* [PATCH AUTOSEL 6.1 01/14] arch: consolidate arch_irq_work_raise prototypes
@ 2024-01-16 1:06 ` Sasha Levin
0 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Arnd Bergmann, Alexander Gordeev, Catalin Marinas, Palmer Dabbelt,
Guo Ren, Sasha Levin, linux, will, mpe, paul.walmsley, palmer,
aou, hca, gor, tglx, mingo, bp, dave.hansen, x86,
linux-arm-kernel, linux-csky, linuxppc-dev, linux-riscv,
linux-s390
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 64bac5ea17d527872121adddfee869c7a0618f8f ]
The prototype was hidden in an #ifdef on x86, which causes a warning:
kernel/irq_work.c:72:13: error: no previous prototype for 'arch_irq_work_raise' [-Werror=missing-prototypes]
Some architectures have a working prototype, while others don't.
Fix this by providing it in only one place that is always visible.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/include/asm/irq_work.h | 2 --
arch/arm64/include/asm/irq_work.h | 2 --
arch/csky/include/asm/irq_work.h | 2 +-
arch/powerpc/include/asm/irq_work.h | 1 -
arch/riscv/include/asm/irq_work.h | 2 +-
arch/s390/include/asm/irq_work.h | 2 --
arch/x86/include/asm/irq_work.h | 1 -
include/linux/irq_work.h | 3 +++
8 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/arch/arm/include/asm/irq_work.h b/arch/arm/include/asm/irq_work.h
index 3149e4dc1b54..8895999834cc 100644
--- a/arch/arm/include/asm/irq_work.h
+++ b/arch/arm/include/asm/irq_work.h
@@ -9,6 +9,4 @@ static inline bool arch_irq_work_has_interrupt(void)
return is_smp();
}
-extern void arch_irq_work_raise(void);
-
#endif /* _ASM_ARM_IRQ_WORK_H */
diff --git a/arch/arm64/include/asm/irq_work.h b/arch/arm64/include/asm/irq_work.h
index 81bbfa3a035b..a1020285ea75 100644
--- a/arch/arm64/include/asm/irq_work.h
+++ b/arch/arm64/include/asm/irq_work.h
@@ -2,8 +2,6 @@
#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H
-extern void arch_irq_work_raise(void);
-
static inline bool arch_irq_work_has_interrupt(void)
{
return true;
diff --git a/arch/csky/include/asm/irq_work.h b/arch/csky/include/asm/irq_work.h
index 33aaf39d6f94..d39fcc1f5395 100644
--- a/arch/csky/include/asm/irq_work.h
+++ b/arch/csky/include/asm/irq_work.h
@@ -7,5 +7,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return true;
}
-extern void arch_irq_work_raise(void);
+
#endif /* __ASM_CSKY_IRQ_WORK_H */
diff --git a/arch/powerpc/include/asm/irq_work.h b/arch/powerpc/include/asm/irq_work.h
index b8b0be8f1a07..c6d3078bd8c3 100644
--- a/arch/powerpc/include/asm/irq_work.h
+++ b/arch/powerpc/include/asm/irq_work.h
@@ -6,6 +6,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return true;
}
-extern void arch_irq_work_raise(void);
#endif /* _ASM_POWERPC_IRQ_WORK_H */
diff --git a/arch/riscv/include/asm/irq_work.h b/arch/riscv/include/asm/irq_work.h
index b53891964ae0..b27a4d64fc6a 100644
--- a/arch/riscv/include/asm/irq_work.h
+++ b/arch/riscv/include/asm/irq_work.h
@@ -6,5 +6,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return IS_ENABLED(CONFIG_SMP);
}
-extern void arch_irq_work_raise(void);
+
#endif /* _ASM_RISCV_IRQ_WORK_H */
diff --git a/arch/s390/include/asm/irq_work.h b/arch/s390/include/asm/irq_work.h
index 603783766d0a..f00c9f610d5a 100644
--- a/arch/s390/include/asm/irq_work.h
+++ b/arch/s390/include/asm/irq_work.h
@@ -7,6 +7,4 @@ static inline bool arch_irq_work_has_interrupt(void)
return true;
}
-void arch_irq_work_raise(void);
-
#endif /* _ASM_S390_IRQ_WORK_H */
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce0db29..6b4d36c95165 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -9,7 +9,6 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return boot_cpu_has(X86_FEATURE_APIC);
}
-extern void arch_irq_work_raise(void);
#else
static inline bool arch_irq_work_has_interrupt(void)
{
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index 8cd11a223260..136f2980cba3 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -66,6 +66,9 @@ void irq_work_sync(struct irq_work *work);
void irq_work_run(void);
bool irq_work_needs_cpu(void);
void irq_work_single(void *arg);
+
+void arch_irq_work_raise(void);
+
#else
static inline bool irq_work_needs_cpu(void) { return false; }
static inline void irq_work_run(void) { }
--
2.43.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 01/14] arch: consolidate arch_irq_work_raise prototypes
@ 2024-01-16 1:06 ` Sasha Levin
0 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Catalin Marinas, dave.hansen, Palmer Dabbelt, Guo Ren,
Alexander Gordeev, will, linux-riscv, Sasha Levin, linux-s390,
Arnd Bergmann, x86, linux, linux-csky, mingo, aou, gor, hca, bp,
paul.walmsley, tglx, linux-arm-kernel, palmer, linuxppc-dev
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 64bac5ea17d527872121adddfee869c7a0618f8f ]
The prototype was hidden in an #ifdef on x86, which causes a warning:
kernel/irq_work.c:72:13: error: no previous prototype for 'arch_irq_work_raise' [-Werror=missing-prototypes]
Some architectures have a working prototype, while others don't.
