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Masami Hiramatsu (Google) 40adaf51cb tracing/eprobe: Fix eprobe filter to make a filter correctly 
Since the eprobe filter was defined based on the eprobe's trace event
itself, it doesn't work correctly. Use the original trace event of
the eprobe when making the filter so that the filter works correctly.

Without this fix:

 # echo 'e syscalls/sys_enter_openat \
	flags_rename=$flags:u32 if flags < 1000' >> dynamic_events
 # echo 1 > events/eprobes/sys_enter_openat/enable
[  114.551550] event trace: Could not enable event sys_enter_openat
-bash: echo: write error: Invalid argument

With this fix:
 # echo 'e syscalls/sys_enter_openat \
	flags_rename=$flags:u32 if flags < 1000' >> dynamic_events
 # echo 1 > events/eprobes/sys_enter_openat/enable
 # tail trace
cat-241     [000] ...1.   266.498449: sys_enter_openat: (syscalls.sys_enter_openat) flags_rename=0
cat-242     [000] ...1.   266.977640: sys_enter_openat: (syscalls.sys_enter_openat) flags_rename=0

Link: https://lore.kernel.org/all/166823166395.1385292.8931770640212414483.stgit@devnote3/

Fixes: 752be5c5c9 ("tracing/eprobe: Add eprobe filter support")
Reported-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Tested-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2022-11-18 10:15:34 +09:00
arch - fix jump label branch range check 2022-11-13 07:57:33 -08:00
block block-6.1-2022-11-11 2022-11-11 14:08:30 -08:00
certs
crypto
Documentation 22 hotfixes. 8 are cc:stable and the remainder address issues which were 2022-11-11 17:18:42 -08:00
drivers Third batch of EFI fixes for v6.1 2022-11-13 07:52:22 -08:00
fs 22 hotfixes. 8 are cc:stable and the remainder address issues which were 2022-11-11 17:18:42 -08:00
include tracing/ring-buffer: Have polling block on watermark 2022-11-16 17:13:04 -05:00
init
io_uring
ipc
kernel tracing/eprobe: Fix eprobe filter to make a filter correctly 2022-11-18 10:15:34 +09:00
lib
LICENSES
mm 22 hotfixes. 8 are cc:stable and the remainder address issues which were 2022-11-11 17:18:42 -08:00
net
rust
samples
scripts s390 updates for 6.1-rc5 2022-11-11 11:49:20 -08:00
security
sound ALSA: memalloc: Try dma_alloc_noncontiguous() at first 2022-11-12 09:48:51 +01:00
tools 22 hotfixes. 8 are cc:stable and the remainder address issues which were 2022-11-11 17:18:42 -08:00
usr
virt
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MAINTAINERS hyperv-fixes for v6.1-rc5 2022-11-11 09:24:03 -08:00
Makefile Linux 6.1-rc5 2022-11-13 13:12:55 -08:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.