334b15e6e0
ck_bytelock: Acquire semantics on read.
12 years ago
33a9222923
legal: Update Copyright statements.
12 years ago
d29ac5afdb
ck_bytelock: Fix downgrade path from writer to reader.
...
An off-by-one was introduced in downgrade path from writer.
This can cause deadlock if a writer downgrades from a write lock.
Pointed out by Jeffrey Birnbaum <jmb...@...>.
12 years ago
5df8882840
ck_bytelock: Switch to full semantics on unlock.
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RW semantics may be used for shared write-side.
12 years ago
6be03bb450
ck_bytelock: Remove unnecessary load barrier on unslotted read acquisition.
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Signed-off-by: Samy Al Bahra <sbahra@repnop.org>
12 years ago
e78bbe9ae6
ck_{rw,byte,br}lock: Serialize final loads with respect to read.
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I will switch to a SPARC-style barrier interface.
12 years ago
d72ca391f6
ck_bytelock: Switch to RMO model.
12 years ago
fbb88a519c
ck_bytelock: read_lock must serialize all load/store before checking owner field.
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Thanks to Andrew Schorr for reporting the unit test failure.
12 years ago
7dd549418a
ck_bytelock: Remove backoff behavior by default.
13 years ago
3cf265cba0
all: Strip trailing whitespaces.
13 years ago
706fd07de7
legal: Update Copyright statements.
13 years ago
66ebe1a874
Drop usage of CK_CC_PACKED, prefer natural alignment.
...
CK_CC_PACKED will drop structures to one-byte alignment in certain
cases. Obviously, this will mean bad performance on most architectures.
Thanks to Matt Johnson from https://rigel.crhc.illinois.edu/ for
reporting this problem.
14 years ago
cbd30b2206
Initial import.
14 years ago
Samy Al Bahra
Samy Al Bahra
Samy Al Bahra