Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) stmmac_drv_probe() can race with stmmac_open() because we register
the netdevice too early. Fix from Florian Fainelli.
2) UFO handling in __ip6_append_data() and ip6_finish_output() use
different tests for deciding whether a frame will be fragmented or
not, put them in sync. Fix from Zheng Li.
3) The rtnetlink getstats handlers need to validate that the netlink
request is large enough, fix from Mathias Krause.
4) Use after free in mlx4 driver, from Jack Morgenstein.
5) Fix setting of garbage UID value in sockets during setattr() calls,
from Eric Biggers.
6) Packet drop_monitor doesn't format the netlink messages properly
such that nlmsg_next fails to work, fix from Reiter Wolfgang.
7) Fix handling of wildcard addresses in l2tp lookups, from Guillaume
Nault.
8) __skb_flow_dissect() can crash on pptp packets, from Ian Kumlien.
9) IGMP code doesn't reset group query timers properly, from Michal
Tesar.
10) Fix overzealous MAIN/LOCAL route table combining in ipv4, from
Alexander Duyck.
11) vxlan offload check needs to be more strict in be2net driver, from
Sabrina Dubroca.
12) Moving l3mdev to packet hooks lost RX stat counters unintentionally,
fix from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
sh_eth: enable RX descriptor word 0 shift on SH7734
sfc: don't report RX hash keys to ethtool when RSS wasn't enabled
dpaa_eth: Initialize CGR structure before init
dpaa_eth: cleanup after init_phy() failure
net: systemport: Pad packet before inserting TSB
net: systemport: Utilize skb_put_padto()
LiquidIO VF: s/select/imply/ for PTP_1588_CLOCK
libcxgb: fix error check for ip6_route_output()
net: usb: asix_devices: add .reset_resume for USB PM
net: vrf: Add missing Rx counters
drop_monitor: consider inserted data in genlmsg_end
benet: stricter vxlan offloading check in be_features_check
ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules
net: macb: Updated resource allocation function calls to new version of API.
net: stmmac: dwmac-oxnas: use generic pm implementation
net: stmmac: dwmac-oxnas: fix fixed-link-phydev leaks
net: stmmac: dwmac-oxnas: fix of-node leak
Documentation/networking: fix typo in mpls-sysctl
igmp: Make igmp group member RFC 3376 compliant
flow_dissector: Update pptp handling to avoid null pointer deref.
...
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index c75e5d6..a6eb7dc 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -12,7 +12,7 @@
kernel-api.xml filesystems.xml lsm.xml kgdb.xml \
gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
- 80211.xml sh.xml regulator.xml w1.xml \
+ sh.xml regulator.xml w1.xml \
writing_musb_glue_layer.xml iio.xml
ifeq ($(DOCBOOKS),)
diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt
index 5164215..c0a3bb5 100644
--- a/Documentation/block/queue-sysfs.txt
+++ b/Documentation/block/queue-sysfs.txt
@@ -54,9 +54,9 @@
io_poll (RW)
------------
-When read, this file shows the total number of block IO polls and how
-many returned success. Writing '0' to this file will disable polling
-for this device. Writing any non-zero value will enable this feature.
+When read, this file shows whether polling is enabled (1) or disabled
+(0). Writing '0' to this file will disable polling for this device.
+Writing any non-zero value will enable this feature.
io_poll_delay (RW)
------------------
diff --git a/Documentation/unaligned-memory-access.txt b/Documentation/unaligned-memory-access.txt
index a445da0..3f76c0c 100644
--- a/Documentation/unaligned-memory-access.txt
+++ b/Documentation/unaligned-memory-access.txt
@@ -151,7 +151,7 @@
#else
const u16 *a = (const u16 *)addr1;
const u16 *b = (const u16 *)addr2;
- return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
+ return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0;
#endif
}
diff --git a/MAINTAINERS b/MAINTAINERS
index cfff2c9..97d0b68 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5080,9 +5080,11 @@
F: drivers/net/wan/sdla.c
FRAMEBUFFER LAYER
+M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
L: linux-fbdev@vger.kernel.org
+T: git git://github.com/bzolnier/linux.git
Q: http://patchwork.kernel.org/project/linux-fbdev/list/
-S: Orphan
+S: Maintained
F: Documentation/fb/
F: drivers/video/
F: include/video/
@@ -8852,17 +8854,22 @@
NVM EXPRESS DRIVER
M: Keith Busch <keith.busch@intel.com>
M: Jens Axboe <axboe@fb.com>
+M: Christoph Hellwig <hch@lst.de>
+M: Sagi Grimberg <sagi@grimberg.me>
L: linux-nvme@lists.infradead.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
-W: https://kernel.googlesource.com/pub/scm/linux/kernel/git/axboe/linux-block/
+T: git://git.infradead.org/nvme.git
+W: http://git.infradead.org/nvme.git
S: Supported
F: drivers/nvme/host/
F: include/linux/nvme.h
+F: include/uapi/linux/nvme_ioctl.h
NVM EXPRESS TARGET DRIVER
M: Christoph Hellwig <hch@lst.de>
M: Sagi Grimberg <sagi@grimberg.me>
L: linux-nvme@lists.infradead.org
+T: git://git.infradead.org/nvme.git
+W: http://git.infradead.org/nvme.git
S: Supported
F: drivers/nvme/target/
diff --git a/Makefile b/Makefile
index ec411ba..5470d59 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 10
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
NAME = Roaring Lionus
# *DOCUMENTATION*
diff --git a/arch/openrisc/kernel/vmlinux.lds.S b/arch/openrisc/kernel/vmlinux.lds.S
index ef31fc2..5525446 100644
--- a/arch/openrisc/kernel/vmlinux.lds.S
+++ b/arch/openrisc/kernel/vmlinux.lds.S
@@ -44,6 +44,8 @@
/* Read-only sections, merged into text segment: */
. = LOAD_BASE ;
+ _text = .;
+
/* _s_kernel_ro must be page aligned */
. = ALIGN(PAGE_SIZE);
_s_kernel_ro = .;
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 7581330e..88fe0aa 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -49,7 +49,6 @@
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_32BIT 4 /* 32 bit binary */
#define TIF_MEMDIE 5 /* is terminating due to OOM killer */
-#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
#define TIF_SINGLESTEP 9 /* single stepping? */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index da0d9cb..1e22f98 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -235,9 +235,26 @@
cr16_hz = 100 * PAGE0->mem_10msec; /* Hz */
- /* register at clocksource framework */
- clocksource_register_hz(&clocksource_cr16, cr16_hz);
-
/* register as sched_clock source */
sched_clock_register(read_cr16_sched_clock, BITS_PER_LONG, cr16_hz);
}
+
+static int __init init_cr16_clocksource(void)
+{
+ /*
+ * The cr16 interval timers are not syncronized across CPUs, so mark
+ * them unstable and lower rating on SMP systems.
+ */
+ if (num_online_cpus() > 1) {
+ clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
+ clocksource_cr16.rating = 0;
+ }
+
+ /* register at clocksource framework */
+ clocksource_register_hz(&clocksource_cr16,
+ 100 * PAGE0->mem_10msec);
+
+ return 0;
+}
+
+device_initcall(init_cr16_clocksource);
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 8ff9253..1a0b4f6 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -234,7 +234,7 @@
tsk->comm, code, address);
print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);
- pr_cont(" trap #%lu: %s%c", code, trap_name(code),
+ pr_cont("\ntrap #%lu: %s%c", code, trap_name(code),
vma ? ',':'\n');
if (vma)
diff --git a/arch/s390/include/asm/asm-prototypes.h b/arch/s390/include/asm/asm-prototypes.h
new file mode 100644
index 0000000..2c3413b
--- /dev/null
+++ b/arch/s390/include/asm/asm-prototypes.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_S390_PROTOTYPES_H
+
+#include <linux/kvm_host.h>
+#include <linux/ftrace.h>
+#include <asm/fpu/api.h>
+#include <asm-generic/asm-prototypes.h>
+
+#endif /* _ASM_S390_PROTOTYPES_H */
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 6b246aa..1b5c5ee 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -94,7 +94,7 @@
* Update process times based on virtual cpu times stored by entry.S
* to the lowcore fields user_timer, system_timer & steal_clock.
*/
-static int do_account_vtime(struct task_struct *tsk, int hardirq_offset)
+static int do_account_vtime(struct task_struct *tsk)
{
u64 timer, clock, user, system, steal;
u64 user_scaled, system_scaled;
@@ -138,7 +138,7 @@
}
account_user_time(tsk, user);
tsk->utimescaled += user_scaled;
- account_system_time(tsk, hardirq_offset, system);
+ account_system_time(tsk, 0, system);
tsk->stimescaled += system_scaled;
steal = S390_lowcore.steal_timer;
@@ -152,7 +152,7 @@
void vtime_task_switch(struct task_struct *prev)
{
- do_account_vtime(prev, 0);
+ do_account_vtime(prev);
prev->thread.user_timer = S390_lowcore.user_timer;
prev->thread.system_timer = S390_lowcore.system_timer;
S390_lowcore.user_timer = current->thread.user_timer;
@@ -166,7 +166,7 @@
*/
void vtime_account_user(struct task_struct *tsk)
{
- if (do_account_vtime(tsk, HARDIRQ_OFFSET))
+ if (do_account_vtime(tsk))
virt_timer_expire();
}
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 68557f52..8540227 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -139,6 +139,19 @@
asm volatile("btr %1,%0" : ADDR : "Ir" (nr));
}
+static __always_inline bool clear_bit_unlock_is_negative_byte(long nr, volatile unsigned long *addr)
+{
+ bool negative;
+ asm volatile(LOCK_PREFIX "andb %2,%1\n\t"
+ CC_SET(s)
+ : CC_OUT(s) (negative), ADDR
+ : "ir" ((char) ~(1 << nr)) : "memory");
+ return negative;
+}
+
+// Let everybody know we have it
+#define clear_bit_unlock_is_negative_byte clear_bit_unlock_is_negative_byte
+
/*
* __clear_bit_unlock - Clears a bit in memory
* @nr: Bit to clear
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 6e82769..f0a9c07 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -544,6 +544,8 @@
* the timer to kick off queuing again.
*/
static void __wbt_wait(struct rq_wb *rwb, unsigned long rw, spinlock_t *lock)
+ __releases(lock)
+ __acquires(lock)
{
struct rq_wait *rqw = get_rq_wait(rwb, current_is_kswapd());
DEFINE_WAIT(wait);
@@ -558,13 +560,12 @@
if (may_queue(rwb, rqw, &wait, rw))
break;
- if (lock)
+ if (lock) {
spin_unlock_irq(lock);
-
- io_schedule();
-
- if (lock)
+ io_schedule();
spin_lock_irq(lock);
+ } else
+ io_schedule();
} while (1);
finish_wait(&rqw->wait, &wait);
@@ -595,7 +596,7 @@
* in an irq held spinlock, if it holds one when calling this function.
* If we do sleep, we'll release and re-grab it.
*/
-unsigned int wbt_wait(struct rq_wb *rwb, struct bio *bio, spinlock_t *lock)
+enum wbt_flags wbt_wait(struct rq_wb *rwb, struct bio *bio, spinlock_t *lock)
{
unsigned int ret = 0;
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index f616ad7..44e888b 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1461,16 +1461,25 @@
for (i = 0; i < ctcount; i++) {
unsigned int dlen = COMP_BUF_SIZE;
int ilen = ctemplate[i].inlen;
+ void *input_vec;
+ input_vec = kmalloc(ilen, GFP_KERNEL);
+ if (!input_vec) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(input_vec, ctemplate[i].input, ilen);
memset(output, 0, dlen);
init_completion(&result.completion);
- sg_init_one(&src, ctemplate[i].input, ilen);
+ sg_init_one(&src, input_vec, ilen);
sg_init_one(&dst, output, dlen);
req = acomp_request_alloc(tfm);
if (!req) {
pr_err("alg: acomp: request alloc failed for %s\n",
algo);
+ kfree(input_vec);
ret = -ENOMEM;
goto out;
}
@@ -1483,6 +1492,7 @@
if (ret) {
pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
i + 1, algo, -ret);
+ kfree(input_vec);
acomp_request_free(req);
goto out;
}
@@ -1491,6 +1501,7 @@
pr_err("alg: acomp: Compression test %d failed for %s: output len = %d\n",
i + 1, algo, req->dlen);
ret = -EINVAL;
+ kfree(input_vec);
acomp_request_free(req);
goto out;
}
@@ -1500,26 +1511,37 @@
i + 1, algo);
hexdump(output, req->dlen);
ret = -EINVAL;
+ kfree(input_vec);
acomp_request_free(req);
goto out;
}
+ kfree(input_vec);
acomp_request_free(req);
}
for (i = 0; i < dtcount; i++) {
unsigned int dlen = COMP_BUF_SIZE;
int ilen = dtemplate[i].inlen;
+ void *input_vec;
+ input_vec = kmalloc(ilen, GFP_KERNEL);
+ if (!input_vec) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(input_vec, dtemplate[i].input, ilen);
memset(output, 0, dlen);
init_completion(&result.completion);
- sg_init_one(&src, dtemplate[i].input, ilen);
+ sg_init_one(&src, input_vec, ilen);
sg_init_one(&dst, output, dlen);
req = acomp_request_alloc(tfm);
if (!req) {
pr_err("alg: acomp: request alloc failed for %s\n",
algo);
+ kfree(input_vec);
ret = -ENOMEM;
goto out;
}
@@ -1532,6 +1554,7 @@
if (ret) {
pr_err("alg: acomp: decompression failed on test %d for %s: ret=%d\n",
i + 1, algo, -ret);
+ kfree(input_vec);
acomp_request_free(req);
goto out;
}
@@ -1540,6 +1563,7 @@
pr_err("alg: acomp: Decompression test %d failed for %s: output len = %d\n",
i + 1, algo, req->dlen);
ret = -EINVAL;
+ kfree(input_vec);
acomp_request_free(req);
goto out;
}
@@ -1549,10 +1573,12 @@
i + 1, algo);
hexdump(output, req->dlen);
ret = -EINVAL;
+ kfree(input_vec);
acomp_request_free(req);
goto out;
}
+ kfree(input_vec);
acomp_request_free(req);
}
diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index a768da7..b7872f6 100644
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -273,7 +273,8 @@
#define CESA_TDMA_SRC_IN_SRAM BIT(30)
#define CESA_TDMA_END_OF_REQ BIT(29)
#define CESA_TDMA_BREAK_CHAIN BIT(28)
-#define CESA_TDMA_TYPE_MSK GENMASK(27, 0)
+#define CESA_TDMA_SET_STATE BIT(27)
+#define CESA_TDMA_TYPE_MSK GENMASK(26, 0)
#define CESA_TDMA_DUMMY 0
#define CESA_TDMA_DATA 1
#define CESA_TDMA_OP 2
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index 317cf02..77c0fb9 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -280,13 +280,32 @@
sreq->offset = 0;
}
+static void mv_cesa_ahash_dma_step(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_req *base = &creq->base;
+
+ /* We must explicitly set the digest state. */
+ if (base->chain.first->flags & CESA_TDMA_SET_STATE) {
+ struct mv_cesa_engine *engine = base->engine;
+ int i;
+
+ /* Set the hash state in the IVDIG regs. */
+ for (i = 0; i < ARRAY_SIZE(creq->state); i++)
+ writel_relaxed(creq->state[i], engine->regs +
+ CESA_IVDIG(i));
+ }
+
+ mv_cesa_dma_step(base);
+}
+
static void mv_cesa_ahash_step(struct crypto_async_request *req)
{
struct ahash_request *ahashreq = ahash_request_cast(req);
struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ)
- mv_cesa_dma_step(&creq->base);
+ mv_cesa_ahash_dma_step(ahashreq);
else
mv_cesa_ahash_std_step(ahashreq);
}
@@ -584,12 +603,16 @@
struct mv_cesa_ahash_dma_iter iter;
struct mv_cesa_op_ctx *op = NULL;
unsigned int frag_len;
+ bool set_state = false;
int ret;
u32 type;
basereq->chain.first = NULL;
basereq->chain.last = NULL;
+ if (!mv_cesa_mac_op_is_first_frag(&creq->op_tmpl))
+ set_state = true;
+
if (creq->src_nents) {
ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
DMA_TO_DEVICE);
@@ -683,6 +706,15 @@
if (type != CESA_TDMA_RESULT)
basereq->chain.last->flags |= CESA_TDMA_BREAK_CHAIN;
+ if (set_state) {
+ /*
+ * Put the CESA_TDMA_SET_STATE flag on the first tdma desc to
+ * let the step logic know that the IVDIG registers should be
+ * explicitly set before launching a TDMA chain.
+ */
+ basereq->chain.first->flags |= CESA_TDMA_SET_STATE;
+ }
+
return 0;
err_free_tdma:
diff --git a/drivers/crypto/marvell/tdma.c b/drivers/crypto/marvell/tdma.c
index 4416b88..c76375f 100644
--- a/drivers/crypto/marvell/tdma.c
+++ b/drivers/crypto/marvell/tdma.c
@@ -109,7 +109,14 @@
last->next = dreq->chain.first;
engine->chain.last = dreq->chain.last;
- if (!(last->flags & CESA_TDMA_BREAK_CHAIN))
+ /*
+ * Break the DMA chain if the CESA_TDMA_BREAK_CHAIN is set on
+ * the last element of the current chain, or if the request
+ * being queued needs the IV regs to be set before lauching
+ * the request.
+ */
+ if (!(last->flags & CESA_TDMA_BREAK_CHAIN) &&
+ !(dreq->chain.first->flags & CESA_TDMA_SET_STATE))
last->next_dma = dreq->chain.first->cur_dma;
}
}
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index d40ed9f..70b12f8 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -64,7 +64,8 @@
#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
#define QUIRK_IS_MULTITOUCH BIT(3)
-#define NOTEBOOK_QUIRKS QUIRK_FIX_NOTEBOOK_REPORT
+#define KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
+ QUIRK_NO_INIT_REPORTS)
#define TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
QUIRK_SKIP_INPUT_MAPPING | \
QUIRK_IS_MULTITOUCH)
@@ -170,11 +171,11 @@
static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
+ struct input_dev *input = hi->input;
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
int ret;
- struct input_dev *input = hi->input;
input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, MAX_Y, 0, 0);
@@ -191,10 +192,10 @@
hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
return ret;
}
-
- drvdata->input = input;
}
+ drvdata->input = input;
+
return 0;
}
@@ -286,7 +287,11 @@
goto err_stop_hw;
}
- drvdata->input->name = "Asus TouchPad";
+ if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
+ drvdata->input->name = "Asus TouchPad";
+ } else {
+ drvdata->input->name = "Asus Keyboard";
+ }
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
ret = asus_start_multitouch(hdev);
@@ -315,7 +320,7 @@
static const struct hid_device_id asus_devices[] = {
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
- USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD), NOTEBOOK_QUIRKS},
+ USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD), KEYBOARD_QUIRKS},
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_TOUCHPAD), TOUCHPAD_QUIRKS },
{ }
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ec277b9..54bd22d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -319,6 +319,7 @@
#define USB_VENDOR_ID_DRAGONRISE 0x0079
#define USB_DEVICE_ID_DRAGONRISE_WIIU 0x1800
#define USB_DEVICE_ID_DRAGONRISE_PS3 0x1801
+#define USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR 0x1803
#define USB_DEVICE_ID_DRAGONRISE_GAMECUBE 0x1843
#define USB_VENDOR_ID_DWAV 0x0eef
@@ -365,6 +366,9 @@
#define USB_VENDOR_ID_FLATFROG 0x25b5
#define USB_DEVICE_ID_MULTITOUCH_3200 0x0002
+#define USB_VENDOR_ID_FUTABA 0x0547
+#define USB_DEVICE_ID_LED_DISPLAY 0x7000
+
#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 5c92522..4ef7337 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -212,7 +212,6 @@
__s32 value;
int ret = 0;
- memset(buffer, 0, buffer_size);
mutex_lock(&data->mutex);
report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
if (!report || (field_index >= report->maxfield)) {
@@ -256,6 +255,8 @@
int buffer_index = 0;
int i;
+ memset(buffer, 0, buffer_size);
+
mutex_lock(&data->mutex);
report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
if (!report || (field_index >= report->maxfield) ||
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 7687c08..f405b07 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -1099,8 +1099,11 @@
u8 led_delay_on[MAX_LEDS];
u8 led_delay_off[MAX_LEDS];
u8 led_count;
+ bool ds4_dongle_connected;
};
+static void sony_set_leds(struct sony_sc *sc);
+
static inline void sony_schedule_work(struct sony_sc *sc)
{
if (!sc->defer_initialization)
@@ -1430,6 +1433,31 @@
return -EILSEQ;
}
}
+
+ /*
+ * In the case of a DS4 USB dongle, bit[2] of byte 31 indicates
+ * if a DS4 is actually connected (indicated by '0').
+ * For non-dongle, this bit is always 0 (connected).