Fix this by providing it in only one place that is always visible.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/include/asm/irq_work.h | 2 --
arch/arm64/include/asm/irq_work.h | 2 --
arch/csky/include/asm/irq_work.h | 2 +-
arch/powerpc/include/asm/irq_work.h | 1 -
arch/riscv/include/asm/irq_work.h | 2 +-
arch/s390/include/asm/irq_work.h | 2 --
arch/x86/include/asm/irq_work.h | 1 -
include/linux/irq_work.h | 3 +++
8 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/arch/arm/include/asm/irq_work.h b/arch/arm/include/asm/irq_work.h
index 3149e4dc1b54..8895999834cc 100644
--- a/arch/arm/include/asm/irq_work.h
+++ b/arch/arm/include/asm/irq_work.h
@@ -9,6 +9,4 @@ static inline bool arch_irq_work_has_interrupt(void)
return is_smp();
}
-extern void arch_irq_work_raise(void);
-
#endif /* _ASM_ARM_IRQ_WORK_H */
diff --git a/arch/arm64/include/asm/irq_work.h b/arch/arm64/include/asm/irq_work.h
index 81bbfa3a035b..a1020285ea75 100644
--- a/arch/arm64/include/asm/irq_work.h
+++ b/arch/arm64/include/asm/irq_work.h
@@ -2,8 +2,6 @@
#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H
-extern void arch_irq_work_raise(void);
-
static inline bool arch_irq_work_has_interrupt(void)
{
return true;
diff --git a/arch/csky/include/asm/irq_work.h b/arch/csky/include/asm/irq_work.h
index 33aaf39d6f94..d39fcc1f5395 100644
--- a/arch/csky/include/asm/irq_work.h
+++ b/arch/csky/include/asm/irq_work.h
@@ -7,5 +7,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return true;
}
-extern void arch_irq_work_raise(void);
+
#endif /* __ASM_CSKY_IRQ_WORK_H */
diff --git a/arch/powerpc/include/asm/irq_work.h b/arch/powerpc/include/asm/irq_work.h
index b8b0be8f1a07..c6d3078bd8c3 100644
--- a/arch/powerpc/include/asm/irq_work.h
+++ b/arch/powerpc/include/asm/irq_work.h
@@ -6,6 +6,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return true;
}
-extern void arch_irq_work_raise(void);
#endif /* _ASM_POWERPC_IRQ_WORK_H */
diff --git a/arch/riscv/include/asm/irq_work.h b/arch/riscv/include/asm/irq_work.h
index b53891964ae0..b27a4d64fc6a 100644
--- a/arch/riscv/include/asm/irq_work.h
+++ b/arch/riscv/include/asm/irq_work.h
@@ -6,5 +6,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return IS_ENABLED(CONFIG_SMP);
}
-extern void arch_irq_work_raise(void);
+
#endif /* _ASM_RISCV_IRQ_WORK_H */
diff --git a/arch/s390/include/asm/irq_work.h b/arch/s390/include/asm/irq_work.h
index 603783766d0a..f00c9f610d5a 100644
--- a/arch/s390/include/asm/irq_work.h
+++ b/arch/s390/include/asm/irq_work.h
@@ -7,6 +7,4 @@ static inline bool arch_irq_work_has_interrupt(void)
return true;
}
-void arch_irq_work_raise(void);
-
#endif /* _ASM_S390_IRQ_WORK_H */
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce0db29..6b4d36c95165 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -9,7 +9,6 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return boot_cpu_has(X86_FEATURE_APIC);
}
-extern void arch_irq_work_raise(void);
#else
static inline bool arch_irq_work_has_interrupt(void)
{
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index 8cd11a223260..136f2980cba3 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -66,6 +66,9 @@ void irq_work_sync(struct irq_work *work);
void irq_work_run(void);
bool irq_work_needs_cpu(void);
void irq_work_single(void *arg);
+
+void arch_irq_work_raise(void);
+
#else
static inline bool irq_work_needs_cpu(void) { return false; }
static inline void irq_work_run(void) { }
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 01/14] arch: consolidate arch_irq_work_raise prototypes
@ 2024-01-16 1:06 ` Sasha Levin
0 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Arnd Bergmann, Alexander Gordeev, Catalin Marinas, Palmer Dabbelt,
Guo Ren, Sasha Levin, linux, will, mpe, paul.walmsley, palmer,
aou, hca, gor, tglx, mingo, bp, dave.hansen, x86,
linux-arm-kernel, linux-csky, linuxppc-dev, linux-riscv,
linux-s390
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 64bac5ea17d527872121adddfee869c7a0618f8f ]
The prototype was hidden in an #ifdef on x86, which causes a warning:
kernel/irq_work.c:72:13: error: no previous prototype for 'arch_irq_work_raise' [-Werror=missing-prototypes]
Some architectures have a working prototype, while others don't.
Fix this by providing it in only one place that is always visible.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/include/asm/irq_work.h | 2 --
arch/arm64/include/asm/irq_work.h | 2 --
arch/csky/include/asm/irq_work.h | 2 +-
arch/powerpc/include/asm/irq_work.h | 1 -
arch/riscv/include/asm/irq_work.h | 2 +-
arch/s390/include/asm/irq_work.h | 2 --
arch/x86/include/asm/irq_work.h | 1 -
include/linux/irq_work.h | 3 +++
8 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/arch/arm/include/asm/irq_work.h b/arch/arm/include/asm/irq_work.h
index 3149e4dc1b54..8895999834cc 100644
--- a/arch/arm/include/asm/irq_work.h
+++ b/arch/arm/include/asm/irq_work.h
@@ -9,6 +9,4 @@ static inline bool arch_irq_work_has_interrupt(void)
return is_smp();
}
-extern void arch_irq_work_raise(void);
-
#endif /* _ASM_ARM_IRQ_WORK_H */
diff --git a/arch/arm64/include/asm/irq_work.h b/arch/arm64/include/asm/irq_work.h
index 81bbfa3a035b..a1020285ea75 100644
--- a/arch/arm64/include/asm/irq_work.h
+++ b/arch/arm64/include/asm/irq_work.h
@@ -2,8 +2,6 @@
#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H
-extern void arch_irq_work_raise(void);
-
static inline bool arch_irq_work_has_interrupt(void)
{
return true;
diff --git a/arch/csky/include/asm/irq_work.h b/arch/csky/include/asm/irq_work.h
index 33aaf39d6f94..d39fcc1f5395 100644
--- a/arch/csky/include/asm/irq_work.h
+++ b/arch/csky/include/asm/irq_work.h
@@ -7,5 +7,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return true;
}
-extern void arch_irq_work_raise(void);
+
#endif /* __ASM_CSKY_IRQ_WORK_H */
diff --git a/arch/powerpc/include/asm/irq_work.h b/arch/powerpc/include/asm/irq_work.h
index b8b0be8f1a07..c6d3078bd8c3 100644
--- a/arch/powerpc/include/asm/irq_work.h
+++ b/arch/powerpc/include/asm/irq_work.h
@@ -6,6 +6,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return true;
}
-extern void arch_irq_work_raise(void);
#endif /* _ASM_POWERPC_IRQ_WORK_H */
diff --git a/arch/riscv/include/asm/irq_work.h b/arch/riscv/include/asm/irq_work.h
index b53891964ae0..b27a4d64fc6a 100644
--- a/arch/riscv/include/asm/irq_work.h
+++ b/arch/riscv/include/asm/irq_work.h
@@ -6,5 +6,5 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return IS_ENABLED(CONFIG_SMP);
}
-extern void arch_irq_work_raise(void);
+
#endif /* _ASM_RISCV_IRQ_WORK_H */
diff --git a/arch/s390/include/asm/irq_work.h b/arch/s390/include/asm/irq_work.h
index 603783766d0a..f00c9f610d5a 100644
--- a/arch/s390/include/asm/irq_work.h
+++ b/arch/s390/include/asm/irq_work.h
@@ -7,6 +7,4 @@ static inline bool arch_irq_work_has_interrupt(void)
return true;
}
-void arch_irq_work_raise(void);
-
#endif /* _ASM_S390_IRQ_WORK_H */
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce0db29..6b4d36c95165 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -9,7 +9,6 @@ static inline bool arch_irq_work_has_interrupt(void)
{
return boot_cpu_has(X86_FEATURE_APIC);
}
-extern void arch_irq_work_raise(void);
#else
static inline bool arch_irq_work_has_interrupt(void)
{
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index 8cd11a223260..136f2980cba3 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -66,6 +66,9 @@ void irq_work_sync(struct irq_work *work);
void irq_work_run(void);
bool irq_work_needs_cpu(void);
void irq_work_single(void *arg);
+
+void arch_irq_work_raise(void);
+
#else
static inline bool irq_work_needs_cpu(void) { return false; }
static inline void irq_work_run(void) { }
--
2.43.0
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 02/14] s390/vfio-ap: fix sysfs status attribute for AP queue devices
2024-01-16 1:06 ` Sasha Levin
` (2 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Tony Krowiak, Halil Pasic, Harald Freudenberger,
Alexander Gordeev, Sasha Levin, jjherne, hca, gor, linux-s390
From: Tony Krowiak <akrowiak@linux.ibm.com>
[ Upstream commit a0d8f4eeb7c4ffaee21702bcc91a09b3988c5b7a ]
The 'status' attribute for AP queue devices bound to the vfio_ap device
driver displays incorrect status when the mediated device is attached to a
guest, but the queue device is not passed through. In the current
implementation, the status displayed is 'in_use' which is not correct; it
should be 'assigned'. This can happen if one of the queue devices
associated with a given adapter is not bound to the vfio_ap device driver.
For example:
Queues listed in /sys/bus/ap/drivers/vfio_ap:
14.0005
14.0006
14.000d
16.0006
16.000d
Queues listed in /sys/devices/vfio_ap/matrix/$UUID/matrix
14.0005
14.0006
14.000d
16.0005
16.0006
16.000d
Queues listed in /sys/devices/vfio_ap/matrix/$UUID/guest_matrix
14.0005
14.0006
14.000d
The reason no queues for adapter 0x16 are listed in the guest_matrix is
because queue 16.0005 is not bound to the vfio_ap device driver, so no
queue associated with the adapter is passed through to the guest;
therefore, each queue device for adapter 0x16 should display 'assigned'
instead of 'in_use', because those queues are not in use by a guest, but
only assigned to the mediated device.
