https://github.com/torvalds/linux
Revision 928501344fc645f80390afc12708c81b3595745d authored by Andrey Konovalov on 26 February 2021, 01:19:55 UTC, committed by Linus Torvalds on 26 February 2021, 17:41:02 UTC
Patch series "kasan: optimizations and fixes for HW_TAGS", v4. This patchset makes the HW_TAGS mode more efficient, mostly by reworking poisoning approaches and simplifying/inlining some internal helpers. With this change, the overhead of HW_TAGS annotations excluding setting and checking memory tags is ~3%. The performance impact caused by tags will be unknown until we have hardware that supports MTE. As a side-effect, this patchset speeds up generic KASAN by ~15%. This patch (of 13): Currently KASAN saves allocation stacks in both kasan_slab_alloc() and kasan_kmalloc() annotations. This patch changes KASAN to save allocation stacks for slab objects from kmalloc caches in kasan_kmalloc() only, and stacks for other slab objects in kasan_slab_alloc() only. This change requires ____kasan_kmalloc() knowing whether the object belongs to a kmalloc cache. This is implemented by adding a flag field to the kasan_info structure. That flag is only set for kmalloc caches via a new kasan_cache_create_kmalloc() annotation. Link: https://lkml.kernel.org/r/cover.1612546384.git.andreyknvl@google.com Link: https://lkml.kernel.org/r/7c673ebca8d00f40a7ad6f04ab9a2bddeeae2097.1612546384.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: 928501344fc645f80390afc12708c81b3595745d authored by Andrey Konovalov on 26 February 2021, 01:19:55 UTC
kasan, mm: don't save alloc stacks twice
kasan, mm: don't save alloc stacks twice
Tip revision: 9285013
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ac97 | ||
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asihpi | ||
au88x0 | ||
aw2 | ||
ca0106 | ||
cs46xx | ||
cs5535audio | ||
ctxfi | ||
echoaudio | ||
emu10k1 | ||
hda | ||
ice1712 | ||
korg1212 | ||
lola | ||
lx6464es | ||
mixart | ||
nm256 | ||
oxygen | ||
pcxhr | ||
riptide | ||
rme9652 | ||
trident | ||
vx222 | ||
ymfpci | ||
Kconfig | -rw-r--r-- | 25.4 KB |
Makefile | -rw-r--r-- | 2.2 KB |
ad1889.c | -rw-r--r-- | 24.7 KB |
ad1889.h | -rw-r--r-- | 7.9 KB |
ak4531_codec.c | -rw-r--r-- | 16.3 KB |
als300.c | -rw-r--r-- | 20.6 KB |
als4000.c | -rw-r--r-- | 29.6 KB |
atiixp.c | -rw-r--r-- | 44.0 KB |
atiixp_modem.c | -rw-r--r-- | 34.2 KB |
azt3328.c | -rw-r--r-- | 80.8 KB |
azt3328.h | -rw-r--r-- | 15.5 KB |
bt87x.c | -rw-r--r-- | 28.5 KB |
cmipci.c | -rw-r--r-- | 99.9 KB |
cs4281.c | -rw-r--r-- | 62.5 KB |
cs5530.c | -rw-r--r-- | 6.6 KB |
ens1370.c | -rw-r--r-- | 76.9 KB |
ens1371.c | -rw-r--r-- | 38 bytes |
es1938.c | -rw-r--r-- | 53.9 KB |
es1968.c | -rw-r--r-- | 77.8 KB |
fm801.c | -rw-r--r-- | 41.4 KB |
intel8x0.c | -rw-r--r-- | 88.8 KB |
intel8x0m.c | -rw-r--r-- | 35.8 KB |
maestro3.c | -rw-r--r-- | 80.8 KB |
rme32.c | -rw-r--r-- | 56.0 KB |
rme96.c | -rw-r--r-- | 70.0 KB |
sis7019.c | -rw-r--r-- | 38.5 KB |
sis7019.h | -rw-r--r-- | 12.7 KB |
sonicvibes.c | -rw-r--r-- | 49.7 KB |
via82xx.c | -rw-r--r-- | 75.7 KB |
via82xx_modem.c | -rw-r--r-- | 32.9 KB |
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