Wilco Dijkstra 2e8a940df1 malloc: Avoid accessing /sys/kernel/mm files ...

On AArch64 malloc always checks /sys/kernel/mm/transparent_hugepage/enabled to
set the THP mode.  However this check is quite expensive and the file may not
be accessible in containers. If DEFAULT_THP_PAGESIZE is non-zero, use
malloc_thp_mode_madvise so that we take advantage of THP in all cases.  Since
madvise is a fast systemcall, it adds only a small overhead compared to the
cost of mmap and populating the pages.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>

2026-03-04 14:21:40 +00:00

..

alloc_buffer_alloc_array.c

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alloc_buffer_allocate.c

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alloc_buffer_copy_bytes.c

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alloc_buffer_copy_string.c

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alloc_buffer_create_failure.c

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arena.c

malloc: Avoid accessing /sys/kernel/mm files

2026-03-04 14:21:40 +00:00

Depend

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dynarray_at_failure.c

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dynarray_emplace_enlarge.c

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dynarray_finalize.c

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dynarray_resize_clear.c

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dynarray_resize.c

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dynarray-skeleton.c

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dynarray.h

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hooks.c

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Makefile

malloc: Correct Makefile sorting glitches

2026-01-24 10:29:39 +01:00

malloc-check.c

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malloc-debug.c

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malloc-internal.h

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malloc.c

malloc: Avoid accessing /sys/kernel/mm files

2026-03-04 14:21:40 +00:00

malloc.h

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mallocbug.c

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mcheck-impl.c

misc: Fix a few typos in comments

2026-03-04 09:04:14 +00:00

mcheck-init.c

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mcheck.c

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mcheck.h

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memusage.c

misc: Fix a few typos in comments

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memusage.sh

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memusagestat.c

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morecore.c

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mtrace-impl.c

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mtrace.c

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mtrace.pl

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obstack.c

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obstack.h

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reallocarray.c

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scratch_buffer_grow_preserve.c

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scratch_buffer_grow.c

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scratch_buffer_set_array_size.c

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set-freeres.c

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thread-freeres.c

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tst-aligned_alloc-lib.c

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tst-aligned-alloc-random-thread-cross.c

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tst-aligned-alloc-random-thread.c

misc: Fix a few typos in comments

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tst-aligned-alloc-random.c

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tst-aligned-alloc-static.c

aligned_alloc: conform to C17

2023-05-08 16:40:10 -04:00

tst-aligned-alloc.c

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tst-alloc_buffer.c

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tst-calloc.c

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tst-compathooks-off.c

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tst-compathooks-on.c

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tst-dynarray-at-fail.c

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tst-dynarray-fail.c

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tst-dynarray-shared.h

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tst-dynarray.c

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tst-free-aligned-sized-trace.c

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tst-free-aligned-sized.c

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tst-free-errno.c

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tst-free-sized-trace.c

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tst-free-sized.c

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tst-interpose-aux-nothread.c

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tst-interpose-aux-thread.c

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tst-interpose-aux.c

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tst-interpose-aux.h

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tst-interpose-nothread.c

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tst-interpose-skeleton.c

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tst-interpose-static-nothread.c

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tst-interpose-static-thread.c

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tst-interpose-thread.c

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tst-mallinfo2.c

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tst-malloc_info.c

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tst-malloc-alternate-path.c

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tst-malloc-aux.h

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tst-malloc-backtrace.c

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tst-malloc-check.c

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tst-malloc-fork-deadlock.c

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tst-malloc-random.c

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tst-malloc-stats-cancellation.c

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tst-malloc-tcache-leak.c

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tst-malloc-thread-exit.c

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tst-malloc-thread-fail.c

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tst-malloc-too-large.c

memalign: reinstate alignment overflow check (CVE-2026-0861)

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tst-malloc-usable-tunables.c

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tst-malloc-usable.c

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tst-malloc.c

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tst-mallocalign1.c

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tst-mallocfork2.c

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tst-mallocfork3.c

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tst-mallocfork.c

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tst-mallocstate.c

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tst-mallopt.c

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tst-memalign-2.c

malloc: Extend malloc function hiding to tst-memalign-{2,3} (BZ #32366)

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tst-memalign-3.c

malloc: Extend malloc function hiding to tst-memalign-{2,3} (BZ #32366)

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tst-memalign.c

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tst-mtrace.c

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tst-mtrace.sh

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tst-obstack.c

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tst-posix_memalign.c

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tst-pvalloc-fortify.c

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tst-pvalloc.c

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tst-realloc.c

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tst-reallocarray.c

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tst-safe-linking.c

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tst-scratch_buffer.c

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tst-tcfree1.c

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tst-tcfree2.c

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tst-tcfree3.c

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tst-tcfree4.c

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tst-trim1.c

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tst-valloc.c

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Versions

malloc: add free_sized and free_aligned_sized from C23

2025-11-19 13:47:53 -03:00