summary refs log tree commit diff
path: root/fs/ext4
diff options
context:
space:
mode:
authorJason Wessel <jason.wessel@windriver.com>2010-05-21 08:46:00 -0500
committerJason Wessel <jason.wessel@windriver.com>2010-10-22 15:34:13 -0500
commit495363d380b4f4745bd8677912688654afc44020 (patch)
tree647032c22f9e77f91578dcae864776849dbcbfa8 /fs/ext4
parentdfee3a7b92208b30f77876068aece9ea571270c2 (diff)
downloadlinux-495363d380b4f4745bd8677912688654afc44020.tar.gz
kdb,debug_core: adjust master cpu switch logic against new debug_core locking
The kdb shell needs to enforce switching back to the original CPU that
took the exception before restoring normal kernel execution.  Resuming
from a different CPU than what took the original exception will cause
problems with spin locks that are freed from the a different processor
than had taken the lock.

The special logic in dbg_cpu_switch() can go away entirely with
because the state of what cpus want to be masters or slaves will
remain unchanged between entry and exit of the debug_core exception
context.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to 'fs/ext4')
0 files changed, 0 insertions, 0 deletions