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8659 static dtrace probes unavailable on non-GPL modules

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ZFS tracing efforts are hampered by the inability to access zfs static
probes(probes using DTRACE_PROBE macros). The probes are available via
tracepoints for GPL modules only.  The build could be modified to
generate a function for each unique DTRACE_PROBE invocation. These could
be then accessed via kprobes.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Signed-off-by: Brad Lewis <brad.lewis@delphix.com>
Closes #8659 
Closes #8663
This commit is contained in:
Brad Lewis
2019-07-08 12:20:53 -06:00
committed by Brian Behlendorf
parent 1086f54219
commit cb70964221
18 changed files with 303 additions and 57 deletions
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module/zfs/rrwlock.c
+1
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@@ -28,6 +28,7 @@
#include <sys/refcount.h>
#include <sys/rrwlock.h>
#include <sys/trace_rrwlock.h>
/*
* This file contains the implementation of a re-entrant read