xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x86/ldt: Rename ldt_struct::size to ::nr_entries

Browse Source 
... because this is exactly what it is: the number of entries in the
LDT. Calling it "size" is simply confusing and it is actually begging
to be called "nr_entries" or somesuch, especially if you see constructs
like:

	alloc_size = size * LDT_ENTRY_SIZE;

since LDT_ENTRY_SIZE is the size of a single entry.

There should be no functionality change resulting from this patch, as
the before/after output from tools/testing/selftests/x86/ldt_gdt.c
shows.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Andy Lutomirski <luto@amacapital.net>
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/20170606173116.13977-1-bp@alien8.de
[ Renamed 'n_entries' to 'nr_entries' ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Borislav Petkov
2017-06-06 19:31:16 +02:00
committed by Ingo Molnar
parent 5dd0b16cda
commit bbf79d21bd
6 changed files with 31 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/include/asm/mmu_context.h
View File

@@ -47,7 +47,7 @@ struct ldt_struct {
* allocations, but it's not worth trying to optimize.
*/
struct desc_struct *entries;
unsigned int size;
unsigned int nr_entries;
};
/*
@@ -87,7 +87,7 @@ static inline void load_mm_ldt(struct mm_struct *mm)
*/
if (unlikely(ldt))
set_ldt(ldt->entries, ldt->size);
set_ldt(ldt->entries, ldt->nr_entries);
else
clear_LDT();
#else