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ftrace: Replace record newlist with record page list

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As new functions come in to be initalized from mcount to nop,
they are done by groups of pages. Whether it is the core kernel
or a module. There's no need to keep track of these on a per record
basis.

At startup, and as any module is loaded, the functions to be
traced are stored in a group of pages and added to the function
list at the end. We just need to keep a pointer to the first
page of the list that was added, and use that to know where to
start on the list for initializing functions.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt 2011-12-16 16:30:31 -05:00 • committed by Steven Rostedt
parent a790087554
commit 85ae32ae01
2 changed files with 38 additions and 35 deletions
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5
include/linux/ftrace.h
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@ -173,10 +173,7 @@ struct dyn_ftrace {
unsigned long ip; /* address of mcount call-site */
struct dyn_ftrace *freelist;
};
union {
unsigned long flags;
struct dyn_ftrace *newlist;
};
unsigned long flags;
struct dyn_arch_ftrace arch;
};