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x86/fpu: Rename 'xsave_hdr' to 'header'

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Code like:

           fpu->state->xsave.xsave_hdr.xstate_bv |= XSTATE_FP;

is an eyesore, because not only is the words 'xsave' and 'state'
are repeated twice times (!), but also because of the 'hdr' and 'bv'
abbreviations that are pretty meaningless at a first glance.

Start cleaning this up by renaming 'xsave_hdr' to 'header'.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
2015-04-24 10:14:36 +02:00
parent 8dcea8db79
commit 3a54450b5e
8 changed files with 30 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/x86/include/asm/user.h
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@@ -14,7 +14,7 @@ struct user_ymmh_regs {
__u32 ymmh_space[64];
};
struct user_xsave_hdr {
struct user_xstate_header {
__u64 xstate_bv;
__u64 reserved1[2];
__u64 reserved2[5];
@@ -41,11 +41,11 @@ struct user_xsave_hdr {
* particular process/thread.
*
* Also when the user modifies certain state FP/SSE/etc through the
* ptrace interface, they must ensure that the xsave_hdr.xstate_bv
* ptrace interface, they must ensure that the header.xstate_bv
* bytes[512..519] of the memory layout are updated correspondingly.
* i.e., for example when FP state is modified to a non-init state,
* xsave_hdr.xstate_bv's bit 0 must be set to '1', when SSE is modified to
* non-init state, xsave_hdr.xstate_bv's bit 1 must to be set to '1', etc.
* header.xstate_bv's bit 0 must be set to '1', when SSE is modified to
* non-init state, header.xstate_bv's bit 1 must to be set to '1', etc.
*/
#define USER_XSTATE_FX_SW_WORDS 6
#define USER_XSTATE_XCR0_WORD 0
@@ -55,7 +55,7 @@ struct user_xstateregs {
__u64 fpx_space[58];
__u64 xstate_fx_sw[USER_XSTATE_FX_SW_WORDS];
} i387;
struct user_xsave_hdr xsave_hdr;
struct user_xstate_header header;
struct user_ymmh_regs ymmh;
/* further processor state extensions go here */
};