From: Jeremy Allison Date: Thu, 21 Jul 2016 23:24:59 +0000 (-0700) Subject: WHATSNEW. Add text for Open File Description (OFD) locks. X-Git-Tag: tdb-1.3.10~213 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c8f2bb12ebe480a1a0718dbcaa2b271428657b14;p=thirdparty%2Fsamba.git WHATSNEW. Add text for Open File Description (OFD) locks. Signed-off-by: Jeremy Allison Reviewed-by: Ralph Boehme Autobuild-User(master): Ralph Böhme Autobuild-Date(master): Fri Jul 22 14:13:52 CEST 2016 on sn-devel-144 --- diff --git a/WHATSNEW.txt b/WHATSNEW.txt index 2cda3750ebc..7d2405b6058 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 ================