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authorLinus Torvalds2020-11-17 11:22:03 -0800
committerLinus Torvalds2020-11-17 11:22:03 -0800
commit111e91a6df505e532a3809ead372787a01e23e0c (patch)
treed3ea7beacfa988dd3b25522257d7dfe87dd051bf /arch
parented129cd75ac1073f32d04d0f2012ede40e86fb77 (diff)
parent78d732e1f326f74f240d416af9484928303d9951 (diff)
Merge tag 's390-5.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens: - fix system call exit path; avoid return to user space with any TIF/CIF/PIF set - fix file permission for cpum_sfb_size parameter - another small defconfig update * tag 's390-5.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cpum_sf.c: fix file permission for cpum_sfb_size s390: update defconfigs s390: fix system call exit path
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/configs/debug_defconfig1
-rw-r--r--arch/s390/kernel/entry.S2
-rw-r--r--arch/s390/kernel/perf_cpum_sf.c2
3 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index a4d3c578fbd8..fe6f529ac82c 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -1,3 +1,4 @@
+CONFIG_UAPI_HEADER_TEST=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_WATCH_QUEUE=y
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 86235919c2d1..5346545b9860 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -422,6 +422,7 @@ ENTRY(system_call)
#endif
LOCKDEP_SYS_EXIT
.Lsysc_tif:
+ DISABLE_INTS
TSTMSK __PT_FLAGS(%r11),_PIF_WORK
jnz .Lsysc_work
TSTMSK __TI_flags(%r12),_TIF_WORK
@@ -444,6 +445,7 @@ ENTRY(system_call)
# One of the work bits is on. Find out which one.
#
.Lsysc_work:
+ ENABLE_INTS
TSTMSK __TI_flags(%r12),_TIF_NEED_RESCHED
jo .Lsysc_reschedule
TSTMSK __PT_FLAGS(%r11),_PIF_SYSCALL_RESTART
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 00255ae3979d..19cd7b961c45 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -2228,4 +2228,4 @@ out:
}
arch_initcall(init_cpum_sampling_pmu);
-core_param(cpum_sfb_size, CPUM_SF_MAX_SDB, sfb_size, 0640);
+core_param(cpum_sfb_size, CPUM_SF_MAX_SDB, sfb_size, 0644);