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64f3e247df
Newer kernels replace TC_BARRIER with TC_FLUSH. Ensure trace-cmd can build regardless of the linux-kernel-headers version. This is intended as a stop-gap to get the builds working again. A proper fix will need to be discussed with the trace-cmd community. RP: Tweaked the SRC_URI to remove unnecessary path and added PR bump (From OE-Core rev: 869372e7e11b9ba38fcfb721c460404c6f31db95) Signed-off-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
30 lines
915 B
Diff
30 lines
915 B
Diff
trace-cmd: Add blktrace_api compatibility for TC_BARRIER
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Newer kernels replace TC_BARRIER with TC_FLUSH. Ensure trace-cmd
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can build regardless of the linux-kernel-headers version.
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Upstream-Status: Innapropriate [Stop gap]
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Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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diff --git a/plugin_blk.c b/plugin_blk.c
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index 9327b17..c8e5e1c 100644
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--- a/plugin_blk.c
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+++ b/plugin_blk.c
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@@ -44,6 +44,15 @@ struct blk_data {
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unsigned short pdu_len;
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};
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+/*
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+ * Newer kernels don't define BLK_TC_BARRIER and have replaced it with
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+ * BLK_TC_FLUSH. In this case, define it here and report FLUSHES as BARRIERS as
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+ * a workaround, as described in:
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+ * http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=c09c47caedc9854d59378d6e34c989e51cfdd2b4
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+ */
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+#ifndef BLK_TC_BARRIER
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+#define BLK_TC_BARRIER 1<<2
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+#endif
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static void fill_rwbs(char *rwbs, int action, unsigned int bytes)
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{
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int i = 0;
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