -07:00
xfs_dir2_priv.h	xfs: reduce debug overhead of dir leaf/node checks	2021-03-25 16:47:51 -07:00
xfs_dir2_sf.c	xfs: remove XFS_IFEXTENTS	2021-04-15 09:35:51 -07:00
xfs_dir2.c	xfs: move the di_size field to struct xfs_inode	2021-04-07 14:37:03 -07:00
xfs_dir2.h	xfs: fix an ABBA deadlock in xfs_rename	2021-01-22 16:54:43 -08:00
xfs_dquot_buf.c	xfs: widen ondisk quota expiration timestamps to handle y2038+	2020-09-15 20:52:41 -07:00
xfs_errortag.h	xfs: add error injection for per-AG resv failure	2021-03-25 16:47:53 -07:00
xfs_format.h	xfs: move the di_crtime field to struct xfs_inode	2021-04-07 14:37:05 -07:00
xfs_fs.h	New code for 5.13:	2021-04-29 10:43:51 -07:00
xfs_health.h	xfs: Use the correct style for SPDX License Identifier	2020-05-13 15:32:45 -07:00
xfs_ialloc_btree.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_ialloc_btree.h	xfs: use perag for ialloc btree cursors	2021-06-02 10:48:24 +10:00
xfs_ialloc.c	xfs: collapse AG selection for inode allocation	2021-06-02 10:48:24 +10:00
xfs_ialloc.h	xfs: spilt xfs_dialloc() into 2 functions	2020-12-12 10:48:25 -08:00
xfs_iext_tree.c	xfs: prevent metadata files from being inactivated	2021-03-25 16:47:50 -07:00
xfs_inode_buf.c	xfs: move the di_crtime field to struct xfs_inode	2021-04-07 14:37:05 -07:00
xfs_inode_buf.h	xfs: move the di_crtime field to struct xfs_inode	2021-04-07 14:37:05 -07:00
xfs_inode_fork.c	xfs: remove XFS_IFEXTENTS	2021-04-15 09:35:51 -07:00
xfs_inode_fork.h	xfs: remove XFS_IFEXTENTS	2021-04-15 09:35:51 -07:00
xfs_log_format.h	xfs: rename struct xfs_legacy_ictimestamp	2021-04-22 18:29:25 -07:00
xfs_log_recover.h	xfs: remove xlog_recover_iodone	2020-09-15 20:52:39 -07:00
xfs_log_rlimit.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_quota_defs.h	xfs: widen ondisk quota expiration timestamps to handle y2038+	2020-09-15 20:52:41 -07:00
xfs_refcount_btree.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_refcount_btree.h	xfs: convert refcount btree cursor to use perags	2021-06-02 10:48:24 +10:00
xfs_refcount.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_refcount.h	xfs: convert refcount btree cursor to use perags	2021-06-02 10:48:24 +10:00
xfs_rmap_btree.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_rmap_btree.h	xfs: convert rmap btree cursor to using a perag	2021-06-02 10:48:24 +10:00
xfs_rmap.c	xfs: remove agno from btree cursor	2021-06-02 10:48:24 +10:00
xfs_rmap.h	xfs: convert rmap btree cursor to using a perag	2021-06-02 10:48:24 +10:00
xfs_rtbitmap.c	xfs: move the di_flags field to struct xfs_inode	2021-04-07 14:37:05 -07:00
xfs_sb.c	xfs: convert secondary superblock walk to use perags	2021-06-02 10:48:24 +10:00
xfs_sb.h	xfs: move xfs_perag_get/put to xfs_ag.[ch]	2021-06-02 10:48:24 +10:00
xfs_shared.h	xfs: precalculate default inode attribute offset	2021-04-07 14:37:07 -07:00
xfs_symlink_remote.c	xfs: move the fork format fields into struct xfs_ifork	2020-05-19 09:40:58 -07:00
xfs_trans_inode.c	xfs: move the di_crtime field to struct xfs_inode	2021-04-07 14:37:05 -07:00
xfs_trans_resv.c	xfs: add a new xfs_sb_version_has_v3inode helper	2020-03-19 08:47:34 -07:00
xfs_trans_resv.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_trans_space.h	xfs: fix off-by-one in inode alloc block reservation calculation	2020-08-26 14:13:21 -07:00
xfs_types.c	xfs: convert raw ag walks to use for_each_perag	2021-06-02 10:48:24 +10:00
xfs_types.h	xfs: refactor file range validation	2020-12-09 09:49:38 -08:00