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authorSteven Rostedt <srostedt@redhat.com>2011-04-26 16:11:03 -0400
committerSteven Rostedt <rostedt@goodmis.org>2011-04-29 22:53:08 -0400
commit996e87be7f537fb34638875dd37083166c733425 (patch)
tree0d961a4870b39450470b117cde45c3c2c1931959 /kernel/trace
parentd2c8c3eafbf715306ec891e7ca52d3d999acbe31 (diff)
ftrace: Move record update for normal and modules into a separate function
The updating of a function record is moved to a single function. This will allow us to add specific changes in one location for both modules and kernel functions. Later patches will determine if the function record itself needs to be updated (which enables the mcount caller), or just the ftrace_ops needs the update. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ftrace.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 9abaaf46f212..5b758ea344ce 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1743,6 +1743,15 @@ static int ftrace_match(char *str, char *regex, int len, int type)
1743 return matched; 1743 return matched;
1744} 1744}
1745 1745
1746static void
1747update_record(struct dyn_ftrace *rec, unsigned long flag, int not)
1748{
1749 if (not)
1750 rec->flags &= ~flag;
1751 else
1752 rec->flags |= flag;
1753}
1754
1746static int 1755static int
1747ftrace_match_record(struct dyn_ftrace *rec, char *regex, int len, int type) 1756ftrace_match_record(struct dyn_ftrace *rec, char *regex, int len, int type)
1748{ 1757{
@@ -1772,10 +1781,7 @@ static int ftrace_match_records(char *buff, int len, int enable)
1772 do_for_each_ftrace_rec(pg, rec) { 1781 do_for_each_ftrace_rec(pg, rec) {
1773 1782
1774 if (ftrace_match_record(rec, search, search_len, type)) { 1783 if (ftrace_match_record(rec, search, search_len, type)) {
1775 if (not) 1784 update_record(rec, flag, not);
1776 rec->flags &= ~flag;
1777 else
1778 rec->flags |= flag;
1779 found = 1; 1785 found = 1;
1780 } 1786 }
1781 /* 1787 /*
@@ -1846,10 +1852,7 @@ static int ftrace_match_module_records(char *buff, char *mod, int enable)
1846 1852
1847 if (ftrace_match_module_record(rec, mod, 1853 if (ftrace_match_module_record(rec, mod,
1848 search, search_len, type)) { 1854 search, search_len, type)) {
1849 if (not) 1855 update_record(rec, flag, not);
1850 rec->flags &= ~flag;
1851 else
1852 rec->flags |= flag;
1853 found = 1; 1856 found = 1;
1854 } 1857 }
1855 if (enable && (rec->flags & FTRACE_FL_FILTER)) 1858 if (enable && (rec->flags & FTRACE_FL_FILTER))