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author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2008-10-28 10:51:49 +0800 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-11-03 10:28:30 +0100 |
commit | 19dba33c43a2f0f2aa727ae075ec3b11330775ef (patch) | |
tree | a1e60ef0e892ad7d87938b1caeeadc605e2d487a /COPYING | |
parent | 45beca08dd8b6d6a65c5ffd730af2eac7a2c7a03 (diff) | |
download | op-kernel-dev-19dba33c43a2f0f2aa727ae075ec3b11330775ef.zip op-kernel-dev-19dba33c43a2f0f2aa727ae075ec3b11330775ef.tar.gz |
tracepoint: simplification for tracepoints using RCU
Impact: simplify implementation
Now, unused memory is handled by struct tp_probes.
old code use these three field to handle unused memory.
struct tracepoint_entry {
...
struct rcu_head rcu;
void *oldptr;
unsigned char rcu_pending:1;
...
};
in this way, unused memory is handled by struct tracepoint_entry.
it bring reenter bug(it was fixed) and tracepoint.c is filled
full of ".*rcu.*" code statements. this patch removes all these.
and:
rcu_barrier_sched() is removed.
Do not need regain tracepoints_mutex after tracepoint_update_probes()
several little cleanup.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions