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mm: remove VM_FAULT_MINOR

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The define has a comment from Nick Piggin from 2007:

 /* For backwards compat. Remove me quickly. */

I guess 9 years should not be too hurried sense of 'quickly' even for
kernel measures.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2016-03-17 14:19:55 -07:00 committed by Linus Torvalds
parent 870d4b12ad
commit 0e8fb9312f
5 changed files with 4 additions and 6 deletions
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2
arch/arm/mm/fault.c
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@ -346,7 +346,7 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
up_read(&mm->mmap_sem);
/*
* Handle the "normal" case first - VM_FAULT_MAJOR / VM_FAULT_MINOR
* Handle the "normal" case first - VM_FAULT_MAJOR
*/
if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP | VM_FAULT_BADACCESS))))
return 0;

2
arch/arm64/mm/fault.c
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@ -295,7 +295,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
up_read(&mm->mmap_sem);
/*
* Handle the "normal" case first - VM_FAULT_MAJOR / VM_FAULT_MINOR
* Handle the "normal" case first - VM_FAULT_MAJOR
*/
if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP |
VM_FAULT_BADACCESS))))

2
arch/unicore32/mm/fault.c
View File

@ -276,7 +276,7 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
up_read(&mm->mmap_sem);
/*
* Handle the "normal" case first - VM_FAULT_MAJOR / VM_FAULT_MINOR
* Handle the "normal" case first - VM_FAULT_MAJOR
*/
if (likely(!(fault &
(VM_FAULT_ERROR | VM_FAULT_BADMAP | VM_FAULT_BADACCESS))))

2
arch/xtensa/mm/fault.c
View File

@ -146,7 +146,7 @@ void do_page_fault(struct pt_regs *regs)
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
if (flags & VM_FAULT_MAJOR)
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
else if (flags & VM_FAULT_MINOR)
else
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
return;

2
include/linux/mm.h
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@ -1052,8 +1052,6 @@ static inline void clear_page_pfmemalloc(struct page *page)
* just gets major/minor fault counters bumped up.
*/
#define VM_FAULT_MINOR 0 /* For backwards compat. Remove me quickly. */
#define VM_FAULT_OOM 0x0001
#define VM_FAULT_SIGBUS 0x0002
#define VM_FAULT_MAJOR 0x0004