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authorCatalin Marinas <catalin.marinas@arm.com>2013-11-13 00:07:45 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 04:09:07 +0100
commit7f88f88f83ed609650a01b18572e605ea50cd163 (patch)
tree7a515679de2418dbf006bdc40c23b8c6f6b73fce /lib/uuid.c
parentmm/sparsemem: fix a bug in free_map_bootmem when CONFIG_SPARSEMEM_VMEMMAP (diff)
downloadlinux-7f88f88f83ed609650a01b18572e605ea50cd163.tar.xz
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mm: kmemleak: avoid false negatives on vmalloc'ed objects
Commit 248ac0e1943a ("mm/vmalloc: remove guard page from between vmap blocks") had the side effect of making vmap_area.va_end member point to the next vmap_area.va_start. This was creating an artificial reference to vmalloc'ed objects and kmemleak was rarely reporting vmalloc() leaks. This patch marks the vmap_area containing pointers explicitly and reduces the min ref_count to 2 as vm_struct still contains a reference to the vmalloc'ed object. The kmemleak add_scan_area() function has been improved to allow a SIZE_MAX argument covering the rest of the object (for simpler calling sites). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/uuid.c')
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