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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-05-17 06:46:19 -0300
committerJonathan Corbet <corbet@lwn.net>2017-07-14 13:58:03 -0600
commit773810d30e7d81b8308fea272ed2ec3d832a6018 (patch)
tree85d726a023baf520515cba4a8d8dd098e22ce113 /Documentation
parentce3a966931a45065306b9a1840f22bfccbffe590 (diff)
downloadlinux-773810d30e7d81b8308fea272ed2ec3d832a6018.tar.bz2
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: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/robust-futexes.txt12
1 files changed, 8 insertions, 4 deletions
diff --git a/Documentation/robust-futexes.txt b/Documentation/robust-futexes.txt
index 61c22d608759..6c42c75103eb 100644
--- a/Documentation/robust-futexes.txt
+++ b/Documentation/robust-futexes.txt
@@ -1,4 +1,8 @@
-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