Dave Chinner 11ef38afe9 xfs: make xfs btree stats less huge ... Embedding a switch statement in every btree stats inc/add adds a lot of code overhead to the core btree infrastructure paths. Stats are supposed to be small and lightweight, but the btree stats have become big and bloated as we've added more btrees. It needs fixing because the reflink code will just add more overhead again. Convert the v2 btree stats to arrays instead of independent variables, and instead use the type to index the specific btree array via an enum. This allows us to use array based indexing to update the stats, rather than having to derefence variables specific to the btree type. If we then wrap the xfsstats structure in a union and place uint32_t array beside it, and calculate the correct btree stats array base array index when creating a btree cursor, we can easily access entries in the stats structure without having to switch names based on the btree type. We then replace with the switch statement with a simple set of stats wrapper macros, resulting in a significant simplification of the btree stats code, and: text data bss dec hex filename 48905 144 8 49057 bfa1 fs/xfs/libxfs/xfs_btree.o.old 36793 144 8 36945 9051 fs/xfs/libxfs/xfs_btree.o it reduces the core btree infrastructure code size by close to 25%! Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>		2016-12-05 14:38:58 +11:00
..
9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
affs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
afs	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
autofs4	autofs: refactor ioctl fn vector in iookup_dev_ioctl()	2016-10-11 15:06:31 -07:00
befs	befs fixes for 4.9-rc1	2016-10-15 12:09:13 -07:00
bfs	Merge remote-tracking branch 'ovl/rename2' into for-linus	2016-10-10 23:02:51 -04:00
btrfs	Merge branch 'for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2016-10-14 17:44:56 -07:00
cachefiles	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
cifs	CIFS: Retrieve uid and gid from special sid if enabled	2016-10-14 14:22:16 -05:00
coda	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
configfs	Merge remote-tracking branch 'ovl/rename2' into for-linus	2016-10-10 23:02:51 -04:00
cramfs
crypto	Lots of bug fixes and cleanups.	2016-10-07 15:15:33 -07:00
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
devpts	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
dlm	dlm: free workqueues after the connections	2016-10-10 09:54:00 -05:00
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
efivarfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
efs
exofs	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
exportfs	exportfs: be careful to only return expected errors.	2016-10-06 09:07:44 -04:00
ext2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ext4	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
f2fs	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
fat	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
freevxfs
fscache
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hfsplus	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hostfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hugetlbfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
isofs	get rid of 'parent' argument of ->d_compare()	2016-07-31 16:37:25 -04:00
jbd2	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
jffs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
jfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
kernfs	Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-10-14 12:18:50 -07:00
lockd	treewide: remove redundant #include <linux/kconfig.h>	2016-10-11 15:06:33 -07:00
logfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
minix	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ncpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
nfs	NFS client updates for Linux 4.9	2016-10-13 21:28:20 -07:00
nfs_common
nfsd	Some RDMA work and some good bugfixes, and two new features that could	2016-10-13 21:04:42 -07:00
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
nls
notify	fsnotify: clean up spinlock assertions	2016-10-07 18:46:26 -07:00
ntfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ocfs2	ocfs2: fix memory leak in dlm_migrate_request_handler()	2016-10-11 15:06:30 -07:00
omfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
openpromfs	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
orangefs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
overlayfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-14 18:19:05 -07:00
proc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
pstore	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
qnx4
qnx6
quota	quota: fill in Q_XGETQSTAT inode information for inactive quotas	2016-08-15 17:43:31 +02:00
ramfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
romfs
squashfs	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
sysfs	Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-10-14 12:18:50 -07:00
sysv	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
tracefs	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
ubifs	This pull request contains:	2016-10-11 10:49:44 -07:00
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ufs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
xfs	xfs: make xfs btree stats less huge	2016-12-05 14:38:58 +11:00
aio.c	fs/aio.c: eliminate redundant loads in put_aio_ring_file	2016-09-27 21:45:46 -04:00
anon_inodes.c
attr.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
bad_inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
binfmt_aout.c
binfmt_elf_fdpic.c	elf_fdpic_transfer_args_to_stack(): make it generic	2016-07-25 16:51:49 +10:00
binfmt_elf.c	x86/coredump: Use pr_reg size, rather that TIF_IA32 flag	2016-09-14 21:28:10 +02:00
binfmt_em86.c	fs/binfmt_em86.c: fix incompatible pointer type	2016-08-02 19:35:15 -04:00
binfmt_flat.c	binfmt_flat: allow compressed flat binary format to work on MMU systems	2016-07-28 13:29:12 +10:00
binfmt_misc.c	fs: Replace current_fs_time() with current_time()	2016-09-27 21:06:22 -04:00
binfmt_script.c
block_dev.c	block: implement (some of) fallocate for block devices	2016-10-11 15:06:30 -07:00
buffer.c	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
char_dev.c	dax: define a unified inode/address_space for device-dax mappings	2016-08-23 22:58:51 -07:00
compat_binfmt_elf.c
compat_ioctl.c	fs: compat_ioctl: add pretimeout functions for watchdogs	2016-09-24 09:27:18 +02:00
compat.c	compat: remove compat_printk()	2016-09-27 21:20:53 -04:00
coredump.c
dax.c	thp: reduce usage of huge zero page's atomic counter	2016-10-07 18:46:28 -07:00
dcache.c	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-08-07 10:01:14 -04:00
dcookies.c
direct-io.c	consistent treatment of EFAULT on O_DIRECT read/write	2016-10-03 20:38:55 -04:00
drop_caches.c
eventfd.c
eventpoll.c
exec.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu	2016-08-04 18:04:44 -04:00
fcntl.c
fhandle.c
file_table.c
file.c	fs/file: more unsigned file descriptors	2016-09-27 18:47:38 -04:00
filesystems.c
fs_pin.c
fs_struct.c
fs-writeback.c	mm, writeback: flush plugged IO in wakeup_flusher_threads()	2016-08-09 19:58:06 -06:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
internal.h	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 13:04:49 -07:00
ioctl.c	vfs: cap dedupe request structure size at PAGE_SIZE	2016-09-15 13:29:52 -07:00
iomap.c	fs: Do to trim high file position bits in iomap_page_mkwrite_actor	2016-10-24 14:20:25 +11:00
Kconfig	mm/hugetlb: introduce ARCH_HAS_GIGANTIC_PAGE	2016-10-07 18:46:29 -07:00
Kconfig.binfmt	ARM: 8594/1: enable binfmt_flat on systems with an MMU	2016-08-12 16:47:05 +01:00
libfs.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
locks.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
Makefile
mbcache.c	mbcache: fix to detect failure of register_shrinker	2016-08-31 11:44:36 -04:00
mount.h	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
mpage.c	block/mm: make bdev_ops->rw_page() take a bool for read/write	2016-08-07 14:41:02 -06:00
namei.c	Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-10-14 17:23:33 -07:00
namespace.c	This adds a new gcc plugin named "latent_entropy". It is designed to	2016-10-15 10:03:15 -07:00
no-block.c
nsfs.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
open.c	xfs: reflink update for 4.9-rc1	2016-10-13 20:28:22 -07:00
pipe.c	pipe: cap initial pipe capacity according to pipe-max-size limit	2016-10-11 15:06:32 -07:00
pnode.c	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
pnode.h	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
posix_acl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
proc_namespace.c
read_write.c	iov_iter: kernel-doc import_iovec() and rw_copy_check_uvector()	2016-10-14 20:00:34 -04:00
readdir.c
select.c	fs/select: add vmalloc fallback for select(2)	2016-10-11 15:06:30 -07:00
seq_file.c	seq/proc: modify seq_put_decimal_[u]ll to take a const char *, not char	2016-10-07 18:46:30 -07:00
signalfd.c
splice.c	fix ITER_PIPE interaction with direct_IO	2016-10-10 13:36:06 -04:00
stack.c
stat.c
statfs.c
super.c	fs/super.c: don't fool lockdep in freeze_super() and thaw_super() paths	2016-10-14 20:41:59 -04:00
sync.c
timerfd.c
userfaultfd.c	mm: introduce fault_env	2016-07-26 16:19:19 -07:00
utimes.c	Merge remote-tracking branch 'jk/vfs' into work.misc	2016-10-08 11:06:08 -04:00
xattr.c	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00