diff options
Diffstat (limited to 'debian/patches-rt/mm-zswap-Do-not-disable-preemption-in-zswap_frontswa.patch')
| -rw-r--r-- | debian/patches-rt/mm-zswap-Do-not-disable-preemption-in-zswap_frontswa.patch | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/debian/patches-rt/mm-zswap-Do-not-disable-preemption-in-zswap_frontswa.patch b/debian/patches-rt/mm-zswap-Do-not-disable-preemption-in-zswap_frontswa.patch index 6381d3f02..06c78c71d 100644 --- a/debian/patches-rt/mm-zswap-Do-not-disable-preemption-in-zswap_frontswa.patch +++ b/debian/patches-rt/mm-zswap-Do-not-disable-preemption-in-zswap_frontswa.patch @@ -2,7 +2,7 @@ From: "Luis Claudio R. Goncalves" <lclaudio@uudg.org> Date: Tue, 25 Jun 2019 11:28:04 -0300 Subject: [PATCH] mm/zswap: Do not disable preemption in zswap_frontswap_store() -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 Zswap causes "BUG: scheduling while atomic" by blocking on a rt_spin_lock() with preemption disabled. The preemption is disabled by get_cpu_var() in @@ -74,7 +74,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> #include <linux/types.h> #include <linux/atomic.h> #include <linux/frontswap.h> -@@ -981,6 +982,8 @@ static void zswap_fill_page(void *ptr, u +@@ -980,6 +981,8 @@ static void zswap_fill_page(void *ptr, u memset_l(page, value, PAGE_SIZE / sizeof(unsigned long)); } @@ -98,7 +98,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> if (ret) { ret = -EINVAL; goto put_dstmem; -@@ -1085,7 +1087,7 @@ static int zswap_frontswap_store(unsigne +@@ -1086,7 +1088,7 @@ static int zswap_frontswap_store(unsigne memcpy(buf, &zhdr, hlen); memcpy(buf + hlen, dst, dlen); zpool_unmap_handle(entry->pool->zpool, handle); @@ -107,7 +107,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> /* populate entry */ entry->offset = offset; -@@ -1113,7 +1115,7 @@ static int zswap_frontswap_store(unsigne +@@ -1114,7 +1116,7 @@ static int zswap_frontswap_store(unsigne return 0; put_dstmem: |