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| author | David S. Miller <davem@davemloft.net> | 2014-11-01 18:53:27 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-01 18:53:27 (GMT) |
| commit | 55b42b5ca2dcf143465968697fe6c6503b05fca1 (patch) | |
| tree | 91878cd53efc44ba67244d4d3897020828c87c01 /arch/arm64/mm/pgd.c | |
| parent | 10738eeaf4ab3de092586cefcc082e7d43ca0044 (diff) | |
| parent | ec1f1276022e4e3ca40871810217d513e39ff250 (diff) | |
| download | linux-55b42b5ca2dcf143465968697fe6c6503b05fca1.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/phy/marvell.c
Simple overlapping changes in drivers/net/phy/marvell.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64/mm/pgd.c')
| -rw-r--r-- | arch/arm64/mm/pgd.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c index 62c6101..6682b36 100644 --- a/arch/arm64/mm/pgd.c +++ b/arch/arm64/mm/pgd.c @@ -30,12 +30,14 @@ #define PGD_SIZE (PTRS_PER_PGD * sizeof(pgd_t)) +static struct kmem_cache *pgd_cache; + pgd_t *pgd_alloc(struct mm_struct *mm) { if (PGD_SIZE == PAGE_SIZE) return (pgd_t *)get_zeroed_page(GFP_KERNEL); else - return kzalloc(PGD_SIZE, GFP_KERNEL); + return kmem_cache_zalloc(pgd_cache, GFP_KERNEL); } void pgd_free(struct mm_struct *mm, pgd_t *pgd) @@ -43,5 +45,17 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd) if (PGD_SIZE == PAGE_SIZE) free_page((unsigned long)pgd); else - kfree(pgd); + kmem_cache_free(pgd_cache, pgd); +} + +static int __init pgd_cache_init(void) +{ + /* + * Naturally aligned pgds required by the architecture. + */ + if (PGD_SIZE != PAGE_SIZE) + pgd_cache = kmem_cache_create("pgd_cache", PGD_SIZE, PGD_SIZE, + SLAB_PANIC, NULL); + return 0; } +core_initcall(pgd_cache_init); |