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| author | Randy Dunlap <rdunlap@infradead.org> | 2020-07-03 14:36:48 -0700 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2020-07-13 09:48:31 -0600 |
| commit | 7d64394b5187e225b4e578d281a36e07495738ce (patch) | |
| tree | 8ce555878e2e0bd76c87eafe21b8202680e92f29 /Documentation | |
| parent | bfbc7e5c92fec5252ad45ac26f1699a6234f8c0e (diff) | |
| download | lwn-7d64394b5187e225b4e578d281a36e07495738ce.tar.gz lwn-7d64394b5187e225b4e578d281a36e07495738ce.zip | |
Documentation: locking: mutex-design: fix duplicated word
Change the phrase "at at least" to "to at least" to be more
readable.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200703213649.30948-2-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/locking/mutex-design.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/locking/mutex-design.rst b/Documentation/locking/mutex-design.rst index 8f3e9a5141f9..78540cd7f54b 100644 --- a/Documentation/locking/mutex-design.rst +++ b/Documentation/locking/mutex-design.rst @@ -28,7 +28,7 @@ and implemented in kernel/locking/mutex.c. These locks use an atomic variable (->owner) to keep track of the lock state during its lifetime. Field owner actually contains `struct task_struct *` to the current lock owner and it is therefore NULL if not currently owned. Since task_struct pointers are aligned -at at least L1_CACHE_BYTES, low bits (3) are used to store extra state (e.g., +to at least L1_CACHE_BYTES, low bits (3) are used to store extra state (e.g., if waiter list is non-empty). In its most basic form it also includes a wait-queue and a spinlock that serializes access to it. Furthermore, CONFIG_MUTEX_SPIN_ON_OWNER=y systems use a spinner MCS lock (->osq), described |