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authorSven Schnelle <svens@linux.ibm.com>2026-09-09 11:29:53 +0200
committerMasami Hiramatsu (Google) <mhiramat@kernel.org>2026-09-10 08:43:35 +0900
commitd22c3e0088e85be8131f7a9283f759cdbb20726d (patch)
tree9668df2aa27b26f850d3ba5ba1287e443803675c /Documentation/ABI/testing/sysfs-block-dm
downloadlinux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.tar.gz
linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.zip
selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tcgrafted
The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
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+What: /sys/block/dm-<num>/dm/name
+Date: January 2009
+KernelVersion: 2.6.29
+Contact: dm-devel@redhat.com
+Description: Device-mapper device name.
+ Read-only string containing mapped device name.
+Users: util-linux, device-mapper udev rules
+
+What: /sys/block/dm-<num>/dm/uuid
+Date: January 2009
+KernelVersion: 2.6.29
+Contact: dm-devel@redhat.com
+Description: Device-mapper device UUID.
+ Read-only string containing DM-UUID or empty string
+ if DM-UUID is not set.
+Users: util-linux, device-mapper udev rules
+
+What: /sys/block/dm-<num>/dm/suspended
+Date: June 2009
+KernelVersion: 2.6.31
+Contact: dm-devel@redhat.com
+Description: Device-mapper device suspend state.
+ Contains the value 1 while the device is suspended.
+ Otherwise it contains 0. Read-only attribute.
+Users: util-linux, device-mapper udev rules
+
+What: /sys/block/dm-<num>/dm/rq_based_seq_io_merge_deadline
+Date: March 2015
+KernelVersion: 4.1
+Contact: dm-devel@redhat.com
+Description: Allow control over how long a request that is a
+ reasonable merge candidate can be queued on the request
+ queue. The resolution of this deadline is in
+ microseconds (ranging from 1 to 100000 usecs).
+ Setting this attribute to 0 (the default) will disable
+ request-based DM's merge heuristic and associated extra
+ accounting. This attribute is not applicable to
+ bio-based DM devices so it will only ever report 0 for
+ them.
+
+What: /sys/block/dm-<num>/dm/use_blk_mq
+Date: March 2015
+KernelVersion: 4.1
+Contact: dm-devel@redhat.com
+Description: Request-based Device-mapper blk-mq I/O path mode.
+ Contains the value 1 if the device is using blk-mq.
+ Otherwise it contains 0. Read-only attribute.