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lttng-modules: Fix 3.14 bio tracepoints

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The mainline 3.14 commit 'block: Astract out bvec iterator' broke the
lttng-modules tracepoints.  Fix them here.

(From OE-Core rev: c11b29ff4f24af0445c3c6a694b8dc2037dcd7e4)

Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Tom Zanussi
2014-03-06 22:26:20 -06:00
committed by Richard Purdie
parent 7a97440737
commit b465c0cb32
2 changed files with 158 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-kernel/lttng/lttng-modules/bio-bvec-iter.patch
+156
View File
@@ -0,0 +1,156 @@
Upstream-Status: Pending
In 3.14, bi_sector and bi_size were moved into an iterator, thus
breaking any tracepoints that still expect them in the bio. Fix up
the lttng-module tracepoints to use the new scheme when the kernel
version is >= 3.14.
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
diff --git a/instrumentation/events/lttng-module/block.h b/instrumentation/events/lttng-module/block.h
index f3b8bff..0a61543 100644
--- a/instrumentation/events/lttng-module/block.h
+++ b/instrumentation/events/lttng-module/block.h
@@ -341,9 +341,15 @@ TRACE_EVENT(block_bio_bounce,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev ?
bio->bi_bdev->bd_dev : 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(nr_sector, bio->bi_iter.bi_size >> 9)
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(nr_sector, bio->bi_size >> 9)
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_memcpy(comm, current->comm, TASK_COMM_LEN)
),
@@ -385,14 +391,24 @@ TRACE_EVENT(block_bio_complete,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev->bd_dev)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(nr_sector, bio->bi_iter.bi_size >> 9)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(nr_sector, bio->bi_size >> 9)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
+
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
tp_assign(error, error)
#else
tp_assign(error, 0)
#endif
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
),
TP_printk("%d,%d %s %llu + %u [%d]",
@@ -419,9 +435,15 @@ DECLARE_EVENT_CLASS(block_bio_merge,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev->bd_dev)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(nr_sector, bio->bi_iter.bi_size >> 9)
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(nr_sector, bio->bi_size >> 9)
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_memcpy(comm, current->comm, TASK_COMM_LEN)
),
@@ -485,9 +507,15 @@ TRACE_EVENT(block_bio_queue,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev->bd_dev)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(nr_sector, bio->bi_iter.bi_size >> 9)
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(nr_sector, bio->bi_size >> 9)
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_memcpy(comm, current->comm, TASK_COMM_LEN)
),
@@ -513,9 +541,15 @@ DECLARE_EVENT_CLASS(block_bio,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(nr_sector, bio->bi_iter.bi_size >> 9)
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(nr_sector, bio->bi_size >> 9)
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_memcpy(comm, current->comm, TASK_COMM_LEN)
),
@@ -587,10 +621,17 @@ DECLARE_EVENT_CLASS(block_get_rq,
TP_fast_assign(
tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio ? bio->bi_iter.bi_sector : 0)
+ tp_assign(nr_sector, bio ? bio->bi_iter.bi_size >> 9 : 0)
+ blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0,
+ bio ? bio->bi_iter.bi_size >> 9 : 0)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio ? bio->bi_sector : 0)
tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0)
blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0,
bio ? bio->bi_size >> 9 : 0)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_memcpy(comm, current->comm, TASK_COMM_LEN)
),
@@ -759,9 +800,15 @@ TRACE_EVENT(block_split,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev->bd_dev)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(new_sector, new_sector)
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(new_sector, new_sector)
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_memcpy(comm, current->comm, TASK_COMM_LEN)
),
@@ -805,11 +852,19 @@ TRACE_EVENT(block_remap,
TP_fast_assign(
tp_assign(dev, bio->bi_bdev->bd_dev)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
+ tp_assign(sector, bio->bi_iter.bi_sector)
+ tp_assign(nr_sector, bio->bi_iter.bi_size >> 9)
+ tp_assign(old_dev, dev)
+ tp_assign(old_sector, from)
+ blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
tp_assign(sector, bio->bi_sector)
tp_assign(nr_sector, bio->bi_size >> 9)
tp_assign(old_dev, dev)
tp_assign(old_sector, from)
blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
),
TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
meta/recipes-kernel/lttng/lttng-modules_2.4.0.bb
+2 -1
View File
@@ -17,7 +17,8 @@ PV = "2.4.0"
COMPATIBLE_HOST = '(x86_64|i.86|powerpc|aarch64|mips).*-linux'
SRC_URI = "git://git.lttng.org/lttng-modules.git;branch=stable-2.4 \
file://lttng-modules-replace-KERNELDIR-with-KERNEL_SRC.patch"
file://lttng-modules-replace-KERNELDIR-with-KERNEL_SRC.patch \
file://bio-bvec-iter.patch"
export INSTALL_MOD_DIR="kernel/lttng-modules"
export KERNEL_SRC="${STAGING_KERNEL_DIR}"