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| author |   Catalin Marinas <catalin.marinas@arm.com> | 2019-09-23 15:34:02 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-24 15:54:07 -0700 |
| commit | 0647398a8c7bd55e0b7565c5076e86b7c3c204c5 (patch) | |
| tree | 6613297ab1c94ffc0bfb60d810592d1d61b48319 /init/main.c | |
| parent | mm: kmemleak: make the tool tolerant to struct scan_area allocation failures (diff) | |
| download | linux-dev-0647398a8c7bd55e0b7565c5076e86b7c3c204c5.tar.xz linux-dev-0647398a8c7bd55e0b7565c5076e86b7c3c204c5.zip | |
mm: kmemleak: simple memory allocation pool for kmemleak objects
Add a memory pool for struct kmemleak_object in case the normal
kmem_cache_alloc() fails under the gfp constraints passed by the caller.
The mem_pool[] array size is currently fixed at 16000.
We are not using the existing mempool kernel API since this requires
the slab allocator to be available (for pool->elements allocation). A
subsequent kmemleak patch will replace the static early log buffer with
the pool allocation introduced here and this functionality is required
to be available before the slab was initialised.
Link: http://lkml.kernel.org/r/20190812160642.52134-3-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qian Cai <cai@lca.pw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init/main.c')
0 files changed, 0 insertions, 0 deletions