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authorJeremy Allison <jra@samba.org>2016-07-21 16:24:59 -0700
committerRalph Boehme <slow@samba.org>2016-07-22 14:13:51 +0200
commitc8f2bb12ebe480a1a0718dbcaa2b271428657b14 (patch)
tree0a87ebf5fdce01831968ebfa7fcc989cc800e44f /WHATSNEW.txt
parent95e3d185ba88e48fa7b613b54587557dc6452a71 (diff)
downloadsamba-c8f2bb12ebe480a1a0718dbcaa2b271428657b14.tar.gz
WHATSNEW. Add text for Open File Description (OFD) locks.
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org> Autobuild-User(master): Ralph Böhme <slow@samba.org> Autobuild-Date(master): Fri Jul 22 14:13:52 CEST 2016 on sn-devel-144
Diffstat (limited to 'WHATSNEW.txt')
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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
================