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The number of slabs can easily exceed the hard coded MAX_SLABS in the
slabinfo tool, causing it to overwrite memory and crash.
Increase the value of MAX_SLABS, and check if that has been exceeded for
each new slab, instead of at the end when it's already too late. Also
move the check for MAX_ALIASES into the loop body.
Link: https://lkml.kernel.org/r/20241031105534.565533-1-marc.c.dionne@gmail.com
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Commit e6d2c436ff693 ("tools/mm: allow users to provide additional
cflags/ldflags") passes now CFLAGS to Makefile. With this, build systems
with default -Werror enabled found:
slabinfo.c:1300:25: error: ignoring return value of 'chdir'
declared with attribute 'warn_unused_result' [-Werror=unused-result]
chdir("..");
^~~~~~~~~~~
page-types.c:397:35: error: format '%lu' expects argument of type
'long unsigned int', but argument 2 has type 'uint64_t'
{aka 'long long unsigned int'} [-Werror=format=]
printf("%lu\t", mapcnt0);
~~^ ~~~~~~~
..
Fix page-types by using PRIu64 for uint64_t prints and check in slabinfo
for return code on chdir("..").
Link: https://lkml.kernel.org/r/c1ceb507-94bc-461c-934d-c19b77edd825@gmail.com
Fixes: e6d2c436ff69 ("tools/mm: allow users to provide additional cflags/ldflags")
Signed-off-by: Wladislav Wiebe <wladislav.kw@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Herton R. Krzesinski <herton@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Rename tools/vm to tools/mm for being more consistent with the code and
documentation directories, and won't be confused with virtual machines.
Link: https://lkml.kernel.org/r/20230103180754.129637-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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