bwlp/qemu.git - Experimental fork of QEMU with video encoding patches

	Commit message (Collapse)	Author	Age	Files	Lines
*	seqlock: use atomic writes for the sequence	Paolo Bonzini	2016-10-04	1	-2/+2
\| \| \| \| \| \| \| \| \| \| \| \|	There is a data race if the sequence is written concurrently to the read. In C11 this has undefined behavior. Use atomic_set; the read side is already using atomic_read. Reported-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20160930213106.20186-6-alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
*	Clean up decorations and whitespace around header guards	Markus Armbruster	2016-07-12	1	-1/+2
\| \| \| \| \| \| \|	Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
*	Use #include "..." for our own headers, <...> for others	Markus Armbruster	2016-07-12	1	-2/+2
\| \| \| \| \| \| \| \| \| \| \| \|	Tracked down with an ugly, brittle and probably buggy Perl script. Also move includes converted to <...> up so they get included before ours where that's obviously okay. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Eric Blake <eblake@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
*	seqlock: rename write_lock/unlock to write_begin/end	Emilio G. Cota	2016-06-12	1	-2/+2
\| \| \| \| \| \| \| \| \| \| \| \|	It is a more appropriate name, now that the mutex embedded in the seqlock is gone. Reviewed-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1465412133-3029-4-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
*	seqlock: remove optional mutex	Emilio G. Cota	2016-06-12	1	-9/+1
\| \| \| \| \| \| \| \| \| \| \| \|	This option is unused; besides, it bloats the struct when not needed. Let's just let writers define their own locks elsewhere. Reviewed-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1465412133-3029-3-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
*	seqlock: read sequence number atomically	Emilio G. Cota	2015-09-07	1	-3/+3
\| \| \| \| \| \| \| \| \|	With this change we make sure that the compiler will not optimise the read of the sequence number in any way. Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1440375847-17603-8-git-send-email-cota@braap.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
*	seqlock: add missing 'inline' to seqlock_read_retry	Emilio G. Cota	2015-09-07	1	-1/+1
\| \| \| \| \| \| \|	Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1440375847-17603-7-git-send-email-cota@braap.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
*	seqlock: introduce read-write seqlock	Paolo Bonzini	2013-10-17	1	-0/+72
	Seqlock implementation for QEMU. Usage idiom reader: do { start = seqlock_read_begin(&sl); ... } while (seqlock_read_retry(&sl, start)); writer: seqlock_write_lock(&sl); ... seqlock_write_unlock(&sl); initialization: seqlock_init(QemuSeqLock sl, QemuMutex mutex) mutex could be NULL if the caller will provide its own protection for concurrent write sides (typically using the BQL). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>