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Change xa_alloc_cyclic() to return 0 even on wrap-around. Do the same for xa_alloc_cyclic_irq() and xa_alloc_cyclic_bh(). This will prevent any future bug of treating return of 1 as an error: int ret = xa_alloc_cyclic(...) if (ret) // currently mishandles ret==1 goto failure; If there will be someone interested in when wrap-around occurs, there is still __xa_alloc_cyclic() that behaves as before. For now there is no such user. Link: https://lkml.kernel.org/r/20250320102219.8101-1-przemyslaw.kitszel@intel.com Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Suggested-by: Matthew Wilcox <willy@infradead.org> Link: https://lore.kernel.org/netdev/Z9gUd-5t8b5NX2wE@casper.infradead.org Cc: Andriy Shevchenko <andriy.shevchenko@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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.