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| author | Roman Penyaev <rpenyaev@suse.de> | 2019-03-05 15:43:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-05 21:07:15 -0800 |
| commit | c67dc6247576250a9c9f09adcabad0385a1e7d73 (patch) | |
| tree | 182cf0bf96bdac8e9e57658b5403eaf5a6432506 /mm | |
| parent | 401592d2e095947344e10ec0623adbcd58934dd4 (diff) | |
| download | linux-stable-c67dc6247576250a9c9f09adcabad0385a1e7d73.tar.gz linux-stable-c67dc6247576250a9c9f09adcabad0385a1e7d73.tar.bz2 linux-stable-c67dc6247576250a9c9f09adcabad0385a1e7d73.zip | |
mm/vmalloc: do not call kmemleak_free() on not yet accounted memory
__vmalloc_area_node() calls vfree() on error path, which in turn calls
kmemleak_free(), but area is not yet accounted by kmemleak_vmalloc().
Link: http://lkml.kernel.org/r/20190103145954.16942-3-rpenyaev@suse.de
Signed-off-by: Roman Penyaev <rpenyaev@suse.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Joe Perches <joe@perches.com>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: 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 'mm')
| -rw-r--r-- | mm/vmalloc.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 421ae07ffb37..351ec73b3288 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1565,6 +1565,14 @@ void vfree_atomic(const void *addr) __vfree_deferred(addr); } +static void __vfree(const void *addr) +{ + if (unlikely(in_interrupt())) + __vfree_deferred(addr); + else + __vunmap(addr, 1); +} + /** * vfree - release memory allocated by vmalloc() * @addr: memory base address @@ -1591,10 +1599,8 @@ void vfree(const void *addr) if (!addr) return; - if (unlikely(in_interrupt())) - __vfree_deferred(addr); - else - __vunmap(addr, 1); + + __vfree(addr); } EXPORT_SYMBOL(vfree); @@ -1709,7 +1715,7 @@ fail: warn_alloc(gfp_mask, NULL, "vmalloc: allocation failure, allocated %ld of %ld bytes", (area->nr_pages*PAGE_SIZE), area->size); - vfree(area->addr); + __vfree(area->addr); return NULL; } |