+ */
+ if (sc->hdev->vendor == USB_VENDOR_ID_SONY &&
+ sc->hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) {
+ bool connected = (rd[31] & 0x04) ? false : true;
+
+ if (!sc->ds4_dongle_connected && connected) {
+ hid_info(sc->hdev, "DualShock 4 USB dongle: controller connected\n");
+ sony_set_leds(sc);
+ sc->ds4_dongle_connected = true;
+ } else if (sc->ds4_dongle_connected && !connected) {
+ hid_info(sc->hdev, "DualShock 4 USB dongle: controller disconnected\n");
+ sc->ds4_dongle_connected = false;
+ /* Return 0, so hidraw can get the report. */
+ return 0;
+ } else if (!sc->ds4_dongle_connected) {
+ /* Return 0, so hidraw can get the report. */
+ return 0;
+ }
+ }
+
dualshock4_parse_report(sc, rd, size);
}
@@ -2390,6 +2418,12 @@
}
memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
+
+ snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
+ "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+ sc->mac_address[5], sc->mac_address[4],
+ sc->mac_address[3], sc->mac_address[2],
+ sc->mac_address[1], sc->mac_address[0]);
} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
@@ -2548,7 +2582,7 @@
hid_err(sc->hdev,
"Unable to initialize multi-touch slots: %d\n",
ret);
- return ret;
+ goto err_stop;
}
sony_init_output_report(sc, dualshock4_send_output_report);
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index b3e01c8..e9d6cc7 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -83,11 +83,13 @@
{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3, HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_FUTABA, USB_DEVICE_ID_LED_DISPLAY, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index b40cfb0..2fc86dc 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1193,8 +1193,8 @@
blk_queue_max_hw_sectors(q, ctrl->max_hw_sectors);
blk_queue_max_segments(q, min_t(u32, max_segments, USHRT_MAX));
}
- if (ctrl->stripe_size)
- blk_queue_chunk_sectors(q, ctrl->stripe_size >> 9);
+ if (ctrl->quirks & NVME_QUIRK_STRIPE_SIZE)
+ blk_queue_chunk_sectors(q, ctrl->max_hw_sectors);
blk_queue_virt_boundary(q, ctrl->page_size - 1);
if (ctrl->vwc & NVME_CTRL_VWC_PRESENT)
vwc = true;
@@ -1250,19 +1250,6 @@
ctrl->max_hw_sectors =
min_not_zero(ctrl->max_hw_sectors, max_hw_sectors);
- if ((ctrl->quirks & NVME_QUIRK_STRIPE_SIZE) && id->vs[3]) {
- unsigned int max_hw_sectors;
-
- ctrl->stripe_size = 1 << (id->vs[3] + page_shift);
- max_hw_sectors = ctrl->stripe_size >> (page_shift - 9);
- if (ctrl->max_hw_sectors) {
- ctrl->max_hw_sectors = min(max_hw_sectors,
- ctrl->max_hw_sectors);
- } else {
- ctrl->max_hw_sectors = max_hw_sectors;
- }
- }
-
nvme_set_queue_limits(ctrl, ctrl->admin_q);
ctrl->sgls = le32_to_cpu(id->sgls);
ctrl->kas = le16_to_cpu(id->kas);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 771e2e7..aa0bc60 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1491,19 +1491,20 @@
nvme_fc_create_hw_io_queues(struct nvme_fc_ctrl *ctrl, u16 qsize)
{
struct nvme_fc_queue *queue = &ctrl->queues[1];
- int i, j, ret;
+ int i, ret;
for (i = 1; i < ctrl->queue_count; i++, queue++) {
ret = __nvme_fc_create_hw_queue(ctrl, queue, i, qsize);
- if (ret) {
- for (j = i-1; j >= 0; j--)
- __nvme_fc_delete_hw_queue(ctrl,
- &ctrl->queues[j], j);
- return ret;
- }
+ if (ret)
+ goto delete_queues;
}
return 0;
+
+delete_queues:
+ for (; i >= 0; i--)
+ __nvme_fc_delete_hw_queue(ctrl, &ctrl->queues[i], i);
+ return ret;
}
static int
@@ -2401,8 +2402,8 @@
WARN_ON_ONCE(!changed);
dev_info(ctrl->ctrl.device,
- "NVME-FC{%d}: new ctrl: NQN \"%s\" (%p)\n",
- ctrl->cnum, ctrl->ctrl.opts->subsysnqn, &ctrl);
+ "NVME-FC{%d}: new ctrl: NQN \"%s\"\n",
+ ctrl->cnum, ctrl->ctrl.opts->subsysnqn);
kref_get(&ctrl->ctrl.kref);
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index bd53214..6377e14 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -135,7 +135,6 @@
u32 page_size;
u32 max_hw_sectors;
- u32 stripe_size;
u16 oncs;
u16 vid;
atomic_t abort_limit;
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 3d21a15..19beeb7 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -712,15 +712,8 @@
req = blk_mq_tag_to_rq(*nvmeq->tags, cqe.command_id);
nvme_req(req)->result = cqe.result;
blk_mq_complete_request(req, le16_to_cpu(cqe.status) >> 1);
-
}
- /* If the controller ignores the cq head doorbell and continuously
- * writes to the queue, it is theoretically possible to wrap around
- * the queue twice and mistakenly return IRQ_NONE. Linux only
- * requires that 0.1% of your interrupts are handled, so this isn't
- * a big problem.
- */
if (head == nvmeq->cq_head && phase == nvmeq->cq_phase)
return;
@@ -1909,10 +1902,10 @@
if (!dev->bar)
goto release;
- return 0;
+ return 0;
release:
- pci_release_mem_regions(pdev);
- return -ENODEV;
+ pci_release_mem_regions(pdev);
+ return -ENODEV;
}
static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c
index b71e950..a5c09e7 100644
--- a/drivers/nvme/host/scsi.c
+++ b/drivers/nvme/host/scsi.c
@@ -2160,30 +2160,6 @@
return nvme_trans_status_code(hdr, nvme_sc);
}
-static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,
- u8 *cmd)
-{
- u8 immed, no_flush;
-
- immed = cmd[1] & 0x01;
- no_flush = cmd[4] & 0x04;
-
- if (immed != 0) {
- return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,
- ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB,
- SCSI_ASCQ_CAUSE_NOT_REPORTABLE);
- } else {
- if (no_flush == 0) {
- /* Issue NVME FLUSH command prior to START STOP UNIT */
- int res = nvme_trans_synchronize_cache(ns, hdr);
- if (res)
- return res;
- }
-
- return 0;
- }
-}
-
static int nvme_trans_format_unit(struct nvme_ns *ns, struct sg_io_hdr *hdr,
u8 *cmd)
{
@@ -2439,9 +2415,6 @@
case SECURITY_PROTOCOL_OUT:
retcode = nvme_trans_security_protocol(ns, hdr, cmd);
break;
- case START_STOP:
- retcode = nvme_trans_start_stop(ns, hdr, cmd);
- break;
case SYNCHRONIZE_CACHE:
retcode = nvme_trans_synchronize_cache(ns, hdr);
break;
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index ec1ad2a..95ae523 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -382,7 +382,6 @@
{
struct nvmet_subsys *subsys = req->sq->ctrl->subsys;
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10[0]);
- u64 val;
u32 val32;
u16 status = 0;
@@ -392,8 +391,7 @@
(subsys->max_qid - 1) | ((subsys->max_qid - 1) << 16));
break;
case NVME_FEAT_KATO:
- val = le64_to_cpu(req->cmd->prop_set.value);
- val32 = val & 0xffff;
+ val32 = le32_to_cpu(req->cmd->common.cdw10[1]);
req->sq->ctrl->kato = DIV_ROUND_UP(val32, 1000);
nvmet_set_result(req, req->sq->ctrl->kato);
break;
diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c
index bcb8ebe..4e8e6a2 100644
--- a/drivers/nvme/target/fcloop.c
+++ b/drivers/nvme/target/fcloop.c
@@ -845,7 +845,7 @@
rport->lport = nport->lport;
nport->rport = rport;
- return ret ? ret : count;
+ return count;
}
@@ -952,7 +952,7 @@
tport->lport = nport->lport;
nport->tport = tport;
- return ret ? ret : count;
+ return count;
}
diff --git a/drivers/video/fbdev/cobalt_lcdfb.c b/drivers/video/fbdev/cobalt_lcdfb.c
index 2d3b691..038ac69 100644
--- a/drivers/video/fbdev/cobalt_lcdfb.c
+++ b/drivers/video/fbdev/cobalt_lcdfb.c
@@ -308,6 +308,11 @@
info->screen_size = resource_size(res);
info->screen_base = devm_ioremap(&dev->dev, res->start,
info->screen_size);
+ if (!info->screen_base) {
+ framebuffer_release(info);
+ return -ENOMEM;
+ }
+
info->fbops = &cobalt_lcd_fbops;
info->fix = cobalt_lcdfb_fix;
info->fix.smem_start = res->start;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 6254cee..5db5d13 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -328,6 +328,7 @@
struct file *file = iocb->ki_filp;
struct inode *inode = bdev_file_inode(file);
struct block_device *bdev = I_BDEV(inode);
+ struct blk_plug plug;
struct blkdev_dio *dio;
struct bio *bio;
bool is_read = (iov_iter_rw(iter) == READ);
@@ -353,6 +354,7 @@
dio->multi_bio = false;
dio->should_dirty = is_read && (iter->type == ITER_IOVEC);
+ blk_start_plug(&plug);
for (;;) {
bio->bi_bdev = bdev;
bio->bi_iter.bi_sector = pos >> 9;
@@ -394,6 +396,7 @@
submit_bio(bio);
bio = bio_alloc(GFP_KERNEL, nr_pages);
}
+ blk_finish_plug(&plug);
if (!dio->is_sync)
return -EIOCBQUEUED;
diff --git a/fs/buffer.c b/fs/buffer.c
index d21771f..0e87401 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1660,7 +1660,7 @@
head = page_buffers(page);
bh = head;
do {
- if (!buffer_mapped(bh))
+ if (!buffer_mapped(bh) || (bh->b_blocknr < block))
goto next;
if (bh->b_blocknr >= block + len)
break;
diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index 6eeea1d..95cd4c3 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -248,7 +248,8 @@
goto out;
if (fscrypt_dummy_context_enabled(inode)) {
- memset(raw_key, 0x42, FS_AES_256_XTS_KEY_SIZE);
+ memset(raw_key, 0x42, keysize/2);
+ memset(raw_key+keysize/2, 0x24, keysize - (keysize/2));
goto got_key;
}
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index 6ed7c2e..d6cd7ea 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -179,6 +179,11 @@
BUG_ON(1);
}
+ /* No restrictions on file types which are never encrypted */
+ if (!S_ISREG(child->i_mode) && !S_ISDIR(child->i_mode) &&
+ !S_ISLNK(child->i_mode))
+ return 1;
+
/* no restrictions if the parent directory is not encrypted */
if (!parent->i_sb->s_cop->is_encrypted(parent))
return 1;
diff --git a/fs/dax.c b/fs/dax.c
index a8732fb..5c74f60 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -451,16 +451,37 @@
__wake_up(wq, TASK_NORMAL, wake_all ? 0 : 1, &key);
}
+static int __dax_invalidate_mapping_entry(struct address_space *mapping,
+ pgoff_t index, bool trunc)
+{
+ int ret = 0;
+ void *entry;
+ struct radix_tree_root *page_tree = &mapping->page_tree;
+
+ spin_lock_irq(&mapping->tree_lock);
+ entry = get_unlocked_mapping_entry(mapping, index, NULL);
+ if (!entry || !radix_tree_exceptional_entry(entry))
+ goto out;
+ if (!trunc &&
+ (radix_tree_tag_get(page_tree, index, PAGECACHE_TAG_DIRTY) ||
+ radix_tree_tag_get(page_tree, index, PAGECACHE_TAG_TOWRITE)))
+ goto out;
+ radix_tree_delete(page_tree, index);
+ mapping->nrexceptional--;
+ ret = 1;
+out:
+ put_unlocked_mapping_entry(mapping, index, entry);
+ spin_unlock_irq(&mapping->tree_lock);
+ return ret;
+}
/*
* Delete exceptional DAX entry at @index from @mapping. Wait for radix tree
* entry to get unlocked before deleting it.
*/
int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index)
{
- void *entry;
+ int ret = __dax_invalidate_mapping_entry(mapping, index, true);
- spin_lock_irq(&mapping->tree_lock);
- entry = get_unlocked_mapping_entry(mapping, index, NULL);
/*
* This gets called from truncate / punch_hole path. As such, the caller
* must hold locks protecting against concurrent modifications of the
@@ -468,16 +489,46 @@
* caller has seen exceptional entry for this index, we better find it
* at that index as well...
*/
- if (WARN_ON_ONCE(!entry || !radix_tree_exceptional_entry(entry))) {
- spin_unlock_irq(&mapping->tree_lock);
- return 0;
- }
- radix_tree_delete(&mapping->page_tree, index);
- mapping->nrexceptional--;
- spin_unlock_irq(&mapping->tree_lock);
- dax_wake_mapping_entry_waiter(mapping, index, entry, true);
+ WARN_ON_ONCE(!ret);
+ return ret;
+}
- return 1;
+/*
+ * Invalidate exceptional DAX entry if easily possible. This handles DAX
+ * entries for invalidate_inode_pages() so we evict the entry only if we can
+ * do so without blocking.
+ */
+int dax_invalidate_mapping_entry(struct address_space *mapping, pgoff_t index)
+{
+ int ret = 0;
+ void *entry, **slot;
+ struct radix_tree_root *page_tree = &mapping->page_tree;
+
+ spin_lock_irq(&mapping->tree_lock);
+ entry = __radix_tree_lookup(page_tree, index, NULL, &slot);
+ if (!entry || !radix_tree_exceptional_entry(entry) ||
+ slot_locked(mapping, slot))
+ goto out;
+ if (radix_tree_tag_get(page_tree, index, PAGECACHE_TAG_DIRTY) ||
+ radix_tree_tag_get(page_tree, index, PAGECACHE_TAG_TOWRITE))
+ goto out;
+ radix_tree_delete(page_tree, index);
+ mapping->nrexceptional--;
+ ret = 1;
+out:
+ spin_unlock_irq(&mapping->tree_lock);
+ if (ret)
+ dax_wake_mapping_entry_waiter(mapping, index, entry, true);
+ return ret;
+}
+
+/*
+ * Invalidate exceptional DAX entry if it is clean.
+ */
+int dax_invalidate_mapping_entry_sync(struct address_space *mapping,
+ pgoff_t index)
+{
+ return __dax_invalidate_mapping_entry(mapping, index, false);
}
/*
@@ -488,15 +539,16 @@
* otherwise it will simply fall out of the page cache under memory
* pressure without ever having been dirtied.
*/
-static int dax_load_hole(struct address_space *mapping, void *entry,
+static int dax_load_hole(struct address_space *mapping, void **entry,
struct vm_fault *vmf)
{
struct page *page;
+ int ret;
/* Hole page already exists? Return it... */
- if (!radix_tree_exceptional_entry(entry)) {
- vmf->page = entry;
- return VM_FAULT_LOCKED;
+ if (!radix_tree_exceptional_entry(*entry)) {
+ page = *entry;
+ goto out;
}
/* This will replace locked radix tree entry with a hole page */
@@ -504,8 +556,17 @@
vmf->gfp_mask | __GFP_ZERO);
if (!page)
return VM_FAULT_OOM;
+ out:
vmf->page = page;
- return VM_FAULT_LOCKED;
+ ret = finish_fault(vmf);
+ vmf->page = NULL;
+ *entry = page;
+ if (!ret) {
+ /* Grab reference for PTE that is now referencing the page */
+ get_page(page);
+ return VM_FAULT_NOPAGE;
+ }
+ return ret;
}
static int copy_user_dax(struct block_device *bdev, sector_t sector, size_t size,
@@ -934,6 +995,17 @@
if (WARN_ON_ONCE(iomap->type != IOMAP_MAPPED))
return -EIO;
+ /*
+ * Write can allocate block for an area which has a hole page mapped
+ * into page tables. We have to tear down these mappings so that data
+ * written by write(2) is visible in mmap.
+ */
+ if ((iomap->flags & IOMAP_F_NEW) && inode->i_mapping->nrpages) {
+ invalidate_inode_pages2_range(inode->i_mapping,
+ pos >> PAGE_SHIFT,
+ (end - 1) >> PAGE_SHIFT);
+ }
+
while (pos < end) {
unsigned offset = pos & (PAGE_SIZE - 1);
struct blk_dax_ctl dax = { 0 };
@@ -992,23 +1064,6 @@
if (iov_iter_rw(iter) == WRITE)
flags |= IOMAP_WRITE;
- /*
- * Yes, even DAX files can have page cache attached to them: A zeroed
- * page is inserted into the pagecache when we have to serve a write
- * fault on a hole. It should never be dirtied and can simply be
- * dropped from the pagecache once we get real data for the page.
- *
- * XXX: This is racy against mmap, and there's nothing we can do about
- * it. We'll eventually need to shift this down even further so that
- * we can check if we allocated blocks over a hole first.
