From fd37721803c6e73619108f76ad2e12a9aa5fafaf Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Thu, 28 Dec 2023 17:47:03 +0300 Subject: mm, treewide: introduce NR_PAGE_ORDERS NR_PAGE_ORDERS defines the number of page orders supported by the page allocator, ranging from 0 to MAX_ORDER, MAX_ORDER + 1 in total. NR_PAGE_ORDERS assists in defining arrays of page orders and allows for more natural iteration over them. [kirill.shutemov@linux.intel.com: fixup for kerneldoc warning] Link: https://lkml.kernel.org/r/20240101111512.7empzyifq7kxtzk3@box Link: https://lkml.kernel.org/r/20231228144704.14033-1-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov Reviewed-by: Zi Yan Cc: Linus Torvalds Signed-off-by: Andrew Morton --- arch/arm64/kvm/hyp/include/nvhe/gfp.h | 2 +- arch/sparc/kernel/traps_64.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm64/kvm/hyp/include/nvhe/gfp.h b/arch/arm64/kvm/hyp/include/nvhe/gfp.h index fe5472a184a3..97c527ef53c2 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/gfp.h +++ b/arch/arm64/kvm/hyp/include/nvhe/gfp.h @@ -16,7 +16,7 @@ struct hyp_pool { * API at EL2. */ hyp_spinlock_t lock; - struct list_head free_area[MAX_ORDER + 1]; + struct list_head free_area[NR_PAGE_ORDERS]; phys_addr_t range_start; phys_addr_t range_end; unsigned short max_order; diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index 08ffd17d5ec3..523a6e5ee925 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -897,7 +897,7 @@ void __init cheetah_ecache_flush_init(void) /* Now allocate error trap reporting scoreboard. */ sz = NR_CPUS * (2 * sizeof(struct cheetah_err_info)); - for (order = 0; order <= MAX_ORDER; order++) { + for (order = 0; order < NR_PAGE_ORDERS; order++) { if ((PAGE_SIZE << order) >= sz) break; } -- cgit v1.2.3