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7338999ca3
If the same size kmalloc cache already exists, it should not be created again. So there is the check for NULL kmalloc_caches before calling the kmalloc creation function. However, new_kmalloc_cache() itself checks NULL kmalloc_cahces before cache creation. Therefore, the NULL check is not necessary in this function. Signed-off-by: Hyunmin Lee <hyunminlr@gmail.com> Co-developed-by: Jeungwoo Yoo <casionwoo@gmail.com> Signed-off-by: Jeungwoo Yoo <casionwoo@gmail.com> Co-developed-by: Sangyun Kim <sangyun.kim@snu.ac.kr> Signed-off-by: Sangyun Kim <sangyun.kim@snu.ac.kr> Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by: Christoph Lameter <cl@linux.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.