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-rw-r--r--Documentation/sysctl/vm.txt16
-rw-r--r--arch/arm64/kernel/ftrace.c9
-rw-r--r--arch/arm64/mm/init.c2
-rw-r--r--arch/x86/events/intel/cstate.c10
-rw-r--r--crypto/lrw.c6
-rw-r--r--crypto/xts.c6
-rw-r--r--drivers/block/zram/zram_drv.c5
-rw-r--r--drivers/gpio/gpio-eic-sprd.c1
-rw-r--r--drivers/gpio/gpiolib.c12
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-hdmi.c16
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c6
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c6
-rw-r--r--drivers/gpu/drm/imx/ipuv3-crtc.c2
-rw-r--r--drivers/gpu/drm/scheduler/sched_main.c3
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_drv.c9
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c10
-rw-r--r--drivers/gpu/drm/ttm/ttm_memory.c5
-rw-r--r--drivers/gpu/drm/vc4/vc4_crtc.c2
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c33
-rw-r--r--drivers/gpu/ipu-v3/ipu-dp.c12
-rw-r--r--drivers/net/slip/slhc.c2
-rw-r--r--fs/btrfs/file-item.c15
-rw-r--r--fs/btrfs/ordered-data.c3
-rw-r--r--fs/ceph/dir.c6
-rw-r--r--fs/ceph/inode.c16
-rw-r--r--fs/ceph/mds_client.c70
-rw-r--r--fs/ceph/snap.c7
-rw-r--r--fs/cifs/file.c15
-rw-r--r--fs/cifs/inode.c4
-rw-r--r--fs/cifs/misc.c23
-rw-r--r--fs/cifs/smb2pdu.c1
-rw-r--r--fs/proc/proc_sysctl.c6
-rw-r--r--fs/splice.c4
-rw-r--r--include/drm/ttm/ttm_bo_driver.h1
-rw-r--r--include/linux/pipe_fs_i.h1
-rw-r--r--kernel/trace/ring_buffer.c2
-rw-r--r--kernel/trace/trace.c35
-rw-r--r--lib/Kconfig.debug1
-rw-r--r--lib/test_vmalloc.c6
-rw-r--r--mm/memory_hotplug.c1
-rw-r--r--mm/page_alloc.c27
41 files changed, 274 insertions, 143 deletions
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index 6af24cdb25cc..3f13d8599337 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -866,14 +866,14 @@ The intent is that compaction has less work to do in the future and to
increase the success rate of future high-order allocations such as SLUB
allocations, THP and hugetlbfs pages.
-To make it sensible with respect to the watermark_scale_factor parameter,
-the unit is in fractions of 10,000. The default value of 15,000 means
-that up to 150% of the high watermark will be reclaimed in the event of
-a pageblock being mixed due to fragmentation. The level of reclaim is
-determined by the number of fragmentation events that occurred in the
-recent past. If this value is smaller than a pageblock then a pageblocks
-worth of pages will be reclaimed (e.g. 2MB on 64-bit x86). A boost factor
-of 0 will disable the feature.
+To make it sensible with respect to the watermark_scale_factor
+parameter, the unit is in fractions of 10,000. The default value of
+15,000 on !DISCONTIGMEM configurations means that up to 150% of the high
+watermark will be reclaimed in the event of a pageblock being mixed due
+to fragmentation. The level of reclaim is determined by the number of
+fragmentation events that occurred in the recent past. If this value is
+smaller than a pageblock then a pageblocks worth of pages will be reclaimed
+(e.g. 2MB on 64-bit x86). A boost factor of 0 will disable the feature.
=============================================================
diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c
index 07b298120182..65a51331088e 100644
--- a/arch/arm64/kernel/ftrace.c
+++ b/arch/arm64/kernel/ftrace.c
@@ -103,10 +103,15 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
* to be revisited if support for multiple ftrace entry points
* is added in the future, but for now, the pr_err() below
* deals with a theoretical issue only.
+ *
+ * Note that PLTs are place relative, and plt_entries_equal()
+ * checks whether they point to the same target. Here, we need
+ * to check if the actual opcodes are in fact identical,
+ * regardless of the offset in memory so use memcmp() instead.
*/
trampoline = get_plt_entry(addr, mod->arch.ftrace_trampoline);
- if (!plt_entries_equal(mod->arch.ftrace_trampoline,
- &trampoline)) {
+ if (memcmp(mod->arch.ftrace_trampoline, &trampoline,
+ sizeof(trampoline))) {
if (plt_entry_is_initialized(mod->arch.ftrace_trampoline)) {
pr_err("ftrace: far branches to multiple entry points unsupported inside a single module\n");
return -EINVAL;
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 6bc135042f5e..7cae155e81a5 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -363,7 +363,7 @@ void __init arm64_memblock_init(void)
* Otherwise, this is a no-op
*/
u64 base = phys_initrd_start & PAGE_MASK;
- u64 size = PAGE_ALIGN(phys_initrd_size);
+ u64 size = PAGE_ALIGN(phys_initrd_start + phys_initrd_size) - base;
/*
* We can only add back the initrd memory if we don't end up
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 94a4b7fc75d0..d41de9af7a39 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -76,15 +76,15 @@
* Scope: Package (physical package)
* MSR_PKG_C8_RESIDENCY: Package C8 Residency Counter.
* perf code: 0x04
- * Available model: HSW ULT,CNL
+ * Available model: HSW ULT,KBL,CNL
* Scope: Package (physical package)
* MSR_PKG_C9_RESIDENCY: Package C9 Residency Counter.
* perf code: 0x05
- * Available model: HSW ULT,CNL
+ * Available model: HSW ULT,KBL,CNL
* Scope: Package (physical package)
* MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter.
