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Filename Latest commit message Latest commit date
Adrian Hunter d0aab59f09 perf inject: Fix repipe usage 
[ Upstream commit 026334a3bb6a3919b42aba9fc11843db2b77fd41 ]

Since commit 14d3d54052539a1e ("perf session: Try to read pipe data from
file") 'perf inject' has started printing "PERFILE2h" when not processing
pipes.

The commit exposed perf to the possiblity that the input is not a pipe
but the 'repipe' parameter gets used. That causes the printing because
perf inject sets 'repipe' to true always.

The 'repipe' parameter of perf_session__new() is used by 2 functions:

	- perf_file_header__read_pipe()
	- trace_report()

In both cases, the functions copy data to STDOUT_FILENO when 'repipe' is
true.

Fix by setting 'repipe' to true only if the output is a pipe.

Fixes: e558a5bd8b ("perf inject: Work with files")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andrew Vagin <avagin@openvz.org>
Link: http://lore.kernel.org/lkml/20210401103605.9000-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-14 08:24:17 +02:00
arch s390/cpcmd: fix inline assembly register clobbering 2021-04-14 08:24:17 +02:00
block block: recalculate segment count for multi-segment discards correctly 2021-03-30 14:35:28 +02:00
certs certs: Fix blacklist flag type confusion 2021-03-04 10:26:29 +01:00
crypto crypto: x86 - Regularize glue function prototypes 2021-03-20 10:39:47 +01:00
Documentation KVM: arm64: Reject VM creation when the default IPA size is unsupported 2021-03-17 17:03:57 +01:00
drivers clk: fix invalid usage of list cursor in unregister 2021-04-14 08:24:17 +02:00
fs hostfs: fix memory handling in follow_link() 2021-04-14 08:24:14 +02:00
include sch_red: fix off-by-one checks in red_check_params() 2021-04-14 08:24:14 +02:00
init init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM 2021-04-10 13:34:32 +02:00
ipc
kernel workqueue: Move the position of debug_work_activate() in __queue_work() 2021-04-14 08:24:17 +02:00
lib PCI: Fix pci_register_io_range() memory leak 2021-03-17 17:03:44 +01:00
LICENSES
mm mm: fix race by making init_zero_pfn() early_initcall 2021-04-07 14:47:42 +02:00
net net: udp: Add support for getsockopt(..., ..., UDP_GRO, ..., ...); 2021-04-14 08:24:16 +02:00
samples samples, bpf: Add missing munmap in xdpsock 2021-03-17 17:03:33 +01:00
scripts ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount 2021-03-09 11:09:39 +01:00
security integrity: double check iint_cache was initialized 2021-03-30 14:35:24 +02:00
sound ASoC: sunxi: sun4i-codec: fill ASoC card owner 2021-04-14 08:24:15 +02:00
tools perf inject: Fix repipe usage 2021-04-14 08:24:17 +02:00
usr
virt KVM: arm64: Ensure I-cache isolation between vcpus of a same VM 2021-03-17 17:03:57 +01:00
.clang-format
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COPYING
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Makefile Linux 5.4.111 2021-04-10 13:34:32 +02:00
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.