Commit db4df481 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Jonathan Corbet
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futex-requeue-pi.txt: standardize document format



Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- promote level for the document title;
- mark literal blocks.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent af7175bc
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+47 −46
Original line number Diff line number Diff line
================
Futex Requeue PI
----------------
================

Requeueing of tasks from a non-PI futex to a PI futex requires
special handling in order to ensure the underlying rt_mutex is never
@@ -20,7 +21,7 @@ implementation would wake the highest-priority waiter, and leave the
rest to the natural wakeup inherent in unlocking the mutex
associated with the condvar.

Consider the simplified glibc calls:
Consider the simplified glibc calls::

	/* caller must lock mutex */
	pthread_cond_wait(cond, mutex)
@@ -53,7 +54,7 @@ In order to support PI-aware pthread_condvar's, the kernel needs to
be able to requeue tasks to PI futexes.  This support implies that
upon a successful futex_wait system call, the caller would return to
user space already holding the PI futex.  The glibc implementation
would be modified as follows:
would be modified as follows::


	/* caller must lock mutex */