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| author | Chris Wright <chrisw@sous-sol.org> | 2006-09-26 06:32:23 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 15:48:55 (GMT) |
| commit | 027a8c7e6067a1bcdef6775d1b1c08729dfbae51 (patch) | |
| tree | 8c791bb8820d6c0734aded634a045369dd3347cc /block/ll_rw_blk.c | |
| parent | 05f4a3ec94281347e05c81eafefcfe5ea545c94c (diff) | |
| download | linux-fsl-qoriq-027a8c7e6067a1bcdef6775d1b1c08729dfbae51.tar.xz | |
[PATCH] x86: implement always-locked bit ops, for memory shared with an SMP hypervisor
Add "always lock'd" implementations of set_bit, clear_bit and change_bit and
the corresponding test_and_ functions. Also add "always lock'd"
implementation of cmpxchg. These give guaranteed strong synchronisation and
are required for non-SMP kernels running on an SMP hypervisor.
Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'block/ll_rw_blk.c')
0 files changed, 0 insertions, 0 deletions