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-rw-r--r--include/linux/Kbuild4
-rw-r--r--include/linux/bitops.h40
-rw-r--r--include/linux/cgroup.h1
-rw-r--r--include/linux/compat.h4
-rw-r--r--include/linux/cpuidle.h4
-rw-r--r--include/linux/dmaengine.h2
-rw-r--r--include/linux/hardirq.h7
-rw-r--r--include/linux/hpet.h2
-rw-r--r--include/linux/ide.h2
-rw-r--r--include/linux/input.h5
-rw-r--r--include/linux/iocontext.h3
-rw-r--r--include/linux/lguest_launcher.h6
-rw-r--r--include/linux/libata.h27
-rw-r--r--include/linux/linkage.h20
-rw-r--r--include/linux/mount.h2
-rw-r--r--include/linux/netdevice.h12
-rw-r--r--include/linux/pnp.h2
-rw-r--r--include/linux/sched.h6
-rw-r--r--include/linux/spinlock.h3
-rw-r--r--include/linux/virtio.h5
20 files changed, 112 insertions, 45 deletions
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 4108b38ebb1..9cdd12a9e84 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -195,7 +195,6 @@ unifdef-y += ethtool.h
unifdef-y += eventpoll.h
unifdef-y += signalfd.h
unifdef-y += ext2_fs.h
-unifdef-y += ext3_fs.h
unifdef-y += fb.h
unifdef-y += fcntl.h
unifdef-y += filter.h
@@ -248,14 +247,13 @@ unifdef-y += isdn.h
unifdef-y += isdnif.h
unifdef-y += isdn_divertif.h
unifdef-y += isdn_ppp.h
-unifdef-y += jbd.h
unifdef-y += joystick.h
unifdef-y += kdev_t.h
unifdef-y += kd.h
unifdef-y += kernelcapi.h
unifdef-y += kernel.h
unifdef-y += keyboard.h
-unifdef-$(CONFIG_HAVE_KVM) += kvm.h
+unifdef-y += kvm.h
unifdef-y += llc.h
unifdef-y += loop.h
unifdef-y += lp.h
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 69c1edb9fe5..40d54731de7 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -65,6 +65,46 @@ static inline __u32 ror32(__u32 word, unsigned int shift)
return (word >> shift) | (word << (32 - shift));
}
+/**
+ * rol16 - rotate a 16-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u16 rol16(__u16 word, unsigned int shift)
+{
+ return (word << shift) | (word >> (16 - shift));
+}
+
+/**
+ * ror16 - rotate a 16-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u16 ror16(__u16 word, unsigned int shift)
+{
+ return (word >> shift) | (word << (16 - shift));
+}
+
+/**
+ * rol8 - rotate an 8-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u8 rol8(__u8 word, unsigned int shift)
+{
+ return (word << shift) | (word >> (8 - shift));
+}
+
+/**
+ * ror8 - rotate an 8-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u8 ror8(__u8 word, unsigned int shift)
+{
+ return (word >> shift) | (word << (8 - shift));
+}
+
static inline unsigned fls_long(unsigned long l)
{
if (sizeof(l) == 4)
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 028ba3b523b..a6a6035a4e1 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -256,6 +256,7 @@ struct cgroup_subsys {
void (*bind)(struct cgroup_subsys *ss, struct cgroup *root);
int subsys_id;
int active;
+ int disabled;
int early_init;
#define MAX_CGROUP_TYPE_NAMELEN 32
const char *name;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index a671dbff7a1..8fa7857e153 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -192,8 +192,8 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
struct compat_timeval __user *tvp);
asmlinkage long compat_sys_wait4(compat_pid_t pid,
- compat_uint_t *stat_addr, int options,
- struct compat_rusage *ru);
+ compat_uint_t __user *stat_addr, int options,
+ struct compat_rusage __user *ru);
#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 6b72a458408..51e6b1e520e 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -38,8 +38,8 @@ struct cpuidle_state {
unsigned int power_usage; /* in mW */
unsigned int target_residency; /* in US */
- unsigned int usage;
- unsigned int time; /* in US */
+ unsigned long long usage;
+ unsigned long long time; /* in US */
int (*enter) (struct cpuidle_device *dev,
struct cpuidle_state *state);
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 261e43a4c87..34d44069829 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -423,7 +423,7 @@ void dma_async_device_unregister(struct dma_device *device);
/* --- Helper iov-locking functions --- */
struct dma_page_list {
- char *base_address;
+ char __user *base_address;
int nr_pages;
struct page **pages;
};
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 49829988bfa..897f723bd22 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -72,6 +72,13 @@
#define in_softirq() (softirq_count())
#define in_interrupt() (irq_count())
+/*
+ * Are we running in atomic context? WARNING: this macro cannot
+ * always detect atomic context; in particular, it cannot know about
+ * held spinlocks in non-preemptible kernels. Thus it should not be
+ * used in the general case to determine whether sleeping is possible.
+ * Do not use in_atomic() in driver code.
