Borislav Petkov bc696ca05f x86/cpufeature: Replace the old static_cpu_has() with safe variant ... So the old one didn't work properly before alternatives had run. And it was supposed to provide an optimized JMP because the assumption was that the offset it is jumping to is within a signed byte and thus a two-byte JMP. So I did an x86_64 allyesconfig build and dumped all possible sites where static_cpu_has() was used. The optimization amounted to all in all 12(!) places where static_cpu_has() had generated a 2-byte JMP. Which has saved us a whopping 36 bytes! This clearly is not worth the trouble so we can remove it. The only place where the optimization might count - in __switch_to() - we will handle differently. But that's not subject of this patch. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1453842730-28463-6-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-01-30 11:22:18 +01:00
..
tests	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
Kconfig	rcu: Make SRCU optional by using CONFIG_SRCU	2015-01-06 11:04:29 -08:00
Makefile	Btrfs: add free space tree sanity tests	2015-12-17 12:16:47 -08:00
acl.c	Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2016-01-18 12:44:40 -08:00
async-thread.c	btrfs: use GFP_KERNEL for allocations of workqueues	2015-12-03 15:03:43 +01:00
async-thread.h	btrfs: async_thread: Fix workqueue 'max_active' value when initializing	2015-08-31 11:46:40 -07:00
backref.c	btrfs: fix iterator with update error in backref.c	2016-01-15 19:27:18 +01:00
backref.h	btrfs: cleanup, remove inode_item_info helper	2015-01-14 19:23:47 +01:00
btrfs_inode.h	btrfs: put delayed item hook into inode	2016-01-07 14:26:58 +01:00
check-integrity.c	btrfs: use list_for_each_entry* in check-integrity.c	2016-01-07 14:38:42 +01:00
check-integrity.h	block: submit_bio_wait() conversions	2013-11-24 16:33:41 -07:00
compression.c	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
compression.h	btrfs: constify structs with op functions or static definitions	2015-02-16 18:48:44 +01:00
ctree.c	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
ctree.h	Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2016-01-22 11:49:21 -08:00
delayed-inode.c	btrfs: zero out delayed node upon allocation	2016-01-07 14:30:17 +01:00
delayed-inode.h	Btrfs: introduce the delayed inode ref deletion for the single link inode	2014-01-28 13:20:09 -08:00
delayed-ref.c	btrfs: better packing of btrfs_delayed_extent_op	2016-01-07 14:26:58 +01:00
delayed-ref.h	btrfs: better packing of btrfs_delayed_extent_op	2016-01-07 14:26:58 +01:00
dev-replace.c	btrfs: cleanup, stop casting for extent_map->lookup everywhere	2016-01-15 19:22:28 +01:00
dev-replace.h	Btrfs: add new sources for device replace code	2012-12-12 17:15:41 -05:00
dir-item.c	Btrfs: make xattr replace operations atomic	2014-11-20 17:20:07 -08:00
disk-io.c	x86/cpufeature: Replace the old static_cpu_has() with safe variant	2016-01-30 11:22:18 +01:00
disk-io.h	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
export.c	BTRFS: support NFSv2 export	2015-10-06 06:55:23 -07:00
export.h	…
extent-tree.c	btrfs: Fix no_space in write and rm loop	2016-01-20 07:22:14 -08:00
extent_io.c	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
extent_io.h	Merge branch 'freespace-4.5' into for-linus-4.5	2015-12-23 13:29:09 -08:00
extent_map.c	btrfs: cleanup, stop casting for extent_map->lookup everywhere	2016-01-15 19:22:28 +01:00
extent_map.h	btrfs: cleanup, stop casting for extent_map->lookup everywhere	2016-01-15 19:22:28 +01:00
file-item.c	btrfs: cleanup, use enum values for btrfs_path reada	2016-01-07 15:01:15 +01:00
file.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
free-space-cache.c	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
free-space-cache.h	btrfs: constify remaining structs with function pointers	2016-01-07 15:01:14 +01:00
free-space-tree.c	btrfs: don't run delayed references while we are creating the free space tree	2015-12-30 07:52:35 -08:00
