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| author | Volker Lendecke <vl@samba.org> | 2010-03-25 10:19:48 +0100 |
|---|---|---|
| committer | Volker Lendecke <vl@samba.org> | 2010-03-25 10:24:45 +0100 |
| commit | ea8e0d5d54b020c530e392c4edaeed43e20af303 (patch) | |
| tree | 550ea6372e166df4b7d2fc02261a23012676f7a9 /lib/tdb/common/traverse.c | |
| parent | 0a65bb57a18176a4aaa6972c025062577b124ee7 (diff) | |
| download | samba-ea8e0d5d54b020c530e392c4edaeed43e20af303.tar.gz samba-ea8e0d5d54b020c530e392c4edaeed43e20af303.tar.bz2 samba-ea8e0d5d54b020c530e392c4edaeed43e20af303.zip | |
Fix some nonempty blank lines
Diffstat (limited to 'lib/tdb/common/traverse.c')
| -rw-r--r-- | lib/tdb/common/traverse.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/tdb/common/traverse.c b/lib/tdb/common/traverse.c index d329ef4da4..baaf58ae87 100644 --- a/lib/tdb/common/traverse.c +++ b/lib/tdb/common/traverse.c @@ -6,11 +6,11 @@ Copyright (C) Andrew Tridgell 1999-2005 Copyright (C) Paul `Rusty' Russell 2000 Copyright (C) Jeremy Allison 2000-2003 - + ** NOTE! The following LGPL license applies to the tdb ** library. This does NOT imply that all of Samba is released ** under the LGPL - + This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either @@ -44,7 +44,7 @@ static tdb_off_t tdb_next_lock(struct tdb_context *tdb, struct tdb_traverse_lock common for the use of tdb with ldb, where large hashes are used. In that case we spend most of our time in tdb_brlock(), locking empty hash chains. - + To avoid this, we do an unlocked pre-check to see if the hash chain is empty before starting to look inside it. If it is empty then we can avoid that @@ -52,7 +52,7 @@ static tdb_off_t tdb_next_lock(struct tdb_context *tdb, struct tdb_traverse_lock the value we get back, as we read it without a lock, so instead we get the lock and re-fetch the value below. - + Notice that not doing this optimisation on the first hash chain is critical. We must guarantee that we have done at least one fcntl lock at the @@ -62,7 +62,7 @@ static tdb_off_t tdb_next_lock(struct tdb_context *tdb, struct tdb_traverse_lock could possibly miss those with this trick, but we could miss them anyway without this trick, so the semantics don't change. - + With a non-indexed ldb search this trick gains us a factor of around 80 in speed on a linux 2.6.x system (testing using ldbtest). |