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| author | Pavel Tatashin <pasha.tatashin@oracle.com> | 2017-11-15 17:36:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 18:21:05 -0800 |
| commit | df8ee578894ebb591c2995cce422e6189c8bb757 (patch) | |
| tree | f6e97f484cad6017908bfe6e240d549546d50624 /arch/sparc | |
| parent | 2a20aa171071a334d80c4e5d5af719d8374702fc (diff) | |
| download | linux-stable-df8ee578894ebb591c2995cce422e6189c8bb757.tar.gz linux-stable-df8ee578894ebb591c2995cce422e6189c8bb757.tar.bz2 linux-stable-df8ee578894ebb591c2995cce422e6189c8bb757.zip | |
sparc64: simplify vmemmap_populate
Remove duplicating code by using common functions vmemmap_pud_populate
and vmemmap_pgd_populate.
Link: http://lkml.kernel.org/r/20171013173214.27300-5-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 984e9d65ea0d..051f73401793 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2644,30 +2644,19 @@ int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, vstart = vstart & PMD_MASK; vend = ALIGN(vend, PMD_SIZE); for (; vstart < vend; vstart += PMD_SIZE) { - pgd_t *pgd = pgd_offset_k(vstart); + pgd_t *pgd = vmemmap_pgd_populate(vstart, node); unsigned long pte; pud_t *pud; pmd_t *pmd; - if (pgd_none(*pgd)) { - pud_t *new = vmemmap_alloc_block(PAGE_SIZE, node); + if (!pgd) + return -ENOMEM; - if (!new) - return -ENOMEM; - pgd_populate(&init_mm, pgd, new); - } - - pud = pud_offset(pgd, vstart); - if (pud_none(*pud)) { - pmd_t *new = vmemmap_alloc_block(PAGE_SIZE, node); - - if (!new) - return -ENOMEM; - pud_populate(&init_mm, pud, new); - } + pud = vmemmap_pud_populate(pgd, vstart, node); + if (!pud) + return -ENOMEM; pmd = pmd_offset(pud, vstart); - pte = pmd_val(*pmd); if (!(pte & _PAGE_VALID)) { void *block = vmemmap_alloc_block(PMD_SIZE, node); |