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Namhyung Kim 0db61388b3 perf/core: Change to POLLERR for pinned events with error 
Commit:

  f4b07fd62d ("perf/core: Use POLLHUP for pinned events in error")

started to emit POLLHUP for pinned events in an error state.

But the POLLHUP is also used to signal events that the attached task is
terminated.  To distinguish pinned per-task events in the error state
it would need to check if the task is live.

Change it to POLLERR to make it clear.

Suggested-by: Gabriel Marin <gmx@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250422223318.180343-1-namhyung@kernel.org
2025-04-23 09:39:06 +02:00
arch Miscellaneous x86 fixes: 2025-04-18 14:04:57 -07:00
block vfs-6.15-rc3.fixes.2 2025-04-19 14:31:08 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: ahash - Disable request chaining 2025-04-12 09:33:09 +08:00
Documentation 16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues 2025-04-19 21:46:58 -07:00
drivers gcc-15: disable '-Wunterminated-string-initialization' entirely for now 2025-04-20 15:30:53 -07:00
fs for-6.15-rc3-tag 2025-04-22 10:22:38 -07:00
include for-6.15-rc3-tag 2025-04-22 10:22:38 -07:00
init Kconfig: switch CONFIG_SYSFS_SYCALL default to n 2025-04-15 10:28:35 +02:00
io_uring io_uring/zcrx: fix late dma unmap for a dead dev 2025-04-18 06:12:10 -06:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel perf/core: Change to POLLERR for pinned events with error 2025-04-23 09:39:06 +02:00
lib hardening fixes for v6.15-rc3 2025-04-18 13:20:20 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm 16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues 2025-04-19 21:46:58 -07:00
net Including fixes from Bluetooth, CAN and Netfilter. 2025-04-17 11:45:30 -07:00
rust rust: helpers: Add dma_alloc_attrs() and dma_free_attrs() 2025-04-15 23:06:03 +02:00
samples samples/livepatch: add module descriptions 2025-04-11 17:32:38 -07:00
scripts Rust fixes for v6.15 2025-04-19 10:02:43 -07:00
security ima: process_measurement() needlessly takes inode_lock() on MAY_READ 2025-04-22 16:39:32 +02:00
sound ASoC: Fixes for v6.15 2025-04-11 15:51:19 +02:00
tools sched_ext: Fixes for v6.15-rc3 2025-04-21 19:16:29 -07:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-05 04:06:45 +09:00
virt ARM: 2025-04-08 13:47:55 -07:00
.clang-format clang-format: Update the ForEachMacros list for v6.15-rc1 2025-04-13 11:03:59 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-01-10 00:17:25 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes
.gitignore kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
.mailmap sound fixes for 6.15-rc3 2025-04-17 10:14:51 -07:00
.rustfmt.toml
COPYING
CREDITS MAINTAINERS: update SLAB ALLOCATOR maintainers 2025-04-17 20:10:06 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS 16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues 2025-04-19 21:46:58 -07:00
Makefile gcc-15: disable '-Wunterminated-string-initialization' entirely for now 2025-04-20 15:30:53 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.