From: Michael Jeanson <mjeanson@efficios.com>
Date: Fri, 2 Oct 2020 17:03:34 +0000 (-0400)
Subject: Add 'kernel_read' wrapper for kernels < v4.14
X-Git-Tag: v2.13.0-rc1~165
X-Git-Url: http://git.lttng.org./?a=commitdiff_plain;h=62d0a59ccfae6bd4a60f9f706431991a6dbf976f;hp=62d0a59ccfae6bd4a60f9f706431991a6dbf976f;p=lttng-modules.git

Add 'kernel_read' wrapper for kernels < v4.14

See upstream commit:

  commit bdd1d2d3d251c65b74ac4493e08db18971c09240
  Author: Christoph Hellwig <hch@lst.de>
  Date:   Fri Sep 1 17:39:13 2017 +0200

    fs: fix kernel_read prototype

    Use proper ssize_t and size_t types for the return value and count
    argument, move the offset last and make it an in/out argument like
    all other read/write helpers, and make the buf argument a void pointer
    to get rid of lots of casts in the callers.

Change-Id: I825c3fcbcc17e9b46e2a661fadc66b52a94eb2da
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---