Mateusz Guzik 2183a5c8a0 af_unix: annotate unix_gc_lock with __cacheline_aligned_in_smp ... Otherwise the lock is susceptible to ever-changing false-sharing due to unrelated changes. This in particular popped up here where an unrelated change improved performance: https://lore.kernel.org/oe-lkp/202511281306.51105b46-lkp@intel.com/ Stabilize it with an explicit annotation which also has a side effect of furher improving scalability: > in our oiginal report, 284922f4c5 has a 6.1% performance improvement comparing > to parent 17d85f33a8. > we applied your patch directly upon 284922f4c5. as below, now by > "284922f4c5 + your patch" > we observe a 12.8% performance improvements (still comparing to 17d85f33a8). Note nothing was done for the other fields, so some fluctuation is still possible. Tested-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Mateusz Guzik <mjguzik@gmail.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20251203100122.291550-1-mjguzik@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-12-08 23:43:24 -08:00
..
af_unix.c	Networking changes for 6.19.	2025-12-03 17:24:33 -08:00
af_unix.h	af_unix: Consolidate unix_schedule_gc() and wait_for_unix_gc().	2025-11-18 19:19:32 -08:00
diag.c	net: remove sock_i_uid()	2025-06-23 17:04:03 -07:00
garbage.c	af_unix: annotate unix_gc_lock with __cacheline_aligned_in_smp	2025-12-08 23:43:24 -08:00
Kconfig	af_unix: Add a prompt to CONFIG_AF_UNIX_OOB	2024-12-19 19:16:15 -08:00
Makefile	af_unix: Remove CONFIG_UNIX_SCM.	2024-01-31 16:41:16 -08:00
sysctl_net_unix.c	af_unix: Clean up #include under net/unix/.	2025-03-25 04:30:07 -07:00
unix_bpf.c	af_unix: Explicitly include headers for non-pointer struct fields.	2025-03-25 04:30:07 -07:00