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author | rdivacky <rdivacky@FreeBSD.org> | 2009-11-09 20:29:10 +0000 |
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committer | rdivacky <rdivacky@FreeBSD.org> | 2009-11-09 20:29:10 +0000 |
commit | f446f9def72f6f270f8c63127857deb322120c23 (patch) | |
tree | f953f2131a083f2e622b5ad2d6a2edc3b54f19bf /share/zoneinfo | |
parent | ab44b532fc14160602cb4a00f5a305b6f8750250 (diff) | |
download | FreeBSD-src-f446f9def72f6f270f8c63127857deb322120c23.zip FreeBSD-src-f446f9def72f6f270f8c63127857deb322120c23.tar.gz |
Make isa_dma functions MPSAFE by introducing its own private lock. These
functions are selfcontained (ie. they touch only isa_dma.c static variables
and hardware) so a private lock is sufficient to prevent races. This changes
only i386/amd64 while there are also isa_dma functions for ia64/sparc64.
Sparc64 are ones empty stubs and ia64 ones are unused as ia64 does not
have isa (says marcel).
This patch removes explicit locking of Giant from a few drivers (there
are some that requires this but lack ones - this patch fixes this) and
also removes the need for implicit locking of Giant from attach routines
where it's provided by newbus.
Approved by: ed (mentor, implicit)
Reviewed by: jhb, attilio (glanced by)
Tested by: Giovanni Trematerra <giovanni.trematerra gmail com>
IA64 clue: marcel
Diffstat (limited to 'share/zoneinfo')
0 files changed, 0 insertions, 0 deletions