* perf code: 0x06
- * Available model: HSW ULT,GLM,CNL
+ * Available model: HSW ULT,KBL,GLM,CNL
* Scope: Package (physical package)
*
*/
@@ -566,8 +566,8 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_DESKTOP, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_X, snb_cstates),
- X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE, snb_cstates),
- X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, snb_cstates),
+ X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE, hswult_cstates),
+ X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, hswult_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_CANNONLAKE_MOBILE, cnl_cstates),
diff --git a/crypto/lrw.c b/crypto/lrw.c
index 0430ccd08728..08a0e458bc3e 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -212,8 +212,12 @@ static void crypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
- if (!err)
+ if (!err) {
+ struct rctx *rctx = skcipher_request_ctx(req);
+
+ rctx->subreq.base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = xor_tweak_post(req);
+ }
skcipher_request_complete(req, err);
}
diff --git a/crypto/xts.c b/crypto/xts.c
index 847f54f76789..2f948328cabb 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -137,8 +137,12 @@ static void crypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
- if (!err)
+ if (!err) {
+ struct rctx *rctx = skcipher_request_ctx(req);
+
+ rctx->subreq.base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = xor_tweak_post(req);
+ }
skcipher_request_complete(req, err);
}
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 399cad7daae7..d58a359a6622 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -774,18 +774,18 @@ struct zram_work {
struct zram *zram;
unsigned long entry;
struct bio *bio;
+ struct bio_vec bvec;
};
#if PAGE_SIZE != 4096
static void zram_sync_read(struct work_struct *work)
{
- struct bio_vec bvec;
struct zram_work *zw = container_of(work, struct zram_work, work);
struct zram *zram = zw->zram;
unsigned long entry = zw->entry;
struct bio *bio = zw->bio;
- read_from_bdev_async(zram, &bvec, entry, bio);
+ read_from_bdev_async(zram, &zw->bvec, entry, bio);
}
/*
@@ -798,6 +798,7 @@ static int read_from_bdev_sync(struct zram *zram, struct bio_vec *bvec,
{
struct zram_work work;
+ work.bvec = *bvec;
work.zram = zram;
work.entry = entry;
work.bio = bio;
diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index f0223cee9774..77092268ee95 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -414,6 +414,7 @@ static int sprd_eic_irq_set_type(struct irq_data *data, unsigned int flow_type)
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_EDGE_BOTH:
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 0495bf1d480a..bca3e7740ef6 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1379,7 +1379,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
status = gpiochip_add_irqchip(chip, lock_key, request_key);
if (status)
- goto err_remove_chip;
+ goto err_free_gpiochip_mask;
status = of_gpiochip_add(chip);
if (status)
@@ -1387,7 +1387,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
status = gpiochip_init_valid_mask(chip);
if (status)
- goto err_remove_chip;
+ goto err_remove_of_chip;
for (i = 0; i < chip->ngpio; i++) {
struct gpio_desc *desc = &gdev->descs[i];
@@ -1415,14 +1415,18 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
if (gpiolib_initialized) {
status = gpiochip_setup_dev(gdev);
if (status)
- goto err_remove_chip;
+ goto err_remove_acpi_chip;
}
return 0;
-err_remove_chip:
+err_remove_acpi_chip:
acpi_gpiochip_remove(chip);
+err_remove_of_chip:
gpiochip_free_hogs(chip);
of_gpiochip_remove(chip);
+err_remove_chip:
+ gpiochip_irqchip_remove(chip);
+err_free_gpiochip_mask:
gpiochip_free_valid_mask(chip);
err_remove_irqchip_mask:
gpiochip_irqchip_free_valid_mask(chip);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index db761329a1e3..ab7968c8f6a2 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1046,6 +1046,10 @@ static bool dw_hdmi_support_scdc(struct dw_hdmi *hdmi)
if (hdmi->version < 0x200a)
return false;
+ /* Disable if no DDC bus */
+ if (!hdmi->ddc)
+ return false;
+
/* Disable if SCDC is not supported, or if an HF-VSDB block is absent */
if (!display->hdmi.scdc.supported ||
!display->hdmi.scdc.scrambling.supported)
@@ -1684,13 +1688,13 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
* Source Devices compliant shall set the
* Source Version = 1.
*/
- drm_scdc_readb(&hdmi->i2c->adap, SCDC_SINK_VERSION,
+ drm_scdc_readb(hdmi->ddc, SCDC_SINK_VERSION,
&bytes);
- drm_scdc_writeb(&hdmi->i2c->adap, SCDC_SOURCE_VERSION,
+ drm_scdc_writeb(hdmi->ddc, SCDC_SOURCE_VERSION,
min_t(u8, bytes, SCDC_MIN_SOURCE_VERSION));
/* Enabled Scrambling in the Sink */
- drm_scdc_set_scrambling(&hdmi->i2c->adap, 1);
+ drm_scdc_set_scrambling(hdmi->ddc, 1);
/*
* To activate the scrambler feature, you must ensure
@@ -1706,7 +1710,7 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
hdmi_writeb(hdmi, 0, HDMI_FC_SCRAMBLER_CTRL);
hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ,
HDMI_MC_SWRSTZ);
- drm_scdc_set_scrambling(&hdmi->i2c->adap, 0);
+ drm_scdc_set_scrambling(hdmi->ddc, 0);
}
}
@@ -1800,6 +1804,8 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
* iteration for others.
* The Amlogic Meson GX SoCs (v2.01a) have been identified as needing
* the workaround with a single iteration.
+ * The Rockchip RK3288 SoC (v2.00a) and RK3328/RK3399 SoCs (v2.11a) have
+ * been identified as needing the workaround with a single iteration.
