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| author | David S. Miller <davem@davemloft.net> | 2009-12-05 15:22:26 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-05 15:22:26 -0800 |
| commit | 28b4d5cc17c20786848cdc07b7ea237a309776bb (patch) | |
| tree | bae406a4b17229dcce7c11be5073f7a67665e477 /kernel/trace/ring_buffer.c | |
| parent | d29cecda036f251aee4947f47eea0fe9ed8cc931 (diff) | |
| parent | 96fa2b508d2d3fe040cf4ef2fffb955f0a537ea1 (diff) | |
| download | linux-28b4d5cc17c20786848cdc07b7ea237a309776bb.tar.bz2 | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/net/pcmcia/fmvj18x_cs.c
drivers/net/pcmcia/nmclan_cs.c
drivers/net/pcmcia/xirc2ps_cs.c
drivers/net/wireless/ray_cs.c
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 5dd017fea6f5..a72c6e03deec 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1787,9 +1787,9 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer, static struct ring_buffer_event * rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer, unsigned long length, unsigned long tail, - struct buffer_page *commit_page, struct buffer_page *tail_page, u64 *ts) { + struct buffer_page *commit_page = cpu_buffer->commit_page; struct ring_buffer *buffer = cpu_buffer->buffer; struct buffer_page *next_page; int ret; @@ -1892,13 +1892,10 @@ static struct ring_buffer_event * __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer, unsigned type, unsigned long length, u64 *ts) { - struct buffer_page *tail_page, *commit_page; + struct buffer_page *tail_page; struct ring_buffer_event *event; unsigned long tail, write; - commit_page = cpu_buffer->commit_page; - /* we just need to protect against interrupts */ - barrier(); tail_page = cpu_buffer->tail_page; write = local_add_return(length, &tail_page->write); @@ -1909,7 +1906,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer, /* See if we shot pass the end of this buffer page */ if (write > BUF_PAGE_SIZE) return rb_move_tail(cpu_buffer, length, tail, - commit_page, tail_page, ts); + tail_page, ts); /* We reserved something on the buffer */ |