- */
- if (mapping->nrpages) {
- ret = invalidate_inode_pages2_range(mapping,
- pos >> PAGE_SHIFT,
- (pos + iov_iter_count(iter) - 1) >> PAGE_SHIFT);
- WARN_ON_ONCE(ret);
- }
-
while (iov_iter_count(iter)) {
ret = iomap_apply(inode, pos, iov_iter_count(iter), flags, ops,
iter, dax_iomap_actor);
@@ -1023,6 +1078,15 @@
}
EXPORT_SYMBOL_GPL(dax_iomap_rw);
+static int dax_fault_return(int error)
+{
+ if (error == 0)
+ return VM_FAULT_NOPAGE;
+ if (error == -ENOMEM)
+ return VM_FAULT_OOM;
+ return VM_FAULT_SIGBUS;
+}
+
/**
* dax_iomap_fault - handle a page fault on a DAX file
* @vma: The virtual memory area where the fault occurred
@@ -1055,12 +1119,6 @@
if (pos >= i_size_read(inode))
return VM_FAULT_SIGBUS;
- entry = grab_mapping_entry(mapping, vmf->pgoff, 0);
- if (IS_ERR(entry)) {
- error = PTR_ERR(entry);
- goto out;
- }
-
if ((vmf->flags & FAULT_FLAG_WRITE) && !vmf->cow_page)
flags |= IOMAP_WRITE;
@@ -1071,9 +1129,15 @@
*/
error = ops->iomap_begin(inode, pos, PAGE_SIZE, flags, &iomap);
if (error)
- goto unlock_entry;
+ return dax_fault_return(error);
if (WARN_ON_ONCE(iomap.offset + iomap.length < pos + PAGE_SIZE)) {
- error = -EIO; /* fs corruption? */
+ vmf_ret = dax_fault_return(-EIO); /* fs corruption? */
+ goto finish_iomap;
+ }
+
+ entry = grab_mapping_entry(mapping, vmf->pgoff, 0);
+ if (IS_ERR(entry)) {
+ vmf_ret = dax_fault_return(PTR_ERR(entry));
goto finish_iomap;
}
@@ -1096,13 +1160,13 @@
}
if (error)
- goto finish_iomap;
+ goto error_unlock_entry;
__SetPageUptodate(vmf->cow_page);
vmf_ret = finish_fault(vmf);
if (!vmf_ret)
vmf_ret = VM_FAULT_DONE_COW;
- goto finish_iomap;
+ goto unlock_entry;
}
switch (iomap.type) {
@@ -1114,12 +1178,15 @@
}
error = dax_insert_mapping(mapping, iomap.bdev, sector,
PAGE_SIZE, &entry, vma, vmf);
+ /* -EBUSY is fine, somebody else faulted on the same PTE */
+ if (error == -EBUSY)
+ error = 0;
break;
case IOMAP_UNWRITTEN:
case IOMAP_HOLE:
if (!(vmf->flags & FAULT_FLAG_WRITE)) {
- vmf_ret = dax_load_hole(mapping, entry, vmf);
- break;
+ vmf_ret = dax_load_hole(mapping, &entry, vmf);
+ goto unlock_entry;
}
/*FALLTHRU*/
default:
@@ -1128,31 +1195,25 @@
break;
}
+ error_unlock_entry:
+ vmf_ret = dax_fault_return(error) | major;
+ unlock_entry:
+ put_locked_mapping_entry(mapping, vmf->pgoff, entry);
finish_iomap:
if (ops->iomap_end) {
- if (error || (vmf_ret & VM_FAULT_ERROR)) {
- /* keep previous error */
- ops->iomap_end(inode, pos, PAGE_SIZE, 0, flags,
- &iomap);
- } else {
- error = ops->iomap_end(inode, pos, PAGE_SIZE,
- PAGE_SIZE, flags, &iomap);
- }
+ int copied = PAGE_SIZE;
+
+ if (vmf_ret & VM_FAULT_ERROR)
+ copied = 0;
+ /*
+ * The fault is done by now and there's no way back (other
+ * thread may be already happily using PTE we have installed).
+ * Just ignore error from ->iomap_end since we cannot do much
+ * with it.
+ */
+ ops->iomap_end(inode, pos, PAGE_SIZE, copied, flags, &iomap);
}
- unlock_entry:
- if (vmf_ret != VM_FAULT_LOCKED || error)
- put_locked_mapping_entry(mapping, vmf->pgoff, entry);
- out:
- if (error == -ENOMEM)
- return VM_FAULT_OOM | major;
- /* -EBUSY is fine, somebody else faulted on the same PTE */
- if (error < 0 && error != -EBUSY)
- return VM_FAULT_SIGBUS | major;
- if (vmf_ret) {
- WARN_ON_ONCE(error); /* -EBUSY from ops->iomap_end? */
- return vmf_ret;
- }
- return VM_FAULT_NOPAGE | major;
+ return vmf_ret;
}
EXPORT_SYMBOL_GPL(dax_iomap_fault);
@@ -1277,16 +1338,6 @@
goto fallback;
/*
- * grab_mapping_entry() will make sure we get a 2M empty entry, a DAX
- * PMD or a HZP entry. If it can't (because a 4k page is already in
- * the tree, for instance), it will return -EEXIST and we just fall
- * back to 4k entries.
- */
- entry = grab_mapping_entry(mapping, pgoff, RADIX_DAX_PMD);
- if (IS_ERR(entry))
- goto fallback;
-
- /*
* Note that we don't use iomap_apply here. We aren't doing I/O, only
* setting up a mapping, so really we're using iomap_begin() as a way
* to look up our filesystem block.
@@ -1294,10 +1345,21 @@
pos = (loff_t)pgoff << PAGE_SHIFT;
error = ops->iomap_begin(inode, pos, PMD_SIZE, iomap_flags, &iomap);
if (error)
- goto unlock_entry;
+ goto fallback;
+
if (iomap.offset + iomap.length < pos + PMD_SIZE)
goto finish_iomap;
+ /*
+ * grab_mapping_entry() will make sure we get a 2M empty entry, a DAX
+ * PMD or a HZP entry. If it can't (because a 4k page is already in
+ * the tree, for instance), it will return -EEXIST and we just fall
+ * back to 4k entries.
+ */
+ entry = grab_mapping_entry(mapping, pgoff, RADIX_DAX_PMD);
+ if (IS_ERR(entry))
+ goto finish_iomap;
+
vmf.pgoff = pgoff;
vmf.flags = flags;
vmf.gfp_mask = mapping_gfp_mask(mapping) | __GFP_IO;
@@ -1310,7 +1372,7 @@
case IOMAP_UNWRITTEN:
case IOMAP_HOLE:
if (WARN_ON_ONCE(write))
- goto finish_iomap;
+ goto unlock_entry;
result = dax_pmd_load_hole(vma, pmd, &vmf, address, &iomap,
&entry);
break;
@@ -1319,20 +1381,23 @@
break;
}
- finish_iomap:
- if (ops->iomap_end) {
- if (result == VM_FAULT_FALLBACK) {
- ops->iomap_end(inode, pos, PMD_SIZE, 0, iomap_flags,
- &iomap);
- } else {
- error = ops->iomap_end(inode, pos, PMD_SIZE, PMD_SIZE,
- iomap_flags, &iomap);
- if (error)
- result = VM_FAULT_FALLBACK;
- }
- }
unlock_entry:
put_locked_mapping_entry(mapping, pgoff, entry);
+ finish_iomap:
+ if (ops->iomap_end) {
+ int copied = PMD_SIZE;
+
+ if (result == VM_FAULT_FALLBACK)
+ copied = 0;
+ /*
+ * The fault is done by now and there's no way back (other
+ * thread may be already happily using PMD we have installed).
+ * Just ignore error from ->iomap_end since we cannot do much
+ * with it.
