[2/3] incubator-mynewt-site git commit: Add synopsis for mutex

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Add synopsis for mutex


Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-site/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-site/commit/69ceefdd
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-site/tree/69ceefdd
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-site/diff/69ceefdd

Branch: refs/heads/master
Commit: 69ceefdd6f91a8bd340aed3ffa6a4507ba76381b
Parents: 6e7bc7a
Author: wes3 <wi...@micosa.io>
Authored: Fri Nov 20 09:11:36 2015 -0800
Committer: wes3 <wi...@micosa.io>
Committed: Fri Nov 20 09:11:36 2015 -0800

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 docs/.DS_Store         | Bin 6148 -> 0 bytes
 docs/chapter4/mutex.md |   2 +-
 2 files changed, 1 insertion(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/incubator-mynewt-site/blob/69ceefdd/docs/.DS_Store
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http://git-wip-us.apache.org/repos/asf/incubator-mynewt-site/blob/69ceefdd/docs/chapter4/mutex.md
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diff --git a/docs/chapter4/mutex.md b/docs/chapter4/mutex.md
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@@ -1,7 +1,7 @@
 # Mutex
 
 
-Insert synopsis here
+Mutex is short for "mutual exclusion"; a mutex provides mutually exclusive access to a shared resource. A mutex provides *priority inheritance* in order to prevent *priority inversion*. Priority inversion occurs when a higher priority task is waiting on a resource owned by a lower priority task. Using a mutex, the lower priority task will inherit the highest priority of any task waiting on the mutex. 
 
 
 ## Description