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author | James Morris | 2018-12-17 20:24:28 +0100 |
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committer | James Morris | 2018-12-17 20:24:28 +0100 |
commit | 8bd8ea195f6d135a8d85201116314eb5237ad7e7 (patch) | |
tree | 3ef99e468f0b4b13cc11002aa60c4451e326191b /arch/parisc/kernel/ftrace.c | |
parent | security: fs: make inode explicitly non-modular (diff) | |
parent | Linux 4.20-rc7 (diff) | |
download | kernel-qcow2-linux-8bd8ea195f6d135a8d85201116314eb5237ad7e7.tar.gz kernel-qcow2-linux-8bd8ea195f6d135a8d85201116314eb5237ad7e7.tar.xz kernel-qcow2-linux-8bd8ea195f6d135a8d85201116314eb5237ad7e7.zip |
Merge tag 'v4.20-rc7' into next-general
Sync with Linux 4.20-rc7, to pick up: Revert "ovl: relax permission checking on underlying layers"
Diffstat (limited to 'arch/parisc/kernel/ftrace.c')
-rw-r--r-- | arch/parisc/kernel/ftrace.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c index 6fa8535d3cce..e46a4157a894 100644 --- a/arch/parisc/kernel/ftrace.c +++ b/arch/parisc/kernel/ftrace.c @@ -30,7 +30,6 @@ static void __hot prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) { unsigned long old; - struct ftrace_graph_ent trace; extern int parisc_return_to_handler; if (unlikely(ftrace_graph_is_dead())) @@ -41,19 +40,9 @@ static void __hot prepare_ftrace_return(unsigned long *parent, old = *parent; - trace.func = self_addr; - trace.depth = current->curr_ret_stack + 1; - - /* Only trace if the calling function expects to */ - if (!ftrace_graph_entry(&trace)) - return; - - if (ftrace_push_return_trace(old, self_addr, &trace.depth, - 0, NULL) == -EBUSY) - return; - - /* activate parisc_return_to_handler() as return point */ - *parent = (unsigned long) &parisc_return_to_handler; + if (!function_graph_enter(old, self_addr, 0, NULL)) + /* activate parisc_return_to_handler() as return point */ + *parent = (unsigned long) &parisc_return_to_handler; } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ |