[tip:sched/core] sched/completions/Documentation: Fix a couple of punctuation nits

[tip-bot for John Garry <tipbot@zytor.com>]

Commit-ID:  7b6abce7e1e69b6d8dc5d40a8cb9ddaeb400427c
Gitweb:     https://git.kernel.org/tip/7b6abce7e1e69b6d8dc5d40a8cb9ddaeb400427c
Author:     John Garry <john.garry@huawei.com>
AuthorDate: Wed, 10 Oct 2018 22:56:32 +0800
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 11 Oct 2018 10:36:22 +0200

sched/completions/Documentation: Fix a couple of punctuation nits

This patch fixes a couple of punctuation nits which can make the document
more correct and readable.

Also missing "()" are added to some function references for consistency.

Signed-off-by: John Garry <john.garry@huawei.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: corbet@lwn.net
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1539183392-239389-1-git-send-email-john.garry@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/scheduler/completion.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/scheduler/completion.txt b/Documentation/scheduler/completion.txt
index 656cf803c006..108bd0f264b3 100644
--- a/Documentation/scheduler/completion.txt
+++ b/Documentation/scheduler/completion.txt
@@ -116,7 +116,7 @@ A typical usage scenario is:
 This is not implying any temporal order on wait_for_completion() and the
 call to complete() - if the call to complete() happened before the call
 to wait_for_completion() then the waiting side simply will continue
-immediately as all dependencies are satisfied if not it will block until
+immediately as all dependencies are satisfied; if not, it will block until
 completion is signaled by complete().
 
 Note that wait_for_completion() is calling spin_lock_irq()/spin_unlock_irq(),
@@ -131,7 +131,7 @@ wait_for_completion():
 The default behavior is to wait without a timeout and to mark the task as
 uninterruptible. wait_for_completion() and its variants are only safe
 in process context (as they can sleep) but not in atomic context,
-interrupt context, with disabled irqs. or preemption is disabled - see also
+interrupt context, with disabled irqs, or preemption is disabled - see also
 try_wait_for_completion() below for handling completion in atomic/interrupt
 context.
 
@@ -224,7 +224,7 @@ queue spinlock. Any such concurrent calls to complete() or complete_all()
 probably are a design bug.
 
 Signaling completion from hard-irq context is fine as it will appropriately
-lock with spin_lock_irqsave/spin_unlock_irqrestore and it will never sleep.
+lock with spin_lock_irqsave()/spin_unlock_irqrestore() and it will never sleep.
 
 
 try_wait_for_completion()/completion_done():