Messages in this thread Patch in this message | | | Date | Wed, 04 Mar 2009 22:25:35 -0500 | From | Steven Rostedt <> | Subject | [PATCH 3/7] tracing: fix seq read from trace files |
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From: Steven Rostedt <srostedt@redhat.com>
The buffer used by trace_seq was updated incorrectly. Instead of consuming what was actually read, it consumed the rest of the buffer on reads.
Signed-off-by: Steven Rostedt <srostedt@redhat.com> --- kernel/trace/trace.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 57155dc..2e53e6f 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -361,7 +361,7 @@ ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, size_t cnt) cnt -= ret; - s->readpos += len; + s->readpos += cnt; return cnt; } @@ -380,7 +380,7 @@ ssize_t trace_seq_to_buffer(struct trace_seq *s, void *buf, size_t cnt) if (!ret) return -EFAULT; - s->readpos += len; + s->readpos += cnt; return cnt; } -- 1.6.1.3 --
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