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| author | Bruce Ashfield <bruce.ashfield@gmail.com> | 2021-02-02 22:24:02 -0500 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2021-02-03 21:45:49 +0000 |
| commit | 3c9f78f6d74b933a15e6089fc645d706e2ed18d5 (patch) | |
| tree | eee70707c70aa28efc85267071bdb412a1e02f7d /documentation/ref-manual/migration.rst | |
| parent | 1db7f2a8c60ede31770468acbd68e9f4e6f66a53 (diff) | |
| download | poky-3c9f78f6d74b933a15e6089fc645d706e2ed18d5.tar.gz | |
linux-yocto-rt/5.4: fix 5.4-stable caused build breakage
5.4-stable included a backport of:
Author: Eric W. Biederman <ebiederm@xmission.com>
Date: Thu Dec 3 14:11:13 2020 -0600
rwsem: Implement down_read_interruptible
[ Upstream commit 31784cff7ee073b34d6eddabb95e3be2880a425c ]
In preparation for converting exec_update_mutex to a rwsem so that
multiple readers can execute in parallel and not deadlock, add
down_read_interruptible. This is needed for perf_event_open to be
converted (with no semantic changes) from working on a mutex to
wroking on a rwsem.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/87k0tybqfy.fsf@x220.int.ebiederm.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
We implement a -rt variant to fix the build issues.
(From OE-Core rev: e610fb7cc22447441f18a9b1bffe58aadb6aaab6)
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'documentation/ref-manual/migration.rst')
0 files changed, 0 insertions, 0 deletions