+ */
+ ops->iomap_end(inode, pos, PMD_SIZE, copied, iomap_flags,
+ &iomap);
+ }
fallback:
if (result == VM_FAULT_FALLBACK) {
split_huge_pmd(vma, pmd, address);
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 0093ea2..f073bfc 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -751,9 +751,8 @@
mutex_unlock(&ei->truncate_mutex);
goto cleanup;
}
- } else {
- *new = true;
}
+ *new = true;
ext2_splice_branch(inode, iblock, partial, indirect_blks, count);
mutex_unlock(&ei->truncate_mutex);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index b5f1844..d663d3d 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -258,7 +258,6 @@
static int ext4_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
int result;
- handle_t *handle = NULL;
struct inode *inode = file_inode(vma->vm_file);
struct super_block *sb = inode->i_sb;
bool write = vmf->flags & FAULT_FLAG_WRITE;
@@ -266,24 +265,12 @@
if (write) {
sb_start_pagefault(sb);
file_update_time(vma->vm_file);
- down_read(&EXT4_I(inode)->i_mmap_sem);
- handle = ext4_journal_start_sb(sb, EXT4_HT_WRITE_PAGE,
- EXT4_DATA_TRANS_BLOCKS(sb));
- } else
- down_read(&EXT4_I(inode)->i_mmap_sem);
-
- if (IS_ERR(handle))
- result = VM_FAULT_SIGBUS;
- else
- result = dax_iomap_fault(vma, vmf, &ext4_iomap_ops);
-
- if (write) {
- if (!IS_ERR(handle))
- ext4_journal_stop(handle);
- up_read(&EXT4_I(inode)->i_mmap_sem);
+ }
+ down_read(&EXT4_I(inode)->i_mmap_sem);
+ result = dax_iomap_fault(vma, vmf, &ext4_iomap_ops);
+ up_read(&EXT4_I(inode)->i_mmap_sem);
+ if (write)
sb_end_pagefault(sb);
- } else
- up_read(&EXT4_I(inode)->i_mmap_sem);
return result;
}
@@ -292,7 +279,6 @@
pmd_t *pmd, unsigned int flags)
{
int result;
- handle_t *handle = NULL;
struct inode *inode = file_inode(vma->vm_file);
struct super_block *sb = inode->i_sb;
bool write = flags & FAULT_FLAG_WRITE;
@@ -300,27 +286,13 @@
if (write) {
sb_start_pagefault(sb);
file_update_time(vma->vm_file);
- down_read(&EXT4_I(inode)->i_mmap_sem);
- handle = ext4_journal_start_sb(sb, EXT4_HT_WRITE_PAGE,
- ext4_chunk_trans_blocks(inode,
- PMD_SIZE / PAGE_SIZE));
- } else
- down_read(&EXT4_I(inode)->i_mmap_sem);
-
- if (IS_ERR(handle))
- result = VM_FAULT_SIGBUS;
- else {
- result = dax_iomap_pmd_fault(vma, addr, pmd, flags,
- &ext4_iomap_ops);
}
-
- if (write) {
- if (!IS_ERR(handle))
- ext4_journal_stop(handle);
- up_read(&EXT4_I(inode)->i_mmap_sem);
+ down_read(&EXT4_I(inode)->i_mmap_sem);
+ result = dax_iomap_pmd_fault(vma, addr, pmd, flags,
+ &ext4_iomap_ops);
+ up_read(&EXT4_I(inode)->i_mmap_sem);
+ if (write)
sb_end_pagefault(sb);
- } else
- up_read(&EXT4_I(inode)->i_mmap_sem);
return result;
}
diff --git a/include/linux/dax.h b/include/linux/dax.h
index f97bcfe..24ad711 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -41,6 +41,9 @@
int dax_iomap_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
struct iomap_ops *ops);
int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index);
+int dax_invalidate_mapping_entry(struct address_space *mapping, pgoff_t index);
+int dax_invalidate_mapping_entry_sync(struct address_space *mapping,
+ pgoff_t index);
void dax_wake_mapping_entry_waiter(struct address_space *mapping,
pgoff_t index, void *entry, bool wake_all);
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index e0341af..76f3975 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -146,15 +146,6 @@
DISK_EVENT_EJECT_REQUEST = 1 << 1, /* eject requested */
};
-#define BLK_SCSI_MAX_CMDS (256)
-#define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
-
-struct blk_scsi_cmd_filter {
- unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
- unsigned long write_ok[BLK_SCSI_CMD_PER_LONG];
- struct kobject kobj;
-};
-
struct disk_part_tbl {
struct rcu_head rcu_head;
int len;
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index c56b398..6b5818d 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -73,13 +73,13 @@
*/
enum pageflags {
PG_locked, /* Page is locked. Don't touch. */
- PG_waiters, /* Page has waiters, check its waitqueue */
PG_error,
PG_referenced,
PG_uptodate,
PG_dirty,
PG_lru,
PG_active,
+ PG_waiters, /* Page has waiters, check its waitqueue. Must be bit #7 and in the same byte as "PG_locked" */
PG_slab,
PG_owner_priv_1, /* Owner use. If pagecache, fs may use*/
PG_arch_1,
diff --git a/mm/filemap.c b/mm/filemap.c
index 82f26cd..d0e4d10 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -912,6 +912,29 @@
}
EXPORT_SYMBOL_GPL(add_page_wait_queue);
+#ifndef clear_bit_unlock_is_negative_byte
+
+/*
+ * PG_waiters is the high bit in the same byte as PG_lock.
+ *
+ * On x86 (and on many other architectures), we can clear PG_lock and
+ * test the sign bit at the same time. But if the architecture does
+ * not support that special operation, we just do this all by hand
+ * instead.
+ *
+ * The read of PG_waiters has to be after (or concurrently with) PG_locked
+ * being cleared, but a memory barrier should be unneccssary since it is
+ * in the same byte as PG_locked.
+ */
+static inline bool clear_bit_unlock_is_negative_byte(long nr, volatile void *mem)
+{
+ clear_bit_unlock(nr, mem);
+ /* smp_mb__after_atomic(); */
+ return test_bit(PG_waiters, mem);
+}
+
+#endif
+
/**
* unlock_page - unlock a locked page
* @page: the page
@@ -921,16 +944,19 @@
* mechanism between PageLocked pages and PageWriteback pages is shared.
* But that's OK - sleepers in wait_on_page_writeback() just go back to sleep.
*
- * The mb is necessary to enforce ordering between the clear_bit and the read
- * of the waitqueue (to avoid SMP races with a parallel wait_on_page_locked()).
+ * Note that this depends on PG_waiters being the sign bit in the byte
+ * that contains PG_locked - thus the BUILD_BUG_ON(). That allows us to
+ * clear the PG_locked bit and test PG_waiters at the same time fairly
+ * portably (architectures that do LL/SC can test any bit, while x86 can
+ * test the sign bit).
*/
void unlock_page(struct page *page)
{
+ BUILD_BUG_ON(PG_waiters != 7);
page = compound_head(page);
VM_BUG_ON_PAGE(!PageLocked(page), page);
- clear_bit_unlock(PG_locked, &page->flags);
- smp_mb__after_atomic();
- wake_up_page(page, PG_locked);
+ if (clear_bit_unlock_is_negative_byte(PG_locked, &page->flags))
+ wake_up_page_bit(page, PG_locked);
}
EXPORT_SYMBOL(unlock_page);
diff --git a/mm/truncate.c b/mm/truncate.c
index fd97f1d..dd7b24e 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -24,20 +24,12 @@
#include <linux/rmap.h>
#include "internal.h"
-static void clear_exceptional_entry(struct address_space *mapping,
- pgoff_t index, void *entry)
+static void clear_shadow_entry(struct address_space *mapping, pgoff_t index,
+ void *entry)
{
struct radix_tree_node *node;
void **slot;
- /* Handled by shmem itself */
- if (shmem_mapping(mapping))
- return;
-
- if (dax_mapping(mapping)) {
- dax_delete_mapping_entry(mapping, index);
- return;
- }
spin_lock_irq(&mapping->tree_lock);
/*
* Regular page slots are stabilized by the page lock even
@@ -55,6 +47,56 @@
spin_unlock_irq(&mapping->tree_lock);
}
+/*
+ * Unconditionally remove exceptional entry. Usually called from truncate path.
