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5799b255c4
Patch series "Add kmalloc_array_node() and kcalloc_node()". Our current memeory allocation routines suffer form an API imbalance, for one we have kmalloc_array() and kcalloc() which check for overflows in size multiplication and we have kmalloc_node() and kzalloc_node() which allow for memory allocation on a certain NUMA node but don't check for eventual overflows. This patch (of 6): We have kmalloc_array() and kcalloc() wrappers on top of kmalloc() which ensure us overflow free multiplication for the size of a memory allocation but these implementations are not NUMA-aware. Likewise we have kmalloc_node() which is a NUMA-aware version of kmalloc() but the implementation is not aware of any possible overflows in eventual size calculations. Introduce a combination of the two above cases to have a NUMA-node aware version of kmalloc_array() and kcalloc(). Link: http://lkml.kernel.org/r/20170927082038.3782-2-jthumshirn@suse.de Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Cc: Christoph Lameter <cl@linux.com> Cc: Damien Le Moal <damien.lemoal@wdc.com> Cc: David Rientjes <rientjes@google.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Doug Ledford <dledford@redhat.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Mike Marciniszyn <infinipath@intel.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com> Cc: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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