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(parent: 1d74f2a) | patch
ftrace: add debugfs entry 'failures'
authorAbhishek Sagar <sagar.abhishek@gmail.com>
Sun, 1 Jun 2008 16:17:54 +0000 (21:47 +0530)
committerIngo Molnar <mingo@elte.hu>
Tue, 10 Jun 2008 09:58:17 +0000 (11:58 +0200)
commiteb9a7bf09172f409c10ec9560adeea95bb4045f5
tree0773fb494daf7157396d6a2069fe8698bad315e5tree | snapshot
parent1d74f2a0f64b4091e5e91b55ac1b17dff93f4b59commit | diff
ftrace: add debugfs entry 'failures'

Identify functions which had their mcount call-site updates failed. This can
help us track functions which ftrace shouldn't fiddle with, and are thus not
being traced. If there is no race with any external agent which is modifying
the mcount call-site, then this file displays no entries (normal case).

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/trace/ftrace.c diff | blob | blame | history
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