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cca9f93a52
linux/fs/xfs
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Dave Chinner cca9f93a52 xfs: don't do IO when creating an new inode 
When we are allocating a new inode, we read the inode cluster off
disk to increment the generation number. We are already using a
random generation number for newly allocated inodes, so if we are not
using the ikeep mode, we can just generate a new generation number
when we initialise the newly allocated inode.

This avoids the need for reading the inode buffer during inode
creation. This will speed up allocation of inodes in cold, partially
allocated clusters as they will no longer need to be read from disk
during allocation. It will also reduce the CPU overhead of inode
allocation by not having the process the buffer read, even on cache
hits.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-06-27 13:28:20 -05:00
..
Kconfig xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
kmem.c xfs: switch to proper __bitwise type for KM_... flags 2012-05-29 23:28:32 -04:00
kmem.h xfs: switch to proper __bitwise type for KM_... flags 2012-05-29 23:28:32 -04:00
Makefile xfs: split remote attribute code out 2013-04-27 12:49:32 -05:00
mrlock.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
time.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_acl.c xfs: increase number of ACL entries for V5 superblocks 2013-06-05 11:26:53 -05:00
xfs_acl.h xfs: increase number of ACL entries for V5 superblocks 2013-06-05 11:26:53 -05:00
xfs_ag.h xfs: add CRC checks to the AGI 2013-04-21 14:57:43 -05:00
xfs_alloc_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_alloc_btree.h xfs: add support for large btree blocks 2013-04-21 14:53:46 -05:00
xfs_alloc.c xfs: Avoid pathological backwards allocation 2013-05-20 13:09:11 -05:00
xfs_alloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_aops.c xfs: fix sub-page blocksize data integrity writes 2013-05-20 14:14:25 -05:00
xfs_aops.h Prefix IO_XX flags with XFS_IO_XX to avoid namespace colision. 2012-07-22 11:00:55 -05:00
xfs_attr_leaf.c xfs: fix remote attribute invalidation for a leaf 2013-06-04 17:36:30 -05:00
xfs_attr_leaf.h xfs: fix implicit padding in directory and attr CRC formats 2013-06-13 10:30:03 -05:00
xfs_attr_remote.c xfs: rework remote attr CRCs 2013-05-23 18:04:06 -05:00
xfs_attr_remote.h xfs: rework remote attr CRCs 2013-05-23 18:04:06 -05:00
xfs_attr_sf.h
xfs_attr.c xfs: split remote attribute code out 2013-04-27 12:49:32 -05:00
xfs_attr.h xfs: split remote attribute code out 2013-04-27 12:49:32 -05:00
xfs_bit.c
xfs_bit.h
xfs_bmap_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_bmap_btree.h xfs: check on-disk (not incore) btree root size in dfrag.c 2013-06-20 13:26:09 -05:00
xfs_bmap.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_bmap.h xfs: move allocation stack switch up to xfs_bmapi_allocate 2012-10-18 17:42:48 -05:00
xfs_btree.c xfs: ensure btree root split sets blkno correctly 2013-06-13 14:18:02 -05:00
xfs_btree.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_buf_item.c xfs: fix split buffer vector log recovery support 2013-05-30 12:48:33 -05:00
xfs_buf_item.h xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_buf.c xfs: rework remote attr CRCs 2013-05-23 18:04:06 -05:00
xfs_buf.h xfs: use b_maps[] for discontiguous buffers 2013-01-16 16:07:11 -06:00
xfs_cksum.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_da_btree.c xfs: xfs_da3_node_read_verify() doesn't handle XFS_ATTR3_LEAF_MAGIC 2013-05-20 16:32:30 -05:00
xfs_da_btree.h xfs: add buffer types to directory and attribute buffers 2013-04-27 13:01:06 -05:00
xfs_dfrag.c xfs: check on-disk (not incore) btree root size in dfrag.c 2013-06-20 13:26:09 -05:00
xfs_dfrag.h
xfs_dinode.h xfs: add version 3 inode format with CRCs 2013-04-21 15:03:33 -05:00
xfs_dir2_block.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_dir2_data.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_dir2_format.h xfs: fix implicit padding in directory and attr CRC formats 2013-06-13 10:30:03 -05:00
xfs_dir2_leaf.c xfs: plug directory buffer readahead 2013-06-27 13:27:24 -05:00
xfs_dir2_node.c xfs: fix dir3 freespace block corruption 2013-05-30 14:32:47 -05:00
xfs_dir2_priv.h xfs: add buffer types to directory and attribute buffers 2013-04-27 13:01:06 -05:00
xfs_dir2_sf.c xfs: shortform directory offsets change for dir3 format 2013-04-27 12:24:32 -05:00
xfs_dir2.c xfs: remove struct xfs_dabuf and infrastructure 2012-07-01 14:50:07 -05:00
xfs_dir2.h xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_discard.c xfs: check for possible overflow in xfs_ioc_trim 2012-08-23 14:48:44 -05:00
xfs_discard.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot_item.c xfs: clean up xfs_bit.h includes 2012-05-14 16:21:00 -05:00
xfs_dquot_item.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot.c xfs: rework dquot CRCs 2013-06-04 17:35:51 -05:00
xfs_dquot.h xfs: xfs_dquot prealloc throttling watermarks and low free space 2013-03-22 16:06:30 -05:00
xfs_error.c xfs: increase hexdump output in xfs_corruption_error 2013-04-21 14:48:41 -05:00
xfs_error.h
xfs_export.c fs: encode_fh: return FILEID_INVALID if invalid fid_type 2013-02-26 02:46:10 -05:00
xfs_export.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_extent_busy.c xfs: make xfs_extent_busy_trim not static 2012-05-14 16:21:04 -05:00
xfs_extent_busy.h xfs: make xfs_extent_busy_trim not static 2012-05-14 16:21:04 -05:00
xfs_extfree_item.c xfs: Don't reference the EFI after it is freed 2013-05-20 14:29:34 -05:00
xfs_extfree_item.h xfs: don't free EFIs before the EFDs are committed 2013-04-05 13:25:35 -05:00
xfs_file.c aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
xfs_filestream.c xfs: rename allocation range fields in struct xfs_bmalloca 2011-10-11 21:15:06 -05:00
xfs_filestream.h
xfs_fs.h xfs: add fsgeom flag for v5 superblock support. 2013-05-30 12:57:25 -05:00
xfs_fsops.c xfs: Remove redundant error variable from xfs_growfs_data_private() 2013-06-17 17:43:04 -05:00
xfs_fsops.h
xfs_globals.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_ialloc_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_ialloc_btree.h xfs: add support for large btree blocks 2013-04-21 14:53:46 -05:00
xfs_ialloc.c xfs: Remove the left function variable from xfs_ialloc_get_rec() 2013-06-26 12:22:41 -05:00
xfs_ialloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_icache.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_icache.h xfs: Remove dead function prototype xfs_sync_inode_grab() 2013-06-26 12:29:27 -05:00
xfs_inode_item.c xfs: add version 3 inode format with CRCs 2013-04-21 15:03:33 -05:00
xfs_inode_item.h xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_inode.c xfs: don't do IO when creating an new inode 2013-06-27 13:28:20 -05:00
xfs_inode.h xfs: add version 3 inode format with CRCs 2013-04-21 15:03:33 -05:00
xfs_inum.h xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_ioctl32.c xfs: fallback to vmalloc for large buffers in xfs_compat_attrlist_by_handle 2013-05-07 19:00:10 -05:00
xfs_ioctl32.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ioctl.c xfs: fallback to vmalloc for large buffers in xfs_attrlist_by_handle 2013-05-07 18:56:38 -05:00
xfs_ioctl.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_iomap.c xfs: don't use speculative prealloc for small files 2013-06-27 13:27:37 -05:00
xfs_iomap.h
xfs_iops.c xfs: return FIEMAP_EXTENT_UNKNOWN for delayed allocation extent 2013-06-19 14:18:32 -05:00
