From 3dce224648df442f7e574297b9cbb47f77922fca Mon Sep 17 00:00:00 2001 From: Jeremy Allison Date: Thu, 21 Jul 2016 16:24:59 -0700 Subject: [PATCH] WHATSNEW. Add text for Open File Description (OFD) locks. Signed-off-by: Jeremy Allison --- WHATSNEW.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/WHATSNEW.txt b/WHATSNEW.txt index 2cda375..7d2405b 100644 --- a/WHATSNEW.txt +++ b/WHATSNEW.txt @@ -135,6 +135,17 @@ by SMB 1 oplocks. This feature was disabled in previous releases, but the SMB2 leasing code is now considered mature and stable enough to be enabled by default. +Open File Description (OFD) Locks +--------------------------------- + +On systems that support them (currently only Linux), the fileserver now +uses Open File Description (OFD) locks instead of POSIX locks to implement +client byte range locks. As these locks are associated with a specific +file descriptor on a file this allows more efficient use when multiple +descriptors having file locks are opened onto the same file. An internal +tunable "smbd:force process locks = true" may be used to turn off OFD +locks if there appear to be problems with them. + REMOVED FEATURES ================ -- 2.8.0.rc3.226.g39d4020