*/
switch (hdmi->version) {
@@ -1808,7 +1814,9 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
break;
case 0x131a:
case 0x132a:
+ case 0x200a:
case 0x201a:
+ case 0x211a:
case 0x212a:
count = 1;
break;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index ab4e60dfd6a3..98cea1f4b3bf 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3862,14 +3862,16 @@ static int intel_ddi_compute_config(struct intel_encoder *encoder,
ret = intel_hdmi_compute_config(encoder, pipe_config, conn_state);
else
ret = intel_dp_compute_config(encoder, pipe_config, conn_state);
+ if (ret)
+ return ret;
- if (IS_GEN9_LP(dev_priv) && ret)
+ if (IS_GEN9_LP(dev_priv))
pipe_config->lane_lat_optim_mask =
bxt_ddi_phy_calc_lane_lat_optim_mask(pipe_config->lane_count);
intel_ddi_compute_min_voltage_level(dev_priv, pipe_config);
- return ret;
+ return 0;
}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 8891f29a8c7f..48da4a969a0a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1886,6 +1886,9 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
int pipe_bpp;
int ret;
+ pipe_config->fec_enable = !intel_dp_is_edp(intel_dp) &&
+ intel_dp_supports_fec(intel_dp, pipe_config);
+
if (!intel_dp_supports_dsc(intel_dp, pipe_config))
return -EINVAL;
@@ -2116,9 +2119,6 @@ intel_dp_compute_config(struct intel_encoder *encoder,
if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK)
return -EINVAL;
- pipe_config->fec_enable = !intel_dp_is_edp(intel_dp) &&
- intel_dp_supports_fec(intel_dp, pipe_config);
-
ret = intel_dp_compute_link_config(encoder, pipe_config, conn_state);
if (ret < 0)
return ret;
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index ec3602ebbc1c..54011df8c2e8 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -71,7 +71,7 @@ static void ipu_crtc_disable_planes(struct ipu_crtc *ipu_crtc,
if (disable_partial)
ipu_plane_disable(ipu_crtc->plane[1], true);
if (disable_full)
- ipu_plane_disable(ipu_crtc->plane[0], false);
+ ipu_plane_disable(ipu_crtc->plane[0], true);
}
static void ipu_crtc_atomic_disable(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 19fc601c9eeb..a1bec2779e76 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -366,10 +366,9 @@ void drm_sched_increase_karma(struct drm_sched_job *bad)
EXPORT_SYMBOL(drm_sched_increase_karma);
/**
- * drm_sched_hw_job_reset - stop the scheduler if it contains the bad job
+ * drm_sched_stop - stop the scheduler
*
* @sched: scheduler instance
- * @bad: bad scheduler job
*
*/
void drm_sched_stop(struct drm_gpu_scheduler *sched)
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 3ebd9f5e2719..29258b404e54 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -16,6 +16,7 @@
#include <linux/of_reserved_mem.h>
#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem_cma_helper.h>
@@ -85,6 +86,8 @@ static int sun4i_drv_bind(struct device *dev)
ret = -ENOMEM;
goto free_drm;
}
+
+ dev_set_drvdata(dev, drm);
drm->dev_private = drv;
INIT_LIST_HEAD(&drv->frontend_list);
INIT_LIST_HEAD(&drv->engine_list);
@@ -144,8 +147,12 @@ static void sun4i_drv_unbind(struct device *dev)
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
+ drm_atomic_helper_shutdown(drm);
drm_mode_config_cleanup(drm);
+
+ component_unbind_all(dev, NULL);
of_reserved_mem_device_release(dev);
+
drm_dev_put(drm);
}
@@ -395,6 +402,8 @@ static int sun4i_drv_probe(struct platform_device *pdev)
static int sun4i_drv_remove(struct platform_device *pdev)
{
+ component_master_del(&pdev->dev, &sun4i_drv_master_ops);
+
return 0;
}
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 0fa5034b9f9e..1a01669b159a 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -49,9 +49,8 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj);
* ttm_global_mutex - protecting the global BO state
*/
DEFINE_MUTEX(ttm_global_mutex);
-struct ttm_bo_global ttm_bo_glob = {
- .use_count = 0
-};
+unsigned ttm_bo_glob_use_count;
+struct ttm_bo_global ttm_bo_glob;
static struct attribute ttm_bo_count = {
.name = "bo_count",
@@ -1531,12 +1530,13 @@ static void ttm_bo_global_release(void)
struct ttm_bo_global *glob = &ttm_bo_glob;
mutex_lock(&ttm_global_mutex);
- if (--glob->use_count > 0)
+ if (--ttm_bo_glob_use_count > 0)
goto out;
kobject_del(&glob->kobj);
kobject_put(&glob->kobj);
ttm_mem_global_release(&ttm_mem_glob);
+ memset(glob, 0, sizeof(*glob));
out:
mutex_unlock(&ttm_global_mutex);
}
@@ -1548,7 +1548,7 @@ static int ttm_bo_global_init(void)
unsigned i;
mutex_lock(&ttm_global_mutex);
- if (++glob->use_count > 1)
+ if (++ttm_bo_glob_use_count > 1)
goto out;
ret = ttm_mem_global_init(&ttm_mem_glob);
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index f1567c353b54..9a0909decb36 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -461,8 +461,8 @@ out_no_zone:
void ttm_mem_global_release(struct ttm_mem_global *glob)
{
- unsigned int i;
struct ttm_mem_zone *zone;
+ unsigned int i;
/* let the page allocator first stop the shrink work. */
ttm_page_alloc_fini();
@@ -475,9 +475,10 @@ void ttm_mem_global_release(struct ttm_mem_global *glob)
zone = glob->zones[i];
kobject_del(&zone->kobj);
kobject_put(&zone->kobj);
- }
+ }
kobject_del(&glob->kobj);
kobject_put(&glob->kobj);
+ memset(glob, 0, sizeof(*glob));
}
static void ttm_check_swapping(struct ttm_mem_global *glob)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 730008d3da76..1baa10e94484 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -1042,7 +1042,7 @@ static void
vc4_crtc_reset(struct drm_crtc *crtc)
{
if (crtc->state)
- __drm_atomic_helper_crtc_destroy_state(crtc->state);
+ vc4_crtc_destroy_state(crtc, crtc->state);
crtc->state = kzalloc(sizeof(struct vc4_crtc_state), GFP_KERNEL);
if (crtc->state)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 6165fe2c4504..1bfa353d995c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -546,29 +546,13 @@ static void vmw_get_initial_size(struct vmw_private *dev_priv)
}
/**
- * vmw_assume_iommu - Figure out whether coherent dma-remapping might be
- * taking place.
- * @dev: Pointer to the struct drm_device.
- *
- * Return: true if iommu present, false otherwise.
- */
-static bool vmw_assume_iommu(struct drm_device *dev)
-{
- const struct dma_map_ops *ops = get_dma_ops(dev->dev);
-
- return !dma_is_direct(ops) && ops &&
- ops->map_page != dma_direct_map_page;
-}
-
-/**
* vmw_dma_select_mode - Determine how DMA mappings should be set up for this
* system.
*
* @dev_priv: Pointer to a struct vmw_private
*
- * This functions tries to determine the IOMMU setup and what actions
- * need to be taken by the driver to make system pages visible to the
- * device.
+ * This functions tries to determine what actions need to be taken by the
+ * driver to make system pages visible to the device.
* If this function decides that DMA is not possible, it returns -EINVAL.
* The driver may then try to disable features of the device that require
* DMA.
@@ -578,23 +562,16 @@ static int vmw_dma_select_mode(struct vmw_private *dev_priv)
static const char *names[vmw_dma_map_max] = {
[vmw_dma_phys] = "Using physical TTM page addresses.",
[vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
- [vmw_dma_map_populate] = "Keeping DMA mappings.",
+ [vmw_dma_map_populate] = "Caching DMA mappings.",
[vmw_dma_map_bind] = "Giving up DMA mappings early."};
if (vmw_force_coherent)
dev_priv->map_mode = vmw_dma_alloc_coherent;
- else if (vmw_assume_iommu(dev_priv->dev))
- dev_priv->map_mode = vmw_dma_map_populate;
- else if (!vmw_force_iommu)
- dev_priv->map_mode = vmw_dma_phys;
- else if (IS_ENABLED(CONFIG_SWIOTLB) && swiotlb_nr_tbl())
- dev_priv->map_mode = vmw_dma_alloc_coherent;
+ else if (vmw_restrict_iommu)
+ dev_priv->map_mode = vmw_dma_map_bind;
else
dev_priv->map_mode = vmw_dma_map_populate;
- if (dev_priv->map_mode == vmw_dma_map_populate && vmw_restrict_iommu)
- dev_priv->map_mode = vmw_dma_map_bind;
-
/* No TTM coherent page pool? FIXME: Ask TTM instead! */
if (!(IS_ENABLED(CONFIG_SWIOTLB) || IS_ENABLED(CONFIG_INTEL_IOMMU)) &&
(dev_priv->map_mode == vmw_dma_alloc_coherent))
diff --git a/drivers/gpu/ipu-v3/ipu-dp.c b/drivers/gpu/ipu-v3/ipu-dp.c
index 9b2b3fa479c4..5e44ff1f2085 100644
--- a/drivers/gpu/ipu-v3/ipu-dp.c
+++ b/drivers/gpu/ipu-v3/ipu-dp.c
@@ -195,7 +195,8 @@ int ipu_dp_setup_channel(struct ipu_dp *dp,
ipu_dp_csc_init(flow, flow->foreground.in_cs, flow->out_cs,
DP_COM_CONF_CSC_DEF_BOTH);
} else {
- if (flow->foreground.in_cs == flow->out_cs)
+ if (flow->foreground.in_cs == IPUV3_COLORSPACE_UNKNOWN ||
+ flow->foreground.in_cs == flow->out_cs)
/*
* foreground identical to output, apply color
* conversion on background
@@ -261,6 +262,8 @@ void ipu_dp_disable_channel(struct ipu_dp *dp, bool sync)
struct ipu_dp_priv *priv = flow->priv;
u32 reg, csc;
+ dp->in_cs = IPUV3_COLORSPACE_UNKNOWN;
+
if (!dp->foreground)
return;
@@ -268,8 +271,9 @@ void ipu_dp_disable_channel(struct ipu_dp *dp, bool sync)
reg = readl(flow->base + DP_COM_CONF);
csc = reg & DP_COM_CONF_CSC_DEF_MASK;
- if (csc == DP_COM_CONF_CSC_DEF_FG)
- reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+ reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+ if (csc == DP_COM_CONF_CSC_DEF_BOTH || csc == DP_COM_CONF_CSC_DEF_BG)
+ reg |= DP_COM_CONF_CSC_DEF_BG;
reg &= ~DP_COM_CONF_FG_EN;
writel(reg, flow->base + DP_COM_CONF);
@@ -347,6 +351,8 @@ int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base)
mutex_init(&priv->mutex);
for (i = 0; i < IPUV3_NUM_FLOWS; i++) {
+ priv->flow[i].background.in_cs = IPUV3_COLORSPACE_UNKNOWN;
+ priv->flow[i].foreground.in_cs = IPUV3_COLORSPACE_UNKNOWN;
priv->flow[i].foreground.foreground = true;
priv->flow[i].base = priv->base + ipu_dp_flow_base[i];
priv->flow[i].priv = priv;
diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
index f4e93f5fc204..ea90db3c7705 100644
--- a/drivers/net/slip/slhc.c
+++ b/drivers/net/slip/slhc.c
@@ -153,7 +153,7 @@ out_fail:
void
slhc_free(struct slcompress *comp)
{
- if ( comp == NULLSLCOMPR )
+ if ( IS_ERR_OR_NULL(comp) )
return;
if ( comp->tstate != NULLSLSTATE )
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 920bf3b4b0ef..cccc75d15970 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -7,6 +7,7 @@
#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/highmem.h>
+#include <linux/sched/mm.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
@@ -427,9 +428,13 @@ blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio,
unsigned long this_sum_bytes = 0;
int i;
u64 offset;
+ unsigned nofs_flag;
+
+ nofs_flag = memalloc_nofs_save();
+ sums = kvzalloc(btrfs_ordered_sum_size(fs_info, bio->bi_iter.bi_size),
+ GFP_KERNEL);
+ memalloc_nofs_restore(nofs_flag);
- sums = kzalloc(btrfs_ordered_sum_size(fs_info, bio->bi_iter.bi_size),
- GFP_NOFS);
if (!sums)
return BLK_STS_RESOURCE;
@@ -472,8 +477,10 @@ blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio,
bytes_left = bio->bi_iter.bi_size - total_bytes;
- sums = kzalloc(btrfs_ordered_sum_size(fs_info, bytes_left),
- GFP_NOFS);
+ nofs_flag = memalloc_nofs_save();
+ sums = kvzalloc(btrfs_ordered_sum_size(fs_info,
+ bytes_left), GFP_KERNEL);
+ memalloc_nofs_restore(nofs_flag);
BUG_ON(!sums); /* -ENOMEM */
sums->len = bytes_left;
ordered = btrfs_lookup_ordered_extent(inode,
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 6fde2b2741ef..45e3cfd1198b 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -6,6 +6,7 @@
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/writeback.h>
+#include <linux/sched/mm.h>
#include "ctree.h"
#include "transaction.h"
#include "btrfs_inode.h"
@@ -442,7 +443,7 @@ void btrfs_put_ordered_extent(struct btrfs_ordered_extent *entry)
cur = entry->list.next;
sum = list_entry(cur, struct btrfs_ordered_sum, list);
list_del(&sum->list);
- kfree(sum);
+ kvfree(sum);
}
kmem_cache_free(btrfs_ordered_extent_cache, entry);
}
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index a8f429882249..0637149fb9f9 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1766,6 +1766,7 @@ static ssize_t ceph_read_dir(struct file *file, char __user *buf, size_t size,
unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn)
{
struct ceph_inode_info *dci = ceph_inode(dir);
+ unsigned hash;
switch (dci->i_dir_layout.dl_dir_hash) {
case 0: /* for backward compat */
@@ -1773,8 +1774,11 @@ unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn)
return dn->d_name.hash;
default:
- return ceph_str_hash(dci->i_dir_layout.dl_dir_hash,
+ spin_lock(&dn->d_lock);
+ hash = ceph_str_hash(dci->i_dir_layout.dl_dir_hash,
dn->d_name.name, dn->d_name.len);
+ spin_unlock(&dn->d_lock);
+ return hash;
}
}
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 2d61ddda9bf5..c2feb310ac1e 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1163,6 +1163,19 @@ static int splice_dentry(struct dentry **pdn, struct inode *in)
return 0;
}
+static int d_name_cmp(struct dentry *dentry, const char *name, size_t len)
+{
+ int ret;
+
+ /* take d_lock to ensure dentry->d_name stability */
+ spin_lock(&dentry->d_lock);
+ ret = dentry->d_name.len - len;
+ if (!ret)
+ ret = memcmp(dentry->d_name.name, name, len);
+ spin_unlock(&dentry->d_lock);
+ return ret;
+}
+
/*
* Incorporate results into the local cache. This is either just
* one inode, or a directory, dentry, and possibly linked-to inode (e.g.,
@@ -1412,7 +1425,8 @@ retry_lookup:
err = splice_dentry(&req->r_dentry, in);
if (err < 0)
goto done;
- } else if (rinfo->head->is_dentry) {
+ } else if (rinfo->head->is_dentry &&
+ !d_name_cmp(req->r_dentry, rinfo->dname, rinfo->dname_len)) {
struct ceph_vino *ptvino = NULL;
if ((le32_to_cpu(rinfo->diri.in->cap.caps) & CEPH_CAP_FILE_SHARED) ||
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 21c33ed048ed..9049c2a3e972 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1414,6 +1414,15 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
list_add(&ci->i_prealloc_cap_flush->i_list, &to_remove);
ci->i_prealloc_cap_flush = NULL;
}
+
+ if (drop &&
+ ci->i_wrbuffer_ref_head == 0 &&
+ ci->i_wr_ref == 0 &&
+ ci->i_dirty_caps == 0 &&
+ ci->i_flushing_caps == 0) {
+ ceph_put_snap_context(ci->i_head_snapc);
+ ci->i_head_snapc = NULL;
+ }
}
spin_unlock(&ci->i_ceph_lock);
while (!list_empty(&to_remove)) {
@@ -2161,10 +2170,39 @@ retry:
return path;
}
+/* Duplicate the dentry->d_name.name safely */
+static int clone_dentry_name(struct dentry *dentry, const char **ppath,
+ int *ppathlen)
+{
+ u32 len;
+ char *name;
+
+retry:
+ len = READ_ONCE(dentry->d_name.len);
+ name = kmalloc(len + 1, GFP_NOFS);
+ if (!name)
+ return -ENOMEM;
+
+ spin_lock(&dentry->d_lock);
+ if (dentry->d_name.len != len) {
+ spin_unlock(&dentry->d_lock);
+ kfree(name);
+ goto retry;
+ }
+ memcpy(name, dentry->d_name.name, len);
+ spin_unlock(&dentry->d_lock);
+
+ name[len] = '\0';
+ *ppath = name;
+ *ppathlen = len;
+ return 0;
+}
+
static int build_dentry_path(struct dentry *dentry, struct inode *dir,