xfs_iops.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_itable.c xfs: add pluging for bulkstat readahead 2013-06-27 13:26:23 -05:00
xfs_itable.h
xfs_linux.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_log_cil.c xfs: fix missing KM_NOFS tags to keep lockdep happy 2013-05-20 16:18:05 -05:00
xfs_log_priv.h xfs: Remove the obsolete XLOG_CIL_HARD_SPACE_LIMIT() macros 2013-04-16 13:18:33 -05:00
xfs_log_recover.c xfs: don't shutdown log recovery on validation errors 2013-06-14 15:29:31 -05:00
xfs_log_recover.h
xfs_log.c xfs: rename random32() to prandom_u32() 2013-03-07 12:33:57 -06:00
xfs_log.h xfs: xfs_quiesce_attr() should quiesce the log like unmount 2012-10-17 13:39:14 -05:00
xfs_message.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_message.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_mount.c xfs: Remove XFS_MOUNT_RETERR 2013-06-19 14:54:17 -05:00
xfs_mount.h xfs: Remove XFS_MOUNT_RETERR 2013-06-19 14:54:17 -05:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_qm_bhv.c xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_qm_syscalls.c xfs: avoid nesting transactions in xfs_qm_scall_setqlim() 2013-05-21 13:57:05 -05:00
xfs_qm.c xfs: rework dquot CRCs 2013-06-04 17:35:51 -05:00
xfs_qm.h xfs: add CRC checks for quota blocks 2013-04-21 14:58:22 -05:00
xfs_quota_priv.h xfs: use per-filesystem radix trees for dquot lookup 2012-03-14 11:09:06 -05:00
xfs_quota.h xfs: rework dquot CRCs 2013-06-04 17:35:51 -05:00
xfs_quotaops.c userns: Convert qutoactl 2012-09-18 01:01:39 -07:00
xfs_rename.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_rtalloc.c xfs: uncached buffer reads need to return an error 2012-11-15 21:34:05 -06:00
xfs_rtalloc.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_sb.h xfs: implement extended feature masks 2013-04-27 13:05:18 -05:00
xfs_stats.c xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_stats.h xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_super.c xfs: Remove XFS_MOUNT_RETERR 2013-06-19 14:54:17 -05:00
xfs_super.h xfs: xfs_sync_data is redundant. 2012-10-17 12:01:25 -05:00
xfs_symlink.c xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_symlink.h xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_sysctl.c xfs: Convert use of typedef ctl_table to struct ctl_table 2013-06-17 17:42:25 -05:00
xfs_sysctl.h xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_trace.c xfs: add CRCs to dir2/da node blocks 2013-04-27 12:33:38 -05:00
xfs_trace.h xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_trans_ail.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_buf.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_trans_dquot.c xfs: pass xfs_dquot to xfs_qm_adjust_dqlimits() instead of xfs_disk_dquot_t 2013-03-22 16:05:52 -05:00
xfs_trans_extfree.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_trans_inode.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_priv.h xfs: re-enable xfsaild idle mode and fix associated races 2012-07-29 16:27:57 -05:00
xfs_trans_space.h
xfs_trans.c xfs: refactor space log reservation for XFS_TRANS_ATTR_SET 2013-02-01 14:56:31 -06:00
xfs_trans.h xfs: Remove two dead transaction log reservaion macros 2013-06-19 14:26:16 -05:00
xfs_types.h xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_utils.c xfs: remove the alloc_done argument to xfs_dialloc 2012-07-29 16:00:31 -05:00
xfs_utils.h xfs: propagate umode_t 2012-01-03 22:55:00 -05:00
xfs_vnode.h xfs: remove remaining scraps of struct xfs_iomap 2012-03-15 13:40:16 -05:00
xfs_vnodeops.c xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_vnodeops.h xfs: byte range granularity for XFS_IOC_ZERO_RANGE 2012-11-29 14:21:46 -06:00
xfs_xattr.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00