diff options
Diffstat (limited to 'debian/patches-rt/net-use-cpu-chill.patch')
| -rw-r--r-- | debian/patches-rt/net-use-cpu-chill.patch | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/debian/patches-rt/net-use-cpu-chill.patch b/debian/patches-rt/net-use-cpu-chill.patch index a5981d616..fb79dff4d 100644 --- a/debian/patches-rt/net-use-cpu-chill.patch +++ b/debian/patches-rt/net-use-cpu-chill.patch @@ -1,7 +1,7 @@ Subject: net: Use cpu_chill() instead of cpu_relax() From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 07 Mar 2012 21:10:04 +0100 -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz Retry loops on RT might loop forever when the modifying side was preempted. Use cpu_chill() instead of cpu_relax() to let the system @@ -11,8 +11,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- net/packet/af_packet.c | 5 +++-- - net/rds/ib_rdma.c | 3 ++- - 2 files changed, 5 insertions(+), 3 deletions(-) + 1 file changed, 3 insertions(+), 2 deletions(-) --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -42,22 +41,3 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> } } prb_close_block(pkc, pbd, po, status); ---- a/net/rds/ib_rdma.c -+++ b/net/rds/ib_rdma.c -@@ -34,6 +34,7 @@ - #include <linux/slab.h> - #include <linux/rculist.h> - #include <linux/llist.h> -+#include <linux/delay.h> - - #include "rds_single_path.h" - #include "ib_mr.h" -@@ -222,7 +223,7 @@ static inline void wait_clean_list_grace - for_each_online_cpu(cpu) { - flag = &per_cpu(clean_list_grace, cpu); - while (test_bit(CLEAN_LIST_BUSY_BIT, flag)) -- cpu_relax(); -+ cpu_chill(); - } - } - |