const char **ppath, int *ppathlen, u64 *pino,
- int *pfreepath)
+ bool *pfreepath, bool parent_locked)
{
+ int ret;
char *path;
rcu_read_lock();
@@ -2173,8 +2211,15 @@ static int build_dentry_path(struct dentry *dentry, struct inode *dir,
if (dir && ceph_snap(dir) == CEPH_NOSNAP) {
*pino = ceph_ino(dir);
rcu_read_unlock();
- *ppath = dentry->d_name.name;
- *ppathlen = dentry->d_name.len;
+ if (parent_locked) {
+ *ppath = dentry->d_name.name;
+ *ppathlen = dentry->d_name.len;
+ } else {
+ ret = clone_dentry_name(dentry, ppath, ppathlen);
+ if (ret)
+ return ret;
+ *pfreepath = true;
+ }
return 0;
}
rcu_read_unlock();
@@ -2182,13 +2227,13 @@ static int build_dentry_path(struct dentry *dentry, struct inode *dir,
if (IS_ERR(path))
return PTR_ERR(path);
*ppath = path;
- *pfreepath = 1;
+ *pfreepath = true;
return 0;
}
static int build_inode_path(struct inode *inode,
const char **ppath, int *ppathlen, u64 *pino,
- int *pfreepath)
+ bool *pfreepath)
{
struct dentry *dentry;
char *path;
@@ -2204,7 +2249,7 @@ static int build_inode_path(struct inode *inode,
if (IS_ERR(path))
return PTR_ERR(path);
*ppath = path;
- *pfreepath = 1;
+ *pfreepath = true;
return 0;
}
@@ -2215,7 +2260,7 @@ static int build_inode_path(struct inode *inode,
static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry,
struct inode *rdiri, const char *rpath,
u64 rino, const char **ppath, int *pathlen,
- u64 *ino, int *freepath)
+ u64 *ino, bool *freepath, bool parent_locked)
{
int r = 0;
@@ -2225,7 +2270,7 @@ static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry,
ceph_snap(rinode));
} else if (rdentry) {
r = build_dentry_path(rdentry, rdiri, ppath, pathlen, ino,
- freepath);
+ freepath, parent_locked);
dout(" dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen,
*ppath);
} else if (rpath || rino) {
@@ -2251,7 +2296,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
const char *path2 = NULL;
u64 ino1 = 0, ino2 = 0;
int pathlen1 = 0, pathlen2 = 0;
- int freepath1 = 0, freepath2 = 0;
+ bool freepath1 = false, freepath2 = false;
int len;
u16 releases;
void *p, *end;
@@ -2259,16 +2304,19 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
ret = set_request_path_attr(req->r_inode, req->r_dentry,
req->r_parent, req->r_path1, req->r_ino1.ino,
- &path1, &pathlen1, &ino1, &freepath1);
+ &path1, &pathlen1, &ino1, &freepath1,
+ test_bit(CEPH_MDS_R_PARENT_LOCKED,
+ &req->r_req_flags));
if (ret < 0) {
msg = ERR_PTR(ret);
goto out;
}
+ /* If r_old_dentry is set, then assume that its parent is locked */
ret = set_request_path_attr(NULL, req->r_old_dentry,
req->r_old_dentry_dir,
req->r_path2, req->r_ino2.ino,
- &path2, &pathlen2, &ino2, &freepath2);
+ &path2, &pathlen2, &ino2, &freepath2, true);
if (ret < 0) {
msg = ERR_PTR(ret);
goto out_free1;
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 89aa37fa0f84..b26e12cd8ec3 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -572,7 +572,12 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
old_snapc = NULL;
update_snapc:
- if (ci->i_head_snapc) {
+ if (ci->i_wrbuffer_ref_head == 0 &&
+ ci->i_wr_ref == 0 &&
+ ci->i_dirty_caps == 0 &&
+ ci->i_flushing_caps == 0) {
+ ci->i_head_snapc = NULL;
+ } else {
ci->i_head_snapc = ceph_get_snap_context(new_snapc);
dout(" new snapc is %p\n", new_snapc);
}
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 9c0ccc06d172..7037a137fa53 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2877,7 +2877,6 @@ static void collect_uncached_write_data(struct cifs_aio_ctx *ctx)
struct cifs_tcon *tcon;
struct cifs_sb_info *cifs_sb;
struct dentry *dentry = ctx->cfile->dentry;
- unsigned int i;
int rc;
tcon = tlink_tcon(ctx->cfile->tlink);
@@ -2941,10 +2940,6 @@ restart_loop:
kref_put(&wdata->refcount, cifs_uncached_writedata_release);
}
- if (!ctx->direct_io)
- for (i = 0; i < ctx->npages; i++)
- put_page(ctx->bv[i].bv_page);
-
cifs_stats_bytes_written(tcon, ctx->total_len);
set_bit(CIFS_INO_INVALID_MAPPING, &CIFS_I(dentry->d_inode)->flags);
@@ -3582,7 +3577,6 @@ collect_uncached_read_data(struct cifs_aio_ctx *ctx)
struct iov_iter *to = &ctx->iter;
struct cifs_sb_info *cifs_sb;
struct cifs_tcon *tcon;
- unsigned int i;
int rc;
tcon = tlink_tcon(ctx->cfile->tlink);
@@ -3666,15 +3660,8 @@ again:
kref_put(&rdata->refcount, cifs_uncached_readdata_release);
}
- if (!ctx->direct_io) {
- for (i = 0; i < ctx->npages; i++) {
- if (ctx->should_dirty)