+ */
#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0)
#ifdef CONFIG_PREEMPT
diff --git a/include/linux/hpet.h b/include/linux/hpet.h
index 9cd94bfd07e..2dc29ce6c8e 100644
--- a/include/linux/hpet.h
+++ b/include/linux/hpet.h
@@ -64,7 +64,7 @@ struct hpet {
*/
#define Tn_INT_ROUTE_CAP_MASK (0xffffffff00000000ULL)
-#define Tn_INT_ROUTE_CAP_SHIFT (32UL)
+#define Tn_INI_ROUTE_CAP_SHIFT (32UL)
#define Tn_FSB_INT_DELCAP_MASK (0x8000UL)
#define Tn_FSB_INT_DELCAP_SHIFT (15)
#define Tn_FSB_EN_CNF_MASK (0x4000UL)
diff --git a/include/linux/ide.h b/include/linux/ide.h
index a3b69c10d66..bc26b2f2735 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -26,7 +26,7 @@
#include <asm/semaphore.h>
#include <asm/mutex.h>
-#if defined(CRIS) || defined(FRV)
+#if defined(CONFIG_CRIS) || defined(CONFIG_FRV)
# define SUPPORT_VLB_SYNC 0
#else
# define SUPPORT_VLB_SYNC 1
diff --git a/include/linux/input.h b/include/linux/input.h
index 1bdc39a8c76..cae2c35d120 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1227,12 +1227,13 @@ void input_free_device(struct input_dev *dev);
static inline struct input_dev *input_get_device(struct input_dev *dev)
{
- return to_input_dev(get_device(&dev->dev));
+ return dev ? to_input_dev(get_device(&dev->dev)) : NULL;
}
static inline void input_put_device(struct input_dev *dev)
{
- put_device(&dev->dev);
+ if (dev)
+ put_device(&dev->dev);
}
static inline void *input_get_drvdata(struct input_dev *dev)
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 1b4ccf25b4d..cac4b364cd4 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -2,6 +2,7 @@
#define IOCONTEXT_H
#include <linux/radix-tree.h>
+#include <linux/rcupdate.h>
/*
* This is the per-process anticipatory I/O scheduler state.
@@ -54,6 +55,8 @@ struct cfq_io_context {
void (*dtor)(struct io_context *); /* destructor */
void (*exit)(struct io_context *); /* called on task exit */
+
+ struct rcu_head rcu_head;
};
/*
diff --git a/include/linux/lguest_launcher.h b/include/linux/lguest_launcher.h
index 589be3e1f3a..e7217dc58f3 100644
--- a/include/linux/lguest_launcher.h
+++ b/include/linux/lguest_launcher.h
@@ -16,6 +16,10 @@
* a new device, we simply need to write a new virtio driver and create support
* for it in the Launcher: this code won't need to change.
*
+ * Virtio devices are also used by kvm, so we can simply reuse their optimized
+ * device drivers. And one day when everyone uses virtio, my plan will be
+ * complete. Bwahahahah!
+ *
* Devices are described by a simplified ID, a status byte, and some "config"
* bytes which describe this device's configuration. This is placed by the
* Launcher just above the top of physical memory:
@@ -26,7 +30,7 @@ struct lguest_device_desc {
/* The number of virtqueues (first in config array) */
__u8 num_vq;
/* The number of bytes of feature bits. Multiply by 2: one for host
- * features and one for guest acknowledgements. */
+ * features and one for Guest acknowledgements. */
__u8 feature_len;
/* The number of bytes of the config array after virtqueues. */
__u8 config_len;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 269cdba0957..37ee881c42a 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -295,6 +295,7 @@ enum {
ATA_EH_SOFTRESET = (1 << 1),
ATA_EH_HARDRESET = (1 << 2),
ATA_EH_ENABLE_LINK = (1 << 3),
+ ATA_EH_LPM = (1 << 4), /* link power management action */
ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE,
@@ -304,7 +305,6 @@ enum {
ATA_EHI_RESUME_LINK = (1 << 1), /* resume link (reset modifier) */
ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */
ATA_EHI_QUIET = (1 << 3), /* be quiet */
- ATA_EHI_LPM = (1 << 4), /* link power management action */
ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */
ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */
@@ -350,7 +350,8 @@ enum {
ATAPI_READ = 0, /* READs */
ATAPI_WRITE = 1, /* WRITEs */
ATAPI_READ_CD = 2, /* READ CD [MSF] */
- ATAPI_MISC = 3, /* the rest */
+ ATAPI_PASS_THRU = 3, /* SAT pass-thru */
+ ATAPI_MISC = 4, /* the rest */
};
enum ata_xfer_mask {
@@ -849,6 +850,7 @@ extern unsigned int ata_dev_try_classify(struct ata_device *dev, int present,
*/
extern void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf);
extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
+extern int atapi_cmd_type(u8 opcode);
extern void ata_tf_to_fis(const struct ata_taskfile *tf,
u8 pmp, int is_cmd, u8 *fis);
extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf);
@@ -1379,27 +1381,6 @@ static inline int ata_try_flush_cache(const struct ata_device *dev)
ata_id_has_flush_ext(dev->id);
}
-static inline int atapi_cmd_type(u8 opcode)
-{
- switch (opcode) {
- case GPCMD_READ_10:
- case GPCMD_