On 3/13/15 4:24 AM, He Kuang wrote:
Hi, Alexei
I've followed up your bpf version. In bpf filter, sometimes we need to
get 'pid' and some other context informations to decide whether to
filter or not.
For example, to trace a vfs read procedure, we can insert bpf program to
'__vfs_read(struct
Hi, Alexei
I've followed up your bpf version. In bpf filter, sometimes we need to
get 'pid' and some other context informations to decide whether to
filter or not.
For example, to trace a vfs read procedure, we can insert bpf program to
'__vfs_read(struct file *file, char __user *buf ...)',
Hi, Alexei
I've followed up your bpf version. In bpf filter, sometimes we need to
get 'pid' and some other context informations to decide whether to
filter or not.
For example, to trace a vfs read procedure, we can insert bpf program to
'__vfs_read(struct file *file, char __user *buf ...)',
On 3/13/15 4:24 AM, He Kuang wrote:
Hi, Alexei
I've followed up your bpf version. In bpf filter, sometimes we need to
get 'pid' and some other context informations to decide whether to
filter or not.
For example, to trace a vfs read procedure, we can insert bpf program to
'__vfs_read(struct
bpf_ktime_get_ns() is used by programs to compue time delta between events
or as a timestamp
Signed-off-by: Alexei Starovoitov
---
include/uapi/linux/bpf.h |1 +
kernel/trace/bpf_trace.c | 11 +++
2 files changed, 12 insertions(+)
diff --git a/include/uapi/linux/bpf.h
bpf_ktime_get_ns() is used by programs to compue time delta between events
or as a timestamp
Signed-off-by: Alexei Starovoitov a...@plumgrid.com
---
include/uapi/linux/bpf.h |1 +
kernel/trace/bpf_trace.c | 11 +++
2 files changed, 12 insertions(+)
diff --git
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