Let's check the AP configuration for the guest to determine whether a
queue device is passed through before displaying a status of 'in_use'.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20231108201135.351419-1-akrowiak@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/s390/crypto/vfio_ap_ops.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 934515959ebf..37d8430df32b 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1749,6 +1749,7 @@ static ssize_t status_show(struct device *dev,
{
ssize_t nchars = 0;
struct vfio_ap_queue *q;
+ unsigned long apid, apqi;
struct ap_matrix_mdev *matrix_mdev;
struct ap_device *apdev = to_ap_dev(dev);
@@ -1756,8 +1757,21 @@ static ssize_t status_show(struct device *dev,
q = dev_get_drvdata(&apdev->device);
matrix_mdev = vfio_ap_mdev_for_queue(q);
+ /* If the queue is assigned to the matrix mediated device, then
+ * determine whether it is passed through to a guest; otherwise,
+ * indicate that it is unassigned.
+ */
if (matrix_mdev) {
- if (matrix_mdev->kvm)
+ apid = AP_QID_CARD(q->apqn);
+ apqi = AP_QID_QUEUE(q->apqn);
+ /*
+ * If the queue is passed through to the guest, then indicate
+ * that it is in use; otherwise, indicate that it is
+ * merely assigned to a matrix mediated device.
+ */
+ if (matrix_mdev->kvm &&
+ test_bit_inv(apid, matrix_mdev->shadow_apcb.apm) &&
+ test_bit_inv(apqi, matrix_mdev->shadow_apcb.aqm))
nchars = scnprintf(buf, PAGE_SIZE, "%s\n",
AP_QUEUE_IN_USE);
else
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 03/14] Hexagon: Make pfn accessors statics inlines
2024-01-16 1:06 ` Sasha Levin
` (3 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Linus Walleij, Brian Cain, Arnd Bergmann, Sasha Levin, david,
rppt, mpe, linux-hexagon
From: Linus Walleij <linus.walleij@linaro.org>
[ Upstream commit d6e81532b10d8deb2bc30f7b44f09534876893e3 ]
Making virt_to_pfn() a static inline taking a strongly typed
(const void *) makes the contract of a passing a pointer of that
type to the function explicit and exposes any misuse of the
macro virt_to_pfn() acting polymorphic and accepting many types
such as (void *), (unitptr_t) or (unsigned long) as arguments
without warnings.
For symmetry do the same with pfn_to_virt().
For compiletime resolution of __pa() we need PAGE_OFFSET which
was not available to __pa() and resolved by the preprocessor
wherever __pa() was used. Fix this by explicitly including
<asm/mem-layout.h> where required, following the pattern of the
architectures page.h file.
Acked-by: Brian Cain <bcain@quicinc.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/hexagon/include/asm/page.h | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h
index 7cbf719c578e..2d8c681c3469 100644
--- a/arch/hexagon/include/asm/page.h
+++ b/arch/hexagon/include/asm/page.h
@@ -78,6 +78,9 @@ typedef struct page *pgtable_t;
#define __pgd(x) ((pgd_t) { (x) })
#define __pgprot(x) ((pgprot_t) { (x) })
+/* Needed for PAGE_OFFSET used in the macro right below */
+#include <asm/mem-layout.h>
+
/*
* We need a __pa and a __va routine for kernel space.
* MIPS says they're only used during mem_init.
@@ -126,8 +129,16 @@ static inline void clear_page(void *page)
*/
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
-#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+static inline unsigned long virt_to_pfn(const void *kaddr)
+{
+ return __pa(kaddr) >> PAGE_SHIFT;
+}
+
+static inline void *pfn_to_virt(unsigned long pfn)
+{
+ return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT);
+}
+
#define page_to_virt(page) __va(page_to_phys(page))
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 04/14] s390/ptrace: handle setting of fpc register correctly
2024-01-16 1:06 ` Sasha Levin
` (4 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Heiko Carstens, Claudio Imbrenda, Alexander Gordeev, Sasha Levin,
oleg, gor, linux-s390
From: Heiko Carstens <hca@linux.ibm.com>
[ Upstream commit 8b13601d19c541158a6e18b278c00ba69ae37829 ]
If the content of the floating point control (fpc) register of a traced
process is modified with the ptrace interface the new value is tested for
validity by temporarily loading it into the fpc register.
This may lead to corruption of the fpc register of the tracing process:
if an interrupt happens while the value is temporarily loaded into the
fpc register, and within interrupt context floating point or vector
registers are used, the current fp/vx registers are saved with
save_fpu_regs() assuming they belong to user space and will be loaded into
fp/vx registers when returning to user space.
test_fp_ctl() restores the original user space fpc register value, however
it will be discarded, when returning to user space.
In result the tracer will incorrectly continue to run with the value that
was supposed to be used for the traced process.
Fix this by saving fpu register contents with save_fpu_regs() before using
test_fp_ctl().
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/kernel/ptrace.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 092b16b4dd4f..6b442edb3857 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -385,6 +385,7 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
/*
* floating point control reg. is in the thread structure
*/
+ save_fpu_regs();
if ((unsigned int) data != 0 ||
test_fp_ctl(data >> (BITS_PER_LONG - 32)))
return -EINVAL;
@@ -741,6 +742,7 @@ static int __poke_user_compat(struct task_struct *child,
/*
* floating point control reg. is in the thread structure
*/
+ save_fpu_regs();
if (test_fp_ctl(tmp))
return -EINVAL;
child->thread.fpu.fpc = data;
@@ -904,9 +906,7 @@ static int s390_fpregs_set(struct task_struct *target,
int rc = 0;
freg_t fprs[__NUM_FPRS];
- if (target == current)
- save_fpu_regs();
-
+ save_fpu_regs();
if (MACHINE_HAS_VX)
convert_vx_to_fp(fprs, target->thread.fpu.vxrs);
else
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 05/14] KVM: s390: fix setting of fpc register
2024-01-16 1:06 ` Sasha Levin
` (5 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Heiko Carstens, Christian Borntraeger, Claudio Imbrenda,
Alexander Gordeev, Sasha Levin, frankja, gor, kvm, linux-s390
From: Heiko Carstens <hca@linux.ibm.com>
[ Upstream commit b988b1bb0053c0dcd26187d29ef07566a565cf55 ]
kvm_arch_vcpu_ioctl_set_fpu() allows to set the floating point control
(fpc) register of a guest cpu. The new value is tested for validity by
temporarily loading it into the fpc register.
This may lead to corruption of the fpc register of the host process:
if an interrupt happens while the value is temporarily loaded into the fpc
register, and within interrupt context floating point or vector registers
are used, the current fp/vx registers are saved with save_fpu_regs()
assuming they belong to user space and will be loaded into fp/vx registers
when returning to user space.
test_fp_ctl() restores the original user space / host process fpc register
value, however it will be discarded, when returning to user space.
In result the host process will incorrectly continue to run with the value
that was supposed to be used for a guest cpu.
Fix this by simply removing the test. There is another test right before
the SIE context is entered which will handles invalid values.
This results in a change of behaviour: invalid values will now be accepted
instead of that the ioctl fails with -EINVAL. This seems to be acceptable,
given that this interface is most likely not used anymore, and this is in
addition the same behaviour implemented with the memory mapped interface
(replace invalid values with zero) - see sync_regs() in kvm-s390.c.
