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Commit 773810d3 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Jonathan Corbet
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robust-futexes.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:

- add a title for the document;
- mark literal blocks;

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent ce3a9669

Documentation/robust-futexes.txt

+8 −4
Original line number Diff line number Diff line 
Started by: Ingo Molnar <mingo@redhat.com>

========================================

A description of what robust futexes are

========================================



:Started by: Ingo Molnar <mingo@redhat.com>



Background

----------
@@ -163,7 +167,7 @@ Implementation details 
----------------------



The patch adds two new syscalls: one to register the userspace list, and

one to query the registered list pointer:

one to query the registered list pointer::



 asmlinkage long

 sys_set_robust_list(struct robust_list_head __user *head,
@@ -185,7 +189,7 @@ straightforward. The kernel doesn't have any internal distinction between 
robust and normal futexes.



If a futex is found to be held at exit time, the kernel sets the

following bit of the futex word:

following bit of the futex word::



	#define FUTEX_OWNER_DIED        0x40000000
@@ -193,7 +197,7 @@ and wakes up the next futex waiter (if any). User-space does the rest of 
the cleanup.



Otherwise, robust futexes are acquired by glibc by putting the TID into

the futex field atomically. Waiters set the FUTEX_WAITERS bit:

the futex field atomically. Waiters set the FUTEX_WAITERS bit::



	#define FUTEX_WAITERS           0x80000000