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The sample program is run like: ./samples/watch_queue/watch_test and watches "/" for mount changes and the current session keyring for key changes: # keyctl add user a a @s 1035096409 # keyctl unlink 1035096409 @s producing: # ./watch_test read() = 16 NOTIFY[000]: ty=000001 sy=02 i=00000110 KEY 2ffc2e5d change=2[linked] aux=1035096409 read() = 16 NOTIFY[000]: ty=000001 sy=02 i=00000110 KEY 2ffc2e5d change=3[unlinked] aux=1035096409 Other events may be produced, such as with a failing disk: read() = 22 NOTIFY[000]: ty=000003 sy=02 i=00000416 USB 3-7.7 dev-reset e=0 r=0 read() = 24 NOTIFY[000]: ty=000002 sy=06 i=00000418 BLOCK 00800050 e=6[critical medium] s=64000ef8 This corresponds to: blk_update_request: critical medium error, dev sdf, sector 1677725432 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 in dmesg. Signed-off-by: David Howells <dhowells@redhat.com>
28 lines
1.1 KiB
Makefile
28 lines
1.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Makefile for Linux samples code
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OBJECT_FILES_NON_STANDARD := y
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obj-$(CONFIG_SAMPLE_ANDROID_BINDERFS) += binderfs/
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obj-$(CONFIG_SAMPLE_CONFIGFS) += configfs/
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obj-$(CONFIG_SAMPLE_CONNECTOR) += connector/
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subdir-$(CONFIG_SAMPLE_HIDRAW) += hidraw
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obj-$(CONFIG_SAMPLE_HW_BREAKPOINT) += hw_breakpoint/
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obj-$(CONFIG_SAMPLE_KDB) += kdb/
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obj-$(CONFIG_SAMPLE_KFIFO) += kfifo/
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obj-$(CONFIG_SAMPLE_KOBJECT) += kobject/
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obj-$(CONFIG_SAMPLE_KPROBES) += kprobes/
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obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch/
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subdir-$(CONFIG_SAMPLE_PIDFD) += pidfd
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obj-$(CONFIG_SAMPLE_QMI_CLIENT) += qmi/
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obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg/
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subdir-$(CONFIG_SAMPLE_SECCOMP) += seccomp
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obj-$(CONFIG_SAMPLE_TRACE_EVENTS) += trace_events/
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obj-$(CONFIG_SAMPLE_TRACE_PRINTK) += trace_printk/
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obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace/
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obj-$(CONFIG_SAMPLE_TRACE_ARRAY) += ftrace/
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obj-$(CONFIG_VIDEO_PCI_SKELETON) += v4l/
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obj-y += vfio-mdev/
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subdir-$(CONFIG_SAMPLE_VFS) += vfs
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obj-$(CONFIG_SAMPLE_INTEL_MEI) += mei/
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subdir-$(CONFIG_SAMPLE_WATCH_QUEUE) += watch_queue
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