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authorDaniel Borkmann <daniel@iogearbox.net>2015-07-30 12:42:49 +0200
committerDavid S. Miller <davem@davemloft.net>2015-07-30 11:13:21 -0700
commitb13138ef72178a13f34e33883f9f093f9e3b1bda (patch)
tree2de35c3471c854eb4e79fc504d19cd3dc688c896 /include/linux/filter.h
parent485d6511e71e5810f07eec29b884c98021e67911 (diff)
bpf: also show process name/pid in bpf_jit_dump
It can be useful for testing to see the actual process/pid who is loading a given filter. I was running some BPF test program and noticed unusual filter loads from time to time, triggered by some other application in the background. bpf_jit_disasm is still working after this change. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/filter.h')
-rw-r--r--include/linux/filter.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 6b025491120d..fa2cab985e57 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -12,6 +12,7 @@
#include <linux/linkage.h>
#include <linux/printk.h>
#include <linux/workqueue.h>
+#include <linux/sched.h>
#include <asm/cacheflush.h>
@@ -438,8 +439,9 @@ void bpf_jit_free(struct bpf_prog *fp);
static inline void bpf_jit_dump(unsigned int flen, unsigned int proglen,
u32 pass, void *image)
{
- pr_err("flen=%u proglen=%u pass=%u image=%pK\n",
- flen, proglen, pass, image);
+ pr_err("flen=%u proglen=%u pass=%u image=%pK from=%s pid=%d\n", flen,
+ proglen, pass, image, current->comm, task_pid_nr(current));
+
if (image)
print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_OFFSET,
16, 1, image, proglen, false);