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2020-10-08ftrace: Simplify the hash calculationSteven Rostedt (VMware)1-4/+3
No need to add a check to subtract the number of bits if bits is zero after fls(). Just divide the size by two before calling it. This does give the same answer for size of 0 and 1, but that's fine. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-10-08ftrace: Use fls() to get the bits for dup_hash()Wei Yang1-2/+3
The effect here is to get the number of bits, lets use fls() to do this job. Link: https://lkml.kernel.org/r/20200831031104.23322-3-richard.weiyang@linux.alibaba.com Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-10-08tracing: Change synthetic event string format to limit printed lengthSteven Rostedt (VMware)1-1/+3
Change the format for printing synthetic field strings to limit the length of the string printed even if it's not correctly terminated. Link: https://lore.kernel.org/r/20201002210036.0200371b@oasis.local.home Link: https://lkml.kernel.org/r/b6bdb34e70d970e8026daa3503db6b8e5cdad524.1601848695.git.zanussi@kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>