File makedumpfile-always-use-bigger-SECTION_MAP_MASK.patch of Package makedumpfile.14460
From: Petr Tesarik <ptesarik@suse.com> Date: Mon, 29 Jan 2018 14:59:28 +0200 Subject: Always use bigger SECTION_MAP_MASK References: bsc#1066811, bsc#1067703 Upstream: not yet Since kernel commit 2d070eab2e82 merely reused a previously unused bit, it is safe to mask it off for all kernel versions, because it had always been zero (even in kernels < 4.13). Signed-off-by: Petr Tesarik <ptesarik@suse.com> --- makedumpfile.c | 5 +---- makedumpfile.h | 1 - 2 files changed, 1 insertion(+), 5 deletions(-) --- a/makedumpfile.c +++ b/makedumpfile.c @@ -3337,10 +3337,7 @@ section_mem_map_addr(unsigned long addr) return NOT_KV_ADDR; } map = ULONG(mem_section + OFFSET(mem_section.section_mem_map)); - if (info->kernel_version < KERNEL_VERSION(4, 13, 0)) - map &= SECTION_MAP_MASK_4_12; - else - map &= SECTION_MAP_MASK; + map &= SECTION_MAP_MASK; free(mem_section); return map; --- a/makedumpfile.h +++ b/makedumpfile.h @@ -186,7 +186,6 @@ isAnon(unsigned long mapping) #define SECTION_NR_TO_ROOT(sec) ((sec) / SECTIONS_PER_ROOT()) #define SECTION_IS_ONLINE (1UL<<2) #define SECTION_MAP_LAST_BIT (1UL<<3) -#define SECTION_MAP_MASK_4_12 (~(SECTION_IS_ONLINE-1)) #define SECTION_MAP_MASK (~(SECTION_MAP_LAST_BIT-1)) #define NR_SECTION_ROOTS() divideup(num_section, SECTIONS_PER_ROOT()) #define SECTION_NR_TO_PFN(sec) ((sec) << PFN_SECTION_SHIFT())
