diff options
| author | Jesper Dangaard Brouer <hawk@comx.dk> | 2009-09-23 22:57:29 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-24 14:21:05 (GMT) |
| commit | 458e5ff13e1bed050990d97e9aa55bcdafc951a7 (patch) | |
| tree | 521d837beabe5265f070351a8ea42d48408ec5d7 /block/ioctl.c | |
| parent | dd8ef1db87a486577b3a76e6ad45df52e12d0145 (diff) | |
| download | linux-fsl-qoriq-458e5ff13e1bed050990d97e9aa55bcdafc951a7.tar.xz | |
edac: core: remove completion-wait for complete with rcu_barrier
Module edac_core.ko uses call_rcu() callbacks in edac_device.c, edac_mc.c
and edac_pci.c.
They all use a wait_for_completion() scheme, but this scheme it not 100%
safe on multiple CPUs. See the _rcu_barrier() implementation which
explains why extra precausion is needed.
The patch adds a comment about rcu_barrier() and as a precausion calls
rcu_barrier(). A maintainer needs to look at removing the
wait_for_completion code.
[dougthompson@xmission.com: remove the wait_for_completion code]
Signed-off-by Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block/ioctl.c')
0 files changed, 0 insertions, 0 deletions