- set_page_dirty(ctx->bv[i].bv_page);
- put_page(ctx->bv[i].bv_page);
- }
-
+ if (!ctx->direct_io)
ctx->total_len = ctx->len - iov_iter_count(to);
- }
/* mask nodata case */
if (rc == -ENODATA)
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 53fdb5df0d2e..538fd7d807e4 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1735,6 +1735,10 @@ cifs_do_rename(const unsigned int xid, struct dentry *from_dentry,
if (rc == 0 || rc != -EBUSY)
goto do_rename_exit;
+ /* Don't fall back to using SMB on SMB 2+ mount */
+ if (server->vals->protocol_id != 0)
+ goto do_rename_exit;
+
/* open-file renames don't work across directories */
if (to_dentry->d_parent != from_dentry->d_parent)
goto do_rename_exit;
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 1e1626a2cfc3..0dc6f08020ac 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -789,6 +789,11 @@ cifs_aio_ctx_alloc(void)
{
struct cifs_aio_ctx *ctx;
+ /*
+ * Must use kzalloc to initialize ctx->bv to NULL and ctx->direct_io
+ * to false so that we know when we have to unreference pages within
+ * cifs_aio_ctx_release()
+ */
ctx = kzalloc(sizeof(struct cifs_aio_ctx), GFP_KERNEL);
if (!ctx)
return NULL;
@@ -807,7 +812,23 @@ cifs_aio_ctx_release(struct kref *refcount)
struct cifs_aio_ctx, refcount);
cifsFileInfo_put(ctx->cfile);
- kvfree(ctx->bv);
+
+ /*
+ * ctx->bv is only set if setup_aio_ctx_iter() was call successfuly
+ * which means that iov_iter_get_pages() was a success and thus that
+ * we have taken reference on pages.
+ */
+ if (ctx->bv) {
+ unsigned i;
+
+ for (i = 0; i < ctx->npages; i++) {
+ if (ctx->should_dirty)
+ set_page_dirty(ctx->bv[i].bv_page);
+ put_page(ctx->bv[i].bv_page);
+ }
+ kvfree(ctx->bv);
+ }
+
kfree(ctx);
}
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index b8f7262ac354..a37774a55f3a 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3466,6 +3466,7 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
io_parms->tcon->tid, ses->Suid,
io_parms->offset, 0);
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
+ cifs_small_buf_release(req);
return rc == -ENODATA ? 0 : rc;
} else
trace_smb3_read_done(xid, req->PersistentFileId,
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index d65390727541..7325baa8f9d4 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1626,9 +1626,11 @@ static void drop_sysctl_table(struct ctl_table_header *header)
if (--header->nreg)
return;
- if (parent)
+ if (parent) {
put_links(header);
- start_unregistering(header);
+ start_unregistering(header);
+ }
+
if (!--header->count)
kfree_rcu(header, rcu);
diff --git a/fs/splice.c b/fs/splice.c
index 98943d9b219c..25212dcca2df 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -330,8 +330,8 @@ const struct pipe_buf_operations default_pipe_buf_ops = {
.get = generic_pipe_buf_get,
};
-static int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
+int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe,
+ struct pipe_buffer *buf)
{
return 1;
}
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index cbf3180cb612..668ad971cd7b 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -420,7 +420,6 @@ extern struct ttm_bo_global {
/**
* Protected by ttm_global_mutex.
*/
- unsigned int use_count;
struct list_head device_list;
/**
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index abb2dac3da9b..5c626fdc10db 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -176,6 +176,7 @@ void free_pipe_info(struct pipe_inode_info *);
bool generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *);
int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *);
int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *);
+int generic_pipe_buf_nosteal(struct pipe_inode_info *, struct pipe_buffer *);
void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *);
void pipe_buf_mark_unmergeable(struct pipe_buffer *buf);
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 41b6f96e5366..4ee8d8aa3d0f 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -762,7 +762,7 @@ u64 ring_buffer_time_stamp(struct ring_buffer *buffer, int cpu)
preempt_disable_notrace();
time = rb_time_stamp(buffer);
- preempt_enable_no_resched_notrace();
+ preempt_enable_notrace();
return time;
}
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 6c24755655c7..ca1ee656d6d8 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -496,8 +496,10 @@ int trace_pid_write(struct trace_pid_list *filtered_pids,
* not modified.
