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attribute filter
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Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
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Signed-off-by: <alan-jenkins@tuffmail.co.uk>
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strerror() is not threadsafe. It uses a buffer to build messages of the form
"Unknown error 387689".
syslog() provides a %m format which is equivalent to strerror(errno).
As a GNU extension, this is also accepted by printf and friends.
At least in the current implementation, it is correctly threadsafe.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
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The scans are now performed up-front at parse-time, instead of being
repeated for each event at run-time.
Cachegrind reports a 5% reduction in cpu cycles
(excluding the time spent in-kernel).
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The sg_io_v4 interface passes pointers as u64s. It turns out GCC
disapproves of us casting a u64 straight to a 32 bit pointer.
cc1: warnings being treated as errors
scsi_serial.c: In function ‘sg_err_category4’:
scsi_serial.c:159: warning: cast to pointer from integer of different size
scsi_serial.c: In function ‘scsi_dump_v4’:
scsi_serial.c:303: warning: cast to pointer from integer of different size
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