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* [PATCH] Documentation: atomic_open called with shared lock on non-O_CREAT open
@ 2019-10-30 10:46 Jeff Layton
  2019-11-07 20:03 ` Jonathan Corbet
  0 siblings, 1 reply; 2+ messages in thread
From: Jeff Layton @ 2019-10-30 10:46 UTC (permalink / raw)
  To: corbet; +Cc: viro, linux-fsdevel, linux-doc

The exclusive lock is only held when O_CREAT is set.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 Documentation/filesystems/locking.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst
index fc3a0704553c..5057e4d9dcd1 100644
--- a/Documentation/filesystems/locking.rst
+++ b/Documentation/filesystems/locking.rst
@@ -105,7 +105,7 @@ getattr:	no
 listxattr:	no
 fiemap:		no
 update_time:	no
-atomic_open:	exclusive
+atomic_open:	shared (exclusive if O_CREAT is set in open flags)
 tmpfile:	no
 ============	=============================================
 
-- 
2.21.0


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2019-10-30 10:46 [PATCH] Documentation: atomic_open called with shared lock on non-O_CREAT open Jeff Layton
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