d7e78706e4
Currently perf_mmap_alloc_page() is used to allocate memory in rb_alloc(), but using free_page() to free memory in the failure path. It's better to use perf_mmap_free_page() instead. Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <jolsa@redhat.co> Cc: <acme@kernel.org> Cc: <mingo@redhat.com> Cc: <mark.rutland@arm.com> Cc: <namhyung@kernel.org> Cc: <alexander.shishkin@linux.intel.com> Link: https://lkml.kernel.org/r/575c7e8c-90c7-4e3a-b41d-f894d8cdbd7f@huawei.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 Restructured Text 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.