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authorJeff Layton <jlayton@kernel.org>2026-01-06 09:38:22 -0500
committerChristian Brauner <brauner@kernel.org>2026-01-14 16:50:36 +0100
commit46329a9dd74bd12e92fb7cc8afe70dad32875758 (patch)
treea38c7a541f9c1cd20c23e033af5c099191927885 /init
parent6784f274722559c0cdaaa418bc8b7b1d61c314f9 (diff)
acct(2): begin the deprecation of legacy BSD process accounting
As Christian points out [1], even though it's privileged, this interface has a lot of footguns. There are better options these days (e.g. eBPF), so it would be good to start discouraging its use and mark it as deprecated. [1]: https://lore.kernel.org/linux-fsdevel/20250212-giert-spannend-8893f1eaba7d@brauner/ Signed-off-by: Jeff Layton <jlayton@kernel.org> Link: https://patch.msgid.link/20260106-bsd-acct-v1-1-d15564b52c83@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig7
1 files changed, 5 insertions, 2 deletions
diff --git a/init/Kconfig b/init/Kconfig
index fa79feb8fe57..160c1c4ef253 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -624,8 +624,9 @@ config SCHED_HW_PRESSURE
arch_update_hw_pressure() and arch_scale_thermal_pressure().
config BSD_PROCESS_ACCT
- bool "BSD Process Accounting"
+ bool "BSD Process Accounting (DEPRECATED)"
depends on MULTIUSER
+ default n
help
If you say Y here, a user level program will be able to instruct the
kernel (via a special system call) to write process accounting
@@ -635,7 +636,9 @@ config BSD_PROCESS_ACCT
command name, memory usage, controlling terminal etc. (the complete
list is in the struct acct in <file:include/linux/acct.h>). It is
up to the user level program to do useful things with this
- information. This is generally a good idea, so say Y.
+ information. This mechanism is antiquated and has significant
+ scalability issues. You probably want to use eBPF instead. Say
+ N unless you really need this.
config BSD_PROCESS_ACCT_V3
bool "BSD Process Accounting version 3 file format"