+ */
+static void truncate_exceptional_entry(struct address_space *mapping,
+ pgoff_t index, void *entry)
+{
+ /* Handled by shmem itself */
+ if (shmem_mapping(mapping))
+ return;
+
+ if (dax_mapping(mapping)) {
+ dax_delete_mapping_entry(mapping, index);
+ return;
+ }
+ clear_shadow_entry(mapping, index, entry);
+}
+
+/*
+ * Invalidate exceptional entry if easily possible. This handles exceptional
+ * entries for invalidate_inode_pages() so for DAX it evicts only unlocked and
+ * clean entries.
+ */
+static int invalidate_exceptional_entry(struct address_space *mapping,
+ pgoff_t index, void *entry)
+{
+ /* Handled by shmem itself */
+ if (shmem_mapping(mapping))
+ return 1;
+ if (dax_mapping(mapping))
+ return dax_invalidate_mapping_entry(mapping, index);
+ clear_shadow_entry(mapping, index, entry);
+ return 1;
+}
+
+/*
+ * Invalidate exceptional entry if clean. This handles exceptional entries for
+ * invalidate_inode_pages2() so for DAX it evicts only clean entries.
+ */
+static int invalidate_exceptional_entry2(struct address_space *mapping,
+ pgoff_t index, void *entry)
+{
+ /* Handled by shmem itself */
+ if (shmem_mapping(mapping))
+ return 1;
+ if (dax_mapping(mapping))
+ return dax_invalidate_mapping_entry_sync(mapping, index);
+ clear_shadow_entry(mapping, index, entry);
+ return 1;
+}
+
/**
* do_invalidatepage - invalidate part or all of a page
* @page: the page which is affected
@@ -262,7 +304,8 @@
break;
if (radix_tree_exceptional_entry(page)) {
- clear_exceptional_entry(mapping, index, page);
+ truncate_exceptional_entry(mapping, index,
+ page);
continue;
}
@@ -351,7 +394,8 @@
}
if (radix_tree_exceptional_entry(page)) {
- clear_exceptional_entry(mapping, index, page);
+ truncate_exceptional_entry(mapping, index,
+ page);
continue;
}
@@ -470,7 +514,8 @@
break;
if (radix_tree_exceptional_entry(page)) {
- clear_exceptional_entry(mapping, index, page);
+ invalidate_exceptional_entry(mapping, index,
+ page);
continue;
}
@@ -592,7 +637,9 @@
break;
if (radix_tree_exceptional_entry(page)) {
- clear_exceptional_entry(mapping, index, page);
+ if (!invalidate_exceptional_entry2(mapping,
+ index, page))
+ ret = -EBUSY;
continue;
}
diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h
index 950fd2e..12262c0 100644
--- a/scripts/gcc-plugins/gcc-common.h
+++ b/scripts/gcc-plugins/gcc-common.h
@@ -39,6 +39,9 @@
#include "hash-map.h"
#endif
+#if BUILDING_GCC_VERSION >= 7000
+#include "memmodel.h"
+#endif
#include "emit-rtl.h"
#include "debug.h"
#include "target.h"
@@ -91,6 +94,9 @@
#include "tree-ssa-alias.h"
#include "tree-ssa.h"
#include "stringpool.h"
+#if BUILDING_GCC_VERSION >= 7000
+#include "tree-vrp.h"
+#endif
#include "tree-ssanames.h"
#include "print-tree.h"
#include "tree-eh.h"
@@ -287,6 +293,22 @@
return NULL;
}
+static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
+{
+ cgraph_node_ptr alias;
+
+ if (callback(node, data))
+ return true;
+
+ for (alias = node->same_body; alias; alias = alias->next) {
+ if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
+ if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
+ return true;
+ }
+
+ return false;
+}
+
#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
for ((node) = cgraph_first_function_with_gimple_body(); (node); \
(node) = cgraph_next_function_with_gimple_body(node))
@@ -399,6 +421,7 @@
typedef union gimple_statement_d gcall;
typedef union gimple_statement_d gcond;
typedef union gimple_statement_d gdebug;
+typedef union gimple_statement_d ggoto;
typedef union gimple_statement_d gphi;
typedef union gimple_statement_d greturn;
@@ -452,6 +475,16 @@
return stmt;
}
+static inline ggoto *as_a_ggoto(gimple stmt)
+{
+ return stmt;
+}
+
+static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
+{
+ return stmt;
+}
+
static inline gphi *as_a_gphi(gimple stmt)
{
return stmt;
@@ -496,6 +529,14 @@
typedef struct rtx_def rtx_insn;
+static inline const char *get_decl_section_name(const_tree decl)
+{
+ if (DECL_SECTION_NAME(decl) == NULL_TREE)
+ return NULL;
+
+ return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
+}
+
static inline void set_decl_section_name(tree node, const char *value)
{
if (value)
@@ -511,6 +552,7 @@
typedef struct gimple_statement_call gcall;
typedef struct gimple_statement_base gcond;
typedef struct gimple_statement_base gdebug;
+typedef struct gimple_statement_base ggoto;
typedef struct gimple_statement_phi gphi;
typedef struct gimple_statement_base greturn;
@@ -564,6 +606,16 @@
return stmt;
}
+static inline ggoto *as_a_ggoto(gimple stmt)
+{
+ return stmt;
+}
+
+static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
+{
+ return stmt;
+}
+
static inline gphi *as_a_gphi(gimple stmt)
{
return as_a<gphi>(stmt);
@@ -611,6 +663,11 @@
#define INSN_DELETED_P(insn) (insn)->deleted()
+static inline const char *get_decl_section_name(const_tree decl)
+{
+ return DECL_SECTION_NAME(decl);
+}
+
/* symtab/cgraph related */
#define debug_cgraph_node(node) (node)->debug()
#define cgraph_get_node(decl) cgraph_node::get(decl)
@@ -619,6 +676,7 @@
#define cgraph_n_nodes symtab->cgraph_count
#define cgraph_max_uid symtab->cgraph_max_uid
#define varpool_get_node(decl) varpool_node::get(decl)
+#define dump_varpool_node(file, node) (node)->dump(file)
#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
(caller)->create_edge((callee), (call_stmt), (count), (freq))
@@ -674,6 +732,11 @@
return node->get_alias_target();
}
+static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
+{
+ return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
+}
+
static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
{
return symtab->add_cgraph_insertion_hook(hook, data);
@@ -731,6 +794,13 @@
template <>
template <>
+inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
+{
+ return gs->code == GIMPLE_GOTO;
+}
+
+template <>
+template <>
inline bool is_a_helper<const greturn *>::test(const_gimple gs)
{
return gs->code == GIMPLE_RETURN;
@@ -766,6 +836,16 @@
return as_a<const gcall *>(stmt);
}
+static inline ggoto *as_a_ggoto(gimple stmt)
+{
+ return as_a<ggoto *>(stmt);
+}
+
+static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
+{
+ return as_a<const ggoto *>(stmt);
+}
+
static inline gphi *as_a_gphi(gimple stmt)
{
return as_a<gphi *>(stmt);
@@ -828,4 +908,9 @@
#define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
#endif
+#if BUILDING_GCC_VERSION >= 7000
+#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning) \
+ get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
+#endif
+
#endif
diff --git a/scripts/gcc-plugins/latent_entropy_plugin.c b/scripts/gcc-plugins/latent_entropy_plugin.c
index 1254112..8ff203a 100644
--- a/scripts/gcc-plugins/latent_entropy_plugin.c
+++ b/scripts/gcc-plugins/latent_entropy_plugin.c
@@ -328,9 +328,9 @@
op = LROTATE_EXPR;
/*
* This code limits the value of random_const to
- * the size of a wide int for the rotation
+ * the size of a long for the rotation
*/
- random_const &= HOST_BITS_PER_WIDE_INT - 1;
+ random_const %= TYPE_PRECISION(long_unsigned_type_node);
break;
}