*/
pid_list = kmalloc(sizeof(*pid_list), GFP_KERNEL);
- if (!pid_list)
+ if (!pid_list) {
+ trace_parser_put(&parser);
return -ENOMEM;
+ }
pid_list->pid_max = READ_ONCE(pid_max);
@@ -507,6 +509,7 @@ int trace_pid_write(struct trace_pid_list *filtered_pids,
pid_list->pids = vzalloc((pid_list->pid_max + 7) >> 3);
if (!pid_list->pids) {
+ trace_parser_put(&parser);
kfree(pid_list);
return -ENOMEM;
}
@@ -7025,19 +7028,23 @@ struct buffer_ref {
struct ring_buffer *buffer;
void *page;
int cpu;
- int ref;
+ refcount_t refcount;
};
+static void buffer_ref_release(struct buffer_ref *ref)
+{
+ if (!refcount_dec_and_test(&ref->refcount))
+ return;
+ ring_buffer_free_read_page(ref->buffer, ref->cpu, ref->page);
+ kfree(ref);
+}
+
static void buffer_pipe_buf_release(struct pipe_inode_info *pipe,
struct pipe_buffer *buf)
{
struct buffer_ref *ref = (struct buffer_ref *)buf->private;
- if (--ref->ref)
- return;
-
- ring_buffer_free_read_page(ref->buffer, ref->cpu, ref->page);
- kfree(ref);
+ buffer_ref_release(ref);
buf->private = 0;
}
@@ -7046,10 +7053,10 @@ static bool buffer_pipe_buf_get(struct pipe_inode_info *pipe,
{
struct buffer_ref *ref = (struct buffer_ref *)buf->private;
- if (ref->ref > INT_MAX/2)
+ if (refcount_read(&ref->refcount) > INT_MAX/2)
return false;
- ref->ref++;
+ refcount_inc(&ref->refcount);
return true;
}
@@ -7057,7 +7064,7 @@ static bool buffer_pipe_buf_get(struct pipe_inode_info *pipe,
static const struct pipe_buf_operations buffer_pipe_buf_ops = {
.confirm = generic_pipe_buf_confirm,
.release = buffer_pipe_buf_release,
- .steal = generic_pipe_buf_steal,
+ .steal = generic_pipe_buf_nosteal,
.get = buffer_pipe_buf_get,
};
@@ -7070,11 +7077,7 @@ static void buffer_spd_release(struct splice_pipe_desc *spd, unsigned int i)
struct buffer_ref *ref =
(struct buffer_ref *)spd->partial[i].private;
- if (--ref->ref)
- return;
-
- ring_buffer_free_read_page(ref->buffer, ref->cpu, ref->page);
- kfree(ref);
+ buffer_ref_release(ref);
spd->partial[i].private = 0;
}
@@ -7129,7 +7132,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
break;
}
- ref->ref = 1;
+ refcount_set(&ref->refcount, 1);
ref->buffer = iter->trace_buffer->buffer;
ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file);
if (IS_ERR(ref->page)) {
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 00dbcdbc9a0d..d5a4a4036d2f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1929,6 +1929,7 @@ config TEST_KMOD
depends on m
depends on BLOCK && (64BIT || LBDAF) # for XFS, BTRFS
depends on NETDEVICES && NET_CORE && INET # for TUN
+ depends on BLOCK
select TEST_LKM
select XFS_FS
select TUN
diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c
index 83cdcaa82bf6..f832b095afba 100644
--- a/lib/test_vmalloc.c
+++ b/lib/test_vmalloc.c
@@ -383,14 +383,14 @@ static void shuffle_array(int *arr, int n)
static int test_func(void *private)
{
struct test_driver *t = private;
- cpumask_t newmask = CPU_MASK_NONE;
int random_array[ARRAY_SIZE(test_case_array)];
int index, i, j, ret;
ktime_t kt;
u64 delta;
- cpumask_set_cpu(t->cpu, &newmask);
- set_cpus_allowed_ptr(current, &newmask);
+ ret = set_cpus_allowed_ptr(current, cpumask_of(t->cpu));
+ if (ret < 0)
+ pr_err("Failed to set affinity to %d CPU\n", t->cpu);
for (i = 0; i < ARRAY_SIZE(test_case_array); i++)
random_array[i] = i;
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 0082d699be94..b236069ff0d8 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -874,6 +874,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
*/
mem = find_memory_block(__pfn_to_section(pfn));
nid = mem->nid;
+ put_device(&mem->dev);
/* associate pfn range with the zone */
zone = move_pfn_range(online_type, nid, pfn, nr_pages);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c6ce20aaf80b..c02cff1ed56e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -266,7 +266,20 @@ compound_page_dtor * const compound_page_dtors[] = {
int min_free_kbytes = 1024;
int user_min_free_kbytes = -1;
+#ifdef CONFIG_DISCONTIGMEM
+/*
+ * DiscontigMem defines memory ranges as separate pg_data_t even if the ranges
+ * are not on separate NUMA nodes. Functionally this works but with
+ * watermark_boost_factor, it can reclaim prematurely as the ranges can be
+ * quite small. By default, do not boost watermarks on discontigmem as in
+ * many cases very high-order allocations like THP are likely to be
+ * unsupported and the premature reclaim offsets the advantage of long-term
+ * fragmentation avoidance.
+ */
+int watermark_boost_factor __read_mostly;
+#else
int watermark_boost_factor __read_mostly = 15000;
+#endif
int watermark_scale_factor = 10;
static unsigned long nr_kernel_pages __initdata;
@@ -3419,8 +3432,11 @@ alloc_flags_nofragment(struct zone *zone, gfp_t gfp_mask)
alloc_flags |= ALLOC_KSWAPD;
#ifdef CONFIG_ZONE_DMA32
+ if (!zone)
+ return alloc_flags;
+
if (zone_idx(zone) != ZONE_NORMAL)
- goto out;
+ return alloc_flags;
/*
* If ZONE_DMA32 exists, assume it is the one after ZONE_NORMAL and
@@ -3429,9 +3445,9 @@ alloc_flags_nofragment(struct zone *zone, gfp_t gfp_mask)
*/
BUILD_BUG_ON(ZONE_NORMAL - ZONE_DMA32 != 1);
if (nr_online_nodes > 1 && !populated_zone(--zone))
- goto out;
+ return alloc_flags;
-out:
+ alloc_flags |= ALLOC_NOFRAGMENT;
#endif /* CONFIG_ZONE_DMA32 */
return alloc_flags;
}
@@ -3773,11 +3789,6 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
memalloc_noreclaim_restore(noreclaim_flag);
psi_memstall_leave(&pflags);
- if (*compact_result <= COMPACT_INACTIVE) {
- WARN_ON_ONCE(page);
- return NULL;
- }
-
/*
* At least in one zone compaction wasn't deferred or skipped, so let's
* count a compaction stall