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Since commit4c39529663("slab: Warn on duplicate cache names when DEBUG_VM=y"), slab complains about duplicate cache names. Hence this patch. The approach is as follows: - Maintain an xarray with the slab size as index and a reference count and a kmem_cache pointer as contents. Use srpt-${slab_size} as kmem cache name. - Use 512-byte alignment for all slabs instead of only for some of the slabs. - Increment the reference count instead of calling kmem_cache_create(). - Decrement the reference count instead of calling kmem_cache_destroy(). Fixes:5dabcd0456("RDMA/srpt: Add support for immediate data") Link: https://patch.msgid.link/r/20241009210048.4122518-1-bvanassche@acm.org Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com> Closes: https://lore.kernel.org/linux-block/xpe6bea7rakpyoyfvspvin2dsozjmjtjktpph7rep3h25tv7fb@ooz4cu5z6bq6/ Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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.