free-space-tree.h	Btrfs: implement the free space B-tree	2015-12-17 12:16:47 -08:00
hash.c	btrfs: LLVMLinux: Remove VLAIS	2014-10-14 10:51:22 +02:00
hash.h	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
inode-item.c	Btrfs: consolidate btrfs_error() to btrfs_std_error()	2015-09-29 16:30:00 +02:00
inode-map.c	Merge branch 'misc-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-19 18:21:30 -08:00
inode-map.h	Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots	2016-01-15 19:25:02 +01:00
inode.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
ioctl.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
locking.c	btrfs: cleanup, remove stray return statements	2016-01-07 14:30:52 +01:00
locking.h	btrfs: fix lockups from btrfs_clear_path_blocking	2014-11-19 10:34:35 -08:00
lzo.c	btrfs: constify structs with op functions or static definitions	2015-02-16 18:48:44 +01:00
math.h	btrfs: cleanup 64bit/32bit divs, compile time constants	2015-03-03 17:23:57 +01:00
ordered-data.c	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
ordered-data.h	Btrfs: change how we wait for pending ordered extents	2015-10-21 18:51:40 -07:00
orphan.c	btrfs: kill the key type accessor helpers	2014-09-17 13:37:12 -07:00
print-tree.c	btrfs: remove parameter blocksize from read_tree_block	2014-10-02 17:14:50 +02:00
print-tree.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
props.c	btrfs: cleanup iterating over prop_handlers array	2015-10-21 18:28:48 +02:00
props.h	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
qgroup.c	btrfs: qgroup: account shared subtree during snapshot delete	2015-11-25 05:27:33 -08:00
qgroup.h	btrfs: qgroup: Check if qgroup reserved space leaked	2015-10-21 18:41:10 -07:00
raid56.c	btrfs: raid56: Use raid_write_end_io for scrub	2016-01-20 07:22:18 -08:00
raid56.h	Btrfs: add RAID 5/6 BTRFS_RBIO_REBUILD_MISSING operation	2015-08-09 07:34:26 -07:00
rcu-string.h	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
reada.c	btrfs: reada: Fix returned errno code	2015-10-21 18:29:50 +02:00
relocation.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
root-tree.c	Merge branch 'cleanups/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.4	2015-10-21 18:21:40 -07:00
scrub.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
send.c	Btrfs: send, don't BUG_ON() when an empty symlink is found	2015-12-31 18:08:20 +00:00
send.h	Btrfs: use linux/sizes.h to represent constants	2016-01-07 14:38:02 +01:00
struct-funcs.c	Btrfs: rewrite BTRFS_SETGET_FUNCS	2012-07-23 16:28:06 -04:00
super.c	Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2016-01-22 11:49:21 -08:00
sysfs.c	Btrfs: rename super_kobj to fsid_kobj	2015-09-29 16:29:59 +02:00
sysfs.h	Btrfs: rename btrfs_kobj_rm_device to btrfs_sysfs_rm_device_link	2015-09-29 16:29:59 +02:00
transaction.c	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
transaction.h	btrfs: preallocate path for snapshot creation at ioctl time	2016-01-07 15:20:55 +01:00
tree-defrag.c	Btrfs: fix locking bugs when defragging leaves	2015-12-18 02:51:32 +00:00
tree-log.c	Btrfs: fix regression running delayed references when using qgroups	2015-10-25 19:53:26 +00:00
tree-log.h	Btrfs: fix metadata inconsistencies after directory fsync	2015-03-26 17:56:23 -07:00
ulist.c	btrfs: ulist: Add ulist_del() function.	2015-06-10 09:26:17 -07:00
ulist.h	btrfs: ulist: Add ulist_del() function.	2015-06-10 09:26:17 -07:00
uuid-tree.c	Btrfs: make btrfs_search_forward return with nodes unlocked	2014-09-17 13:38:02 -07:00
volumes.c	btrfs: Use direct way to determine raid56 write/recover mode	2016-01-19 18:43:45 -08:00
volumes.h	Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5	2016-01-11 06:08:37 -08:00
xattr.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
xattr.h	btrfs: Use xattr handler infrastructure	2015-12-06 21:34:14 -05:00
zlib.c	btrfs: constify structs with op functions or static definitions	2015-02-16 18:48:44 +01:00