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/kvm/kvm-s390.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 3775363471f0..f604946ab2c8 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -4138,10 +4138,6 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
vcpu_load(vcpu);
- if (test_fp_ctl(fpu->fpc)) {
- ret = -EINVAL;
- goto out;
- }
vcpu->run->s.regs.fpc = fpu->fpc;
if (MACHINE_HAS_VX)
convert_fp_to_vx((__vector128 *) vcpu->run->s.regs.vrs,
@@ -4149,7 +4145,6 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
else
memcpy(vcpu->run->s.regs.fprs, &fpu->fprs, sizeof(fpu->fprs));
-out:
vcpu_put(vcpu);
return ret;
}
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 06/14] arm64: Fix circular header dependency
2024-01-16 1:06 ` Sasha Levin
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Kent Overstreet, Suren Baghdasaryan, Sasha Levin, catalin.marinas,
will, arnd, mark.rutland, linux-arm-kernel
From: Kent Overstreet <kent.overstreet@linux.dev>
[ Upstream commit 04bc786d663543512d08f1b86c7bcefb5144afe3 ]
Replace linux/percpu.h include with asm/percpu.h to avoid circular
dependency.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/include/asm/spectre.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/spectre.h b/arch/arm64/include/asm/spectre.h
index aa3d3607d5c8..f7a204a9352c 100644
--- a/arch/arm64/include/asm/spectre.h
+++ b/arch/arm64/include/asm/spectre.h
@@ -13,8 +13,8 @@
#define __BP_HARDEN_HYP_VECS_SZ ((BP_HARDEN_EL2_SLOTS - 1) * SZ_2K)
#ifndef __ASSEMBLY__
-
-#include <linux/percpu.h>
+#include <linux/smp.h>
+#include <asm/percpu.h>
#include <asm/cpufeature.h>
#include <asm/virt.h>
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH AUTOSEL 6.1 06/14] arm64: Fix circular header dependency
@ 2024-01-16 1:06 ` Sasha Levin
0 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Kent Overstreet, Suren Baghdasaryan, Sasha Levin, catalin.marinas,
will, arnd, mark.rutland, linux-arm-kernel
From: Kent Overstreet <kent.overstreet@linux.dev>
[ Upstream commit 04bc786d663543512d08f1b86c7bcefb5144afe3 ]
Replace linux/percpu.h include with asm/percpu.h to avoid circular
dependency.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/include/asm/spectre.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/spectre.h b/arch/arm64/include/asm/spectre.h
index aa3d3607d5c8..f7a204a9352c 100644
--- a/arch/arm64/include/asm/spectre.h
+++ b/arch/arm64/include/asm/spectre.h
@@ -13,8 +13,8 @@
#define __BP_HARDEN_HYP_VECS_SZ ((BP_HARDEN_EL2_SLOTS - 1) * SZ_2K)
#ifndef __ASSEMBLY__
-
-#include <linux/percpu.h>
+#include <linux/smp.h>
+#include <asm/percpu.h>
#include <asm/cpufeature.h>
#include <asm/virt.h>
--
2.43.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH AUTOSEL 6.1 07/14] SUNRPC: Fix a suspicious RCU usage warning
2024-01-16 1:06 ` Sasha Levin
` (7 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Anna Schumaker, Jeff Layton, Sasha Levin, chuck.lever,
trond.myklebust, anna, davem, edumazet, kuba, pabeni, linux-nfs,
netdev
From: Anna Schumaker <Anna.Schumaker@Netapp.com>
[ Upstream commit 31b62908693c90d4d07db597e685d9f25a120073 ]
I received the following warning while running cthon against an ontap
server running pNFS:
[ 57.202521] =============================
[ 57.202522] WARNING: suspicious RCU usage
[ 57.202523] 6.7.0-rc3-g2cc14f52aeb7 #41492 Not tainted
[ 57.202525] -----------------------------
[ 57.202525] net/sunrpc/xprtmultipath.c:349 RCU-list traversed in non-reader section!!
[ 57.202527]
other info that might help us debug this:
[ 57.202528]
rcu_scheduler_active = 2, debug_locks = 1
[ 57.202529] no locks held by test5/3567.
[ 57.202530]
stack backtrace:
[ 57.202532] CPU: 0 PID: 3567 Comm: test5 Not tainted 6.7.0-rc3-g2cc14f52aeb7 #41492 5b09971b4965c0aceba19f3eea324a4a806e227e
[ 57.202534] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 2/2/2022
[ 57.202536] Call Trace:
[ 57.202537] <TASK>
[ 57.202540] dump_stack_lvl+0x77/0xb0
[ 57.202551] lockdep_rcu_suspicious+0x154/0x1a0
[ 57.202556] rpc_xprt_switch_has_addr+0x17c/0x190 [sunrpc ebe02571b9a8ceebf7d98e71675af20c19bdb1f6]
[ 57.202596] rpc_clnt_setup_test_and_add_xprt+0x50/0x180 [sunrpc ebe02571b9a8ceebf7d98e71675af20c19bdb1f6]
[ 57.202621] ? rpc_clnt_add_xprt+0x254/0x300 [sunrpc ebe02571b9a8ceebf7d98e71675af20c19bdb1f6]
[ 57.202646] rpc_clnt_add_xprt+0x27a/0x300 [sunrpc ebe02571b9a8ceebf7d98e71675af20c19bdb1f6]
[ 57.202671] ? __pfx_rpc_clnt_setup_test_and_add_xprt+0x10/0x10 [sunrpc ebe02571b9a8ceebf7d98e71675af20c19bdb1f6]
[ 57.202696] nfs4_pnfs_ds_connect+0x345/0x760 [nfsv4 c716d88496ded0ea6d289bbea684fa996f9b57a9]
[ 57.202728] ? __pfx_nfs4_test_session_trunk+0x10/0x10 [nfsv4 c716d88496ded0ea6d289bbea684fa996f9b57a9]
[ 57.202754] nfs4_fl_prepare_ds+0x75/0xc0 [nfs_layout_nfsv41_files e3a4187f18ae8a27b630f9feae6831b584a9360a]
[ 57.202760] filelayout_write_pagelist+0x4a/0x200 [nfs_layout_nfsv41_files e3a4187f18ae8a27b630f9feae6831b584a9360a]
[ 57.202765] pnfs_generic_pg_writepages+0xbe/0x230 [nfsv4 c716d88496ded0ea6d289bbea684fa996f9b57a9]
[ 57.202788] __nfs_pageio_add_request+0x3fd/0x520 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202813] nfs_pageio_add_request+0x18b/0x390 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202831] nfs_do_writepage+0x116/0x1e0 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202849] nfs_writepages_callback+0x13/0x30 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202866] write_cache_pages+0x265/0x450
[ 57.202870] ? __pfx_nfs_writepages_callback+0x10/0x10 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202891] nfs_writepages+0x141/0x230 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202913] do_writepages+0xd2/0x230
[ 57.202917] ? filemap_fdatawrite_wbc+0x5c/0x80
[ 57.202921] filemap_fdatawrite_wbc+0x67/0x80
[ 57.202924] filemap_write_and_wait_range+0xd9/0x170
[ 57.202930] nfs_wb_all+0x49/0x180 [nfs 6c976fa593a7c2976f5a0aeb4965514a828e6902]
[ 57.202947] nfs4_file_flush+0x72/0xb0 [nfsv4 c716d88496ded0ea6d289bbea684fa996f9b57a9]
[ 57.202969] __se_sys_close+0x46/0xd0
[ 57.202972] do_syscall_64+0x68/0x100
[ 57.202975] ? do_syscall_64+0x77/0x100
[ 57.202976] ? do_syscall_64+0x77/0x100
[ 57.202979] entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 57.202982] RIP: 0033:0x7fe2b12e4a94
[ 57.202985] Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 18 0e 00 00 74 13 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 44 c3 0f 1f 00 48 83 ec 18 89 7c 24 0c e8 c3
[ 57.202987] RSP: 002b:00007ffe857ddb38 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
[ 57.202989] RAX: ffffffffffffffda RBX: 00007ffe857dfd68 RCX: 00007fe2b12e4a94
[ 57.202991] RDX: 0000000000002000 RSI: 00007ffe857ddc40 RDI: 0000000000000003
[ 57.202992] RBP: 00007ffe857dfc50 R08: 7fffffffffffffff R09: 0000000065650f49
[ 57.202993] R10: 00007fe2b11f8300 R11: 0000000000000202 R12: 0000000000000000
[ 57.202994] R13: 00007ffe857dfd80 R14: 00007fe2b1445000 R15: 0000000000000000
[ 57.202999] </TASK>
The problem seems to be that two out of three callers aren't taking the
rcu_read_lock() before calling the list_for_each_entry_rcu() function in
rpc_xprt_switch_has_addr(). I fix this by having
rpc_xprt_switch_has_addr() unconditionaly take the rcu_read_lock(),
which is okay to do recursively in the case that the lock has already
been taken by a caller.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/sunrpc/xprtmultipath.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/net/sunrpc/xprtmultipath.c b/net/sunrpc/xprtmultipath.c
index 701250b305db..0706575d9392 100644
--- a/net/sunrpc/xprtmultipath.c
+++ b/net/sunrpc/xprtmultipath.c
@@ -336,8 +336,9 @@ struct rpc_xprt *xprt_iter_current_entry_offline(struct rpc_xprt_iter *xpi)
xprt_switch_find_current_entry_offline);
}
-bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
- const struct sockaddr *sap)
+static
+bool __rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
+ const struct sockaddr *sap)
{
struct list_head *head;
struct rpc_xprt *pos;
@@ -356,6 +357,18 @@ bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
return false;
}
+bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
+ const struct sockaddr *sap)
+{
+ bool res;
+
+ rcu_read_lock();
+ res = __rpc_xprt_switch_has_addr(xps, sap);
+ rcu_read_unlock();
+
+ return res;
+}
+
static
struct rpc_xprt *xprt_switch_find_next_entry(struct list_head *head,
const struct rpc_xprt *cur, bool check_active)
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 08/14] ext4: enable dioread_nolock as default for bs < ps case
2024-01-16 1:06 ` Sasha Levin
` (8 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
2024-01-16 20:47 ` Pavel Machek
-1 siblings, 1 reply; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Ojaswin Mujoo, Ritesh Harjani, Theodore Ts'o, Sasha Levin,
adilger.kernel, linux-ext4
From: Ojaswin Mujoo <ojaswin@linux.ibm.com>
[ Upstream commit e89fdcc425b6feea4dfb33877e9256757905d763 ]
dioread_nolock was originally disabled as a default option for bs < ps
scenarios due to a data corruption issue. Since then, we've had some
fixes in this area which address such issues. Enable dioread_nolock by
default and remove the experimental warning message for bs < ps path.
dioread for bs < ps has been tested on a 64k pagesize machine using:
kvm-xfstest -C 3 -g auto
with the following configs:
64k adv bigalloc_4k bigalloc_64k data_journal encrypt
dioread_nolock dioread_nolock_4k ext3 ext3conv nojournal
And no new regressions were seen compared to baseline kernel.
Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20231101154717.531865-1-ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/super.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 601e097e1720..93ede89baeca 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2722,15 +2722,6 @@ static int ext4_check_opt_consistency(struct fs_context *fc,
return -EINVAL;
}
- if (ctx_test_mount_opt(ctx, EXT4_MOUNT_DIOREAD_NOLOCK)) {
- int blocksize =
- BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
- if (blocksize < PAGE_SIZE)
- ext4_msg(NULL, KERN_WARNING, "Warning: mounting with an "
- "experimental mount option 'dioread_nolock' "
- "for blocksize < PAGE_SIZE");
- }
-
err = ext4_check_test_dummy_encryption(fc, sb);
if (err)
return err;
@@ -4345,7 +4336,7 @@ static void ext4_set_def_opts(struct super_block *sb,
((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0))
set_opt(sb, DELALLOC);
- if (sb->s_blocksize == PAGE_SIZE)
+ if (sb->s_blocksize <= PAGE_SIZE)
set_opt(sb, DIOREAD_NOLOCK);
}
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* Re: [PATCH AUTOSEL 6.1 08/14] ext4: enable dioread_nolock as default for bs < ps case
2024-01-16 1:06 ` [PATCH AUTOSEL 6.1 08/14] ext4: enable dioread_nolock as default for bs < ps case Sasha Levin
@ 2024-01-16 20:47 ` Pavel Machek
2024-01-24 5:56 ` Ojaswin Mujoo
0 siblings, 1 reply; 21+ messages in thread
From: Pavel Machek @ 2024-01-16 20:47 UTC (permalink / raw)
To: Sasha Levin
Cc: linux-kernel, stable, Ojaswin Mujoo, Ritesh Harjani,
Theodore Ts'o, adilger.kernel, linux-ext4
[-- Attachment #1: Type: text/plain, Size: 927 bytes --]
Hi!
>
> [ Upstream commit e89fdcc425b6feea4dfb33877e9256757905d763 ]
>
> dioread_nolock was originally disabled as a default option for bs < ps
> scenarios due to a data corruption issue. Since then, we've had some
> fixes in this area which address such issues. Enable dioread_nolock by
> default and remove the experimental warning message for bs < ps path.
>
> dioread for bs < ps has been tested on a 64k pagesize machine using:
>
> kvm-xfstest -C 3 -g auto
>
> with the following configs:
>
> 64k adv bigalloc_4k bigalloc_64k data_journal encrypt
> dioread_nolock dioread_nolock_4k ext3 ext3conv nojournal
>
> And no new regressions were seen compared to baseline kernel.
But no fixes, either, so not suitable for stable.
BR,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH AUTOSEL 6.1 08/14] ext4: enable dioread_nolock as default for bs < ps case
2024-01-16 20:47 ` Pavel Machek
@ 2024-01-24 5:56 ` Ojaswin Mujoo
0 siblings, 0 replies; 21+ messages in thread
From: Ojaswin Mujoo @ 2024-01-24 5:56 UTC (permalink / raw)
To: Pavel Machek
Cc: Sasha Levin, linux-kernel, stable, Ritesh Harjani,
Theodore Ts'o, adilger.kernel, linux-ext4
On Tue, Jan 16, 2024 at 09:47:44PM +0100, Pavel Machek wrote:
> Hi!
> >
> > [ Upstream commit e89fdcc425b6feea4dfb33877e9256757905d763 ]
> >
> > dioread_nolock was originally disabled as a default option for bs < ps
> > scenarios due to a data corruption issue. Since then, we've had some
> > fixes in this area which address such issues. Enable dioread_nolock by
> > default and remove the experimental warning message for bs < ps path.
> >
> > dioread for bs < ps has been tested on a 64k pagesize machine using:
> >
> > kvm-xfstest -C 3 -g auto
> >
> > with the following configs:
> >
> > 64k adv bigalloc_4k bigalloc_64k data_journal encrypt
> > dioread_nolock dioread_nolock_4k ext3 ext3conv nojournal
> >
> > And no new regressions were seen compared to baseline kernel.
>
> But no fixes, either, so not suitable for stable.
>
> BR,
> Pavel
Hi Pavel, Sasha,
I agree, this can be dropped from stable since it is not a bug fix.
- ojaswin
>
> --
> DENX Software Engineering GmbH, Managing Director: Erika Unter
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH AUTOSEL 6.1 09/14] smb: client: Fix minor whitespace errors and warnings
2024-01-16 1:06 ` Sasha Levin
` (9 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
2024-01-16 20:48 ` Pavel Machek
-1 siblings, 1 reply; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Pierre Mariani, Steve French, Sasha Levin, sfrench, linux-cifs,
samba-technical
From: Pierre Mariani <pierre.mariani@gmail.com>
[ Upstream commit 0108ce08aed195d200ffbad74c1948bbaefe6625 ]
Fixes no-op checkpatch errors and warnings.
Signed-off-by: Pierre Mariani <pierre.mariani@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/smb/client/connect.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index f725a119ce31..a957efaa5e74 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -505,6 +505,7 @@ static int reconnect_dfs_server(struct TCP_Server_Info *server)
{
int rc = 0;
const char *refpath = server->current_fullpath + 1;
+
struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
struct dfs_cache_tgt_iterator *target_hint = NULL;
int num_targets = 0;
@@ -773,6 +774,7 @@ cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
{
struct msghdr smb_msg = {};
struct kvec iov = {.iov_base = buf, .iov_len = to_read};
+
iov_iter_kvec(&smb_msg.msg_iter, ITER_DEST, &iov, 1, to_read);
return cifs_readv_from_socket(server, &smb_msg);
@@ -1412,11 +1414,13 @@ cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs)
case AF_INET: {
struct sockaddr_in *saddr4 = (struct sockaddr_in *)srcaddr;
struct sockaddr_in *vaddr4 = (struct sockaddr_in *)rhs;
+
return (saddr4->sin_addr.s_addr == vaddr4->sin_addr.s_addr);
}
case AF_INET6: {
struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *)srcaddr;
struct sockaddr_in6 *vaddr6 = (struct sockaddr_in6 *)rhs;
+
return ipv6_addr_equal(&saddr6->sin6_addr, &vaddr6->sin6_addr);
}
default:
@@ -2588,8 +2592,8 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
rc = -EOPNOTSUPP;
goto out_fail;
} else {
- cifs_dbg(VFS, "Check vers= mount option. SMB3.11 "
- "disabled but required for POSIX extensions\n");
+ cifs_dbg(VFS,
+ "Check vers= mount option. SMB3.11 disabled but required for POSIX extensions\n");
rc = -EOPNOTSUPP;
goto out_fail;
}
@@ -2733,7 +2737,6 @@ cifs_put_tlink(struct tcon_link *tlink)
if (!IS_ERR(tlink_tcon(tlink)))
cifs_put_tcon(tlink_tcon(tlink));
kfree(tlink);
- return;
}
static int
@@ -2867,6 +2870,7 @@ static inline void
cifs_reclassify_socket4(struct socket *sock)
{
struct sock *sk = sock->sk;
+
BUG_ON(!sock_allow_reclassification(sk));
sock_lock_init_class_and_name(sk, "slock-AF_INET-CIFS",
&cifs_slock_key[0], "sk_lock-AF_INET-CIFS", &cifs_key[0]);
@@ -2876,6 +2880,7 @@ static inline void
cifs_reclassify_socket6(struct socket *sock)
{
struct sock *sk = sock->sk;
+
BUG_ON(!sock_allow_reclassification(sk));
sock_lock_init_class_and_name(sk, "slock-AF_INET6-CIFS",
&cifs_slock_key[1], "sk_lock-AF_INET6-CIFS", &cifs_key[1]);
@@ -2910,15 +2915,18 @@ static int
bind_socket(struct TCP_Server_Info *server)
{
int rc = 0;
+
if (server->srcaddr.ss_family != AF_UNSPEC) {
/* Bind to the specified local IP address */
struct socket *socket = server->ssocket;
+
rc = kernel_bind(socket,
(struct sockaddr *) &server->srcaddr,
sizeof(server->srcaddr));
if (rc < 0) {
struct sockaddr_in *saddr4;
struct sockaddr_in6 *saddr6;
+
saddr4 = (struct sockaddr_in *)&server->srcaddr;
saddr6 = (struct sockaddr_in6 *)&server->srcaddr;
if (saddr6->sin6_family == AF_INET6)
@@ -3146,6 +3154,7 @@ void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
if (!CIFSSMBQFSUnixInfo(xid, tcon)) {
__u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
+
cifs_dbg(FYI, "unix caps which server supports %lld\n", cap);
/*
* check for reconnect case in which we do not
@@ -3997,7 +4006,7 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
smb_buffer_response = smb_buffer;
header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX,
- NULL /*no tid */ , 4 /*wct */ );
+ NULL /*no tid */, 4 /*wct */);
smb_buffer->Mid = get_next_mid(ses->server);
smb_buffer->Uid = ses->Suid;
@@ -4016,12 +4025,12 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
if (ses->server->sign)
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
- if (ses->capabilities & CAP_STATUS32) {
+ if (ses->capabilities & CAP_STATUS32)
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
- }
- if (ses->capabilities & CAP_DFS) {
+
+ if (ses->capabilities & CAP_DFS)
smb_buffer->Flags2 |= SMBFLG2_DFS;
- }
+
if (ses->capabilities & CAP_UNICODE) {
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
length =
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* Re: [PATCH AUTOSEL 6.1 09/14] smb: client: Fix minor whitespace errors and warnings
2024-01-16 1:06 ` [PATCH AUTOSEL 6.1 09/14] smb: client: Fix minor whitespace errors and warnings Sasha Levin
@ 2024-01-16 20:48 ` Pavel Machek
0 siblings, 0 replies; 21+ messages in thread
From: Pavel Machek @ 2024-01-16 20:48 UTC (permalink / raw)
To: Sasha Levin
Cc: linux-kernel, stable, Pierre Mariani, Steve French, sfrench,
linux-cifs, samba-technical
[-- Attachment #1: Type: text/plain, Size: 4822 bytes --]
Hi!
> [ Upstream commit 0108ce08aed195d200ffbad74c1948bbaefe6625 ]
>
> Fixes no-op checkpatch errors and warnings.
Why did AUTOSEL pick this? It should not be picking whitespace changes.
BR,
Pavel
> index f725a119ce31..a957efaa5e74 100644
> --- a/fs/smb/client/connect.c
> +++ b/fs/smb/client/connect.c
> @@ -505,6 +505,7 @@ static int reconnect_dfs_server(struct TCP_Server_Info *server)
> {
> int rc = 0;
> const char *refpath = server->current_fullpath + 1;
> +
> struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
> struct dfs_cache_tgt_iterator *target_hint = NULL;
> int num_targets = 0;
> @@ -773,6 +774,7 @@ cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
> {
> struct msghdr smb_msg = {};
> struct kvec iov = {.iov_base = buf, .iov_len = to_read};
> +
> iov_iter_kvec(&smb_msg.msg_iter, ITER_DEST, &iov, 1, to_read);
>
> return cifs_readv_from_socket(server, &smb_msg);
> @@ -1412,11 +1414,13 @@ cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs)
> case AF_INET: {
> struct sockaddr_in *saddr4 = (struct sockaddr_in *)srcaddr;
> struct sockaddr_in *vaddr4 = (struct sockaddr_in *)rhs;
> +
> return (saddr4->sin_addr.s_addr == vaddr4->sin_addr.s_addr);
> }
> case AF_INET6: {
> struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *)srcaddr;
> struct sockaddr_in6 *vaddr6 = (struct sockaddr_in6 *)rhs;
> +
> return ipv6_addr_equal(&saddr6->sin6_addr, &vaddr6->sin6_addr);
> }
> default:
> @@ -2588,8 +2592,8 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
> rc = -EOPNOTSUPP;
> goto out_fail;
> } else {
> - cifs_dbg(VFS, "Check vers= mount option. SMB3.11 "
> - "disabled but required for POSIX extensions\n");
> + cifs_dbg(VFS,
> + "Check vers= mount option. SMB3.11 disabled but required for POSIX extensions\n");
> rc = -EOPNOTSUPP;
> goto out_fail;
> }
> @@ -2733,7 +2737,6 @@ cifs_put_tlink(struct tcon_link *tlink)
> if (!IS_ERR(tlink_tcon(tlink)))
> cifs_put_tcon(tlink_tcon(tlink));
> kfree(tlink);
> - return;
> }
>
> static int
> @@ -2867,6 +2870,7 @@ static inline void
> cifs_reclassify_socket4(struct socket *sock)
> {
> struct sock *sk = sock->sk;
> +
> BUG_ON(!sock_allow_reclassification(sk));
> sock_lock_init_class_and_name(sk, "slock-AF_INET-CIFS",
> &cifs_slock_key[0], "sk_lock-AF_INET-CIFS", &cifs_key[0]);
> @@ -2876,6 +2880,7 @@ static inline void
> cifs_reclassify_socket6(struct socket *sock)
> {
> struct sock *sk = sock->sk;
> +
> BUG_ON(!sock_allow_reclassification(sk));
> sock_lock_init_class_and_name(sk, "slock-AF_INET6-CIFS",
> &cifs_slock_key[1], "sk_lock-AF_INET6-CIFS", &cifs_key[1]);
> @@ -2910,15 +2915,18 @@ static int
> bind_socket(struct TCP_Server_Info *server)
> {
> int rc = 0;
> +
> if (server->srcaddr.ss_family != AF_UNSPEC) {
> /* Bind to the specified local IP address */
> struct socket *socket = server->ssocket;
> +
> rc = kernel_bind(socket,
> (struct sockaddr *) &server->srcaddr,
> sizeof(server->srcaddr));
> if (rc < 0) {
> struct sockaddr_in *saddr4;
> struct sockaddr_in6 *saddr6;
> +
> saddr4 = (struct sockaddr_in *)&server->srcaddr;
> saddr6 = (struct sockaddr_in6 *)&server->srcaddr;
> if (saddr6->sin6_family == AF_INET6)
> @@ -3146,6 +3154,7 @@ void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
>
> if (!CIFSSMBQFSUnixInfo(xid, tcon)) {
> __u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
> +
> cifs_dbg(FYI, "unix caps which server supports %lld\n", cap);
> /*
> * check for reconnect case in which we do not
> @@ -3997,7 +4006,7 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
> smb_buffer_response = smb_buffer;
>
> header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX,
> - NULL /*no tid */ , 4 /*wct */ );
> + NULL /*no tid */, 4 /*wct */);
>
> smb_buffer->Mid = get_next_mid(ses->server);
> smb_buffer->Uid = ses->Suid;
> @@ -4016,12 +4025,12 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
> if (ses->server->sign)
> smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
>
> - if (ses->capabilities & CAP_STATUS32) {
> + if (ses->capabilities & CAP_STATUS32)
> smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
> - }
> - if (ses->capabilities & CAP_DFS) {
> +
> + if (ses->capabilities & CAP_DFS)
> smb_buffer->Flags2 |= SMBFLG2_DFS;
> - }
> +
> if (ses->capabilities & CAP_UNICODE) {
> smb_buffer->Flags2 |= SMBFLG2_UNICODE;
> length =
--
DENX Software Engineering GmbH, Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH AUTOSEL 6.1 10/14] ecryptfs: Reject casefold directory inodes
2024-01-16 1:06 ` Sasha Levin
` (10 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Gabriel Krisman Bertazi, Eric Biggers, Sasha Levin, code, brauner,
dchinner, jack, jlayton, walmeida, stefanb, viro, ecryptfs
From: Gabriel Krisman Bertazi <krisman@suse.de>
[ Upstream commit cd72c7ef5fed44272272a105b1da22810c91be69 ]
Even though it seems to be able to resolve some names of
case-insensitive directories, the lack of d_hash and d_compare means we
end up with a broken state in the d_cache. Considering it was never a
goal to support these two together, and we are preparing to use
d_revalidate in case-insensitive filesystems, which would make the
combination even more broken, reject any attempt to get a casefolded
inode from ecryptfs.
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ecryptfs/inode.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index c214fe0981bd..55340ac61456 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -76,6 +76,14 @@ static struct inode *__ecryptfs_get_inode(struct inode *lower_inode,
if (lower_inode->i_sb != ecryptfs_superblock_to_lower(sb))
return ERR_PTR(-EXDEV);
+
+ /* Reject dealing with casefold directories. */
+ if (IS_CASEFOLDED(lower_inode)) {
+ pr_err_ratelimited("%s: Can't handle casefolded directory.\n",
+ __func__);
+ return ERR_PTR(-EREMOTE);
+ }
+
if (!igrab(lower_inode))
return ERR_PTR(-ESTALE);
inode = iget5_locked(sb, (unsigned long)lower_inode,
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 11/14] ext4: fix inconsistent between segment fstrim and full fstrim
2024-01-16 1:06 ` Sasha Levin
` (11 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Ye Bin, Jan Kara, Theodore Ts'o, Sasha Levin, adilger.kernel,
linux-ext4
From: Ye Bin <yebin10@huawei.com>
[ Upstream commit 68da4c44b994aea797eb9821acb3a4a36015293e ]
Suppose we issue two FITRIM ioctls for ranges [0,15] and [16,31] with
mininum length of trimmed range set to 8 blocks. If we have say a range of
blocks 10-22 free, this range will not be trimmed because it straddles the
boundary of the two FITRIM ranges and neither part is big enough. This is a
bit surprising to some users that call FITRIM on smaller ranges of blocks
to limit impact on the system. Also XFS trims all free space extents that
overlap with the specified range so we are inconsistent among filesystems.
Let's change ext4_try_to_trim_range() to consider for trimming the whole
free space extent that straddles the end of specified range, not just the
part of it within the range.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20231216010919.1995851-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/mballoc.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a6e41746890d..35d4fb368dcd 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -6439,13 +6439,15 @@ static int ext4_try_to_trim_range(struct super_block *sb,
__acquires(ext4_group_lock_ptr(sb, e4b->bd_group))
__releases(ext4_group_lock_ptr(sb, e4b->bd_group))
{
- ext4_grpblk_t next, count, free_count;
+ ext4_grpblk_t next, count, free_count, last, origin_start;
bool set_trimmed = false;
void *bitmap;
+ last = ext4_last_grp_cluster(sb, e4b->bd_group);
bitmap = e4b->bd_bitmap;
- if (start == 0 && max >= ext4_last_grp_cluster(sb, e4b->bd_group))
+ if (start == 0 && max >= last)
set_trimmed = true;
+ origin_start = start;
start = max(e4b->bd_info->bb_first_free, start);
count = 0;
free_count = 0;
@@ -6454,7 +6456,10 @@ __releases(ext4_group_lock_ptr(sb, e4b->bd_group))
start = mb_find_next_zero_bit(bitmap, max + 1, start);
if (start > max)
break;
- next = mb_find_next_bit(bitmap, max + 1, start);
+
+ next = mb_find_next_bit(bitmap, last + 1, start);
+ if (origin_start == 0 && next >= last)
+ set_trimmed = true;
if ((next - start) >= minblocks) {
int ret = ext4_trim_extent(sb, start, next - start, e4b);
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 12/14] ext4: unify the type of flexbg_size to unsigned int
2024-01-16 1:06 ` Sasha Levin
` (12 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Baokun Li, Jan Kara, Theodore Ts'o, Sasha Levin,
adilger.kernel, linux-ext4
From: Baokun Li <libaokun1@huawei.com>
[ Upstream commit 658a52344fb139f9531e7543a6e0015b630feb38 ]
The maximum value of flexbg_size is 2^31, but the maximum value of int
is (2^31 - 1), so overflow may occur when the type of flexbg_size is
declared as int.
For example, when uninit_mask is initialized in ext4_alloc_group_tables(),
if flexbg_size == 2^31, the initialized uninit_mask is incorrect, and this
may causes set_flexbg_block_bitmap() to trigger a BUG_ON().
Therefore, the flexbg_size type is declared as unsigned int to avoid
overflow and memory waste.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20231023013057.2117948-2-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/resize.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 9833ab6db117..31f5da7f9f6c 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -241,7 +241,7 @@ struct ext4_new_flex_group_data {
*
* Returns NULL on failure otherwise address of the allocated structure.
*/
-static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned long flexbg_size)
+static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned int flexbg_size)
{
struct ext4_new_flex_group_data *flex_gd;
@@ -296,7 +296,7 @@ static void free_flex_gd(struct ext4_new_flex_group_data *flex_gd)
*/
static int ext4_alloc_group_tables(struct super_block *sb,
struct ext4_new_flex_group_data *flex_gd,
- int flexbg_size)
+ unsigned int flexbg_size)
{
struct ext4_new_group_data *group_data = flex_gd->groups;
ext4_fsblk_t start_blk;
@@ -397,12 +397,12 @@ static int ext4_alloc_group_tables(struct super_block *sb,
group = group_data[0].group;
printk(KERN_DEBUG "EXT4-fs: adding a flex group with "
- "%d groups, flexbg size is %d:\n", flex_gd->count,
+ "%u groups, flexbg size is %u:\n", flex_gd->count,
flexbg_size);
for (i = 0; i < flex_gd->count; i++) {
ext4_debug(
- "adding %s group %u: %u blocks (%d free, %d mdata blocks)\n",
+ "adding %s group %u: %u blocks (%u free, %u mdata blocks)\n",
ext4_bg_has_super(sb, group + i) ? "normal" :
"no-super", group + i,
group_data[i].blocks_count,
@@ -1624,7 +1624,7 @@ static int ext4_flex_group_add(struct super_block *sb,
static int ext4_setup_next_flex_gd(struct super_block *sb,
struct ext4_new_flex_group_data *flex_gd,
ext4_fsblk_t n_blocks_count,
- unsigned long flexbg_size)
+ unsigned int flexbg_size)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_super_block *es = sbi->s_es;
@@ -2010,8 +2010,9 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
ext4_fsblk_t o_blocks_count;
ext4_fsblk_t n_blocks_count_retry = 0;
unsigned long last_update_time = 0;
- int err = 0, flexbg_size = 1 << sbi->s_log_groups_per_flex;
+ int err = 0;
int meta_bg;
+ unsigned int flexbg_size = ext4_flex_bg_size(sbi);
/* See if the device is actually as big as what was requested */
bh = ext4_sb_bread(sb, n_blocks_count - 1, 0);
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 13/14] ext4: remove unnecessary check from alloc_flex_gd()
2024-01-16 1:06 ` Sasha Levin
` (13 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Baokun Li, Jan Kara, Theodore Ts'o, Sasha Levin,
adilger.kernel, linux-ext4
From: Baokun Li <libaokun1@huawei.com>
[ Upstream commit b099eb87de105cf07cad731ded6fb40b2675108b ]
In commit 967ac8af4475 ("ext4: fix potential integer overflow in
alloc_flex_gd()"), an overflow check is added to alloc_flex_gd() to
prevent the allocated memory from being smaller than expected due to
the overflow. However, after kmalloc() is replaced with kmalloc_array()
in commit 6da2ec56059c ("treewide: kmalloc() -> kmalloc_array()"), the
kmalloc_array() function has an overflow check, so the above problem
will not occur. Therefore, the extra check is removed.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20231023013057.2117948-3-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/resize.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 31f5da7f9f6c..e76270ee7fe5 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -249,10 +249,7 @@ static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned int flexbg_size)
if (flex_gd == NULL)
goto out3;
- if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data))
- goto out2;
flex_gd->count = flexbg_size;
-
flex_gd->groups = kmalloc_array(flexbg_size,
sizeof(struct ext4_new_group_data),
GFP_NOFS);
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH AUTOSEL 6.1 14/14] ext4: avoid online resizing failures due to oversized flex bg
2024-01-16 1:06 ` Sasha Levin
` (14 preceding siblings ...)
(?)
@ 2024-01-16 1:06 ` Sasha Levin
-1 siblings, 0 replies; 21+ messages in thread
From: Sasha Levin @ 2024-01-16 1:06 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Baokun Li, Jan Kara, Theodore Ts'o, Sasha Levin,
adilger.kernel, linux-ext4
From: Baokun Li <libaokun1@huawei.com>
[ Upstream commit 5d1935ac02ca5aee364a449a35e2977ea84509b0 ]
When we online resize an ext4 filesystem with a oversized flexbg_size,
mkfs.ext4 -F -G 67108864 $dev -b 4096 100M
mount $dev $dir
resize2fs $dev 16G
the following WARN_ON is triggered:
==================================================================
WARNING: CPU: 0 PID: 427 at mm/page_alloc.c:4402 __alloc_pages+0x411/0x550
Modules linked in: sg(E)
CPU: 0 PID: 427 Comm: resize2fs Tainted: G E 6.6.0-rc5+ #314
RIP: 0010:__alloc_pages+0x411/0x550
Call Trace:
<TASK>
__kmalloc_large_node+0xa2/0x200
__kmalloc+0x16e/0x290
ext4_resize_fs+0x481/0xd80
__ext4_ioctl+0x1616/0x1d90
ext4_ioctl+0x12/0x20
__x64_sys_ioctl+0xf0/0x150
do_syscall_64+0x3b/0x90
==================================================================
This is because flexbg_size is too large and the size of the new_group_data
array to be allocated exceeds MAX_ORDER. Currently, the minimum value of
MAX_ORDER is 8, the minimum value of PAGE_SIZE is 4096, the corresponding
maximum number of groups that can be allocated is:
(PAGE_SIZE << MAX_ORDER) / sizeof(struct ext4_new_group_data) ≈ 21845
And the value that is down-aligned to the power of 2 is 16384. Therefore,
this value is defined as MAX_RESIZE_BG, and the number of groups added
each time does not exceed this value during resizing, and is added multiple
times to complete the online resizing. The difference is that the metadata
in a flex_bg may be more dispersed.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20231023013057.2117948-4-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/resize.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index e76270ee7fe5..f2ed15af703a 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -231,10 +231,17 @@ struct ext4_new_flex_group_data {
in the flex group */
__u16 *bg_flags; /* block group flags of groups
in @groups */
+ ext4_group_t resize_bg; /* number of allocated
+ new_group_data */
ext4_group_t count; /* number of groups in @groups
*/
};
+/*
+ * Avoiding memory allocation failures due to too many groups added each time.
+ */
+#define MAX_RESIZE_BG 16384
+
/*
* alloc_flex_gd() allocates a ext4_new_flex_group_data with size of
* @flexbg_size.
@@ -249,14 +256,18 @@ static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned int flexbg_size)
if (flex_gd == NULL)
goto out3;
- flex_gd->count = flexbg_size;
- flex_gd->groups = kmalloc_array(flexbg_size,
+ if (unlikely(flexbg_size > MAX_RESIZE_BG))
+ flex_gd->resize_bg = MAX_RESIZE_BG;
+ else
+ flex_gd->resize_bg = flexbg_size;
+
+ flex_gd->groups = kmalloc_array(flex_gd->resize_bg,
sizeof(struct ext4_new_group_data),
GFP_NOFS);
if (flex_gd->groups == NULL)
goto out2;
- flex_gd->bg_flags = kmalloc_array(flexbg_size, sizeof(__u16),
+ flex_gd->bg_flags = kmalloc_array(flex_gd->resize_bg, sizeof(__u16),
GFP_NOFS);
if (flex_gd->bg_flags == NULL)
goto out1;
@@ -1620,8 +1631,7 @@ static int ext4_flex_group_add(struct super_block *sb,
static int ext4_setup_next_flex_gd(struct super_block *sb,
struct ext4_new_flex_group_data *flex_gd,
- ext4_fsblk_t n_blocks_count,
- unsigned int flexbg_size)
+ ext4_fsblk_t n_blocks_count)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_super_block *es = sbi->s_es;
@@ -1645,7 +1655,7 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
BUG_ON(last);
ext4_get_group_no_and_offset(sb, n_blocks_count - 1, &n_group, &last);
- last_group = group | (flexbg_size - 1);
+ last_group = group | (flex_gd->resize_bg - 1);
if (last_group > n_group)
last_group = n_group;
@@ -2150,8 +2160,7 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
/* Add flex groups. Note that a regular group is a
* flex group with 1 group.
*/
- while (ext4_setup_next_flex_gd(sb, flex_gd, n_blocks_count,
- flexbg_size)) {
+ while (ext4_setup_next_flex_gd(sb, flex_gd, n_blocks_count)) {
if (time_is_before_jiffies(last_update_time + HZ * 10)) {
if (last_update_time)
ext4_msg(sb, KERN_INFO,
--
2.43.0
^ permalink raw reply related [flat|nested] 21+ messages in thread