Commit e299bcd4 authored by Nikolay Borisov's avatar Nikolay Borisov Committed by Andrii Nakryiko
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selftests/bpf: Fix vfs_link kprobe definition 



Since commit 6521f891 ("namei: prepare for idmapped mounts")
vfs_link's prototype was changed, the kprobe definition in
profiler selftest in turn wasn't updated. The result is that all
argument after the first are now stored in different registers. This
means that self-test has been broken ever since. Fix it by updating the
kprobe definition accordingly.

Signed-off-by: default avatarNikolay Borisov <nborisov@suse.com>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220331140949.1410056-1-nborisov@suse.com
parent 185da3da

tools/testing/selftests/bpf/progs/profiler.inc.h

+3 −2
Original line number Diff line number Diff line
@@ -826,8 +826,9 @@ int kprobe_ret__do_filp_open(struct pt_regs* ctx) 


SEC("kprobe/vfs_link")

int BPF_KPROBE(kprobe__vfs_link,

	       struct dentry* old_dentry, struct inode* dir,

	       struct dentry* new_dentry, struct inode** delegated_inode)

	       struct dentry* old_dentry, struct user_namespace *mnt_userns,

	       struct inode* dir, struct dentry* new_dentry,

	       struct inode** delegated_inode)

{

	struct bpf_func_stats_ctx stats_ctx;

	bpf_stats_enter(&stats_ctx, profiler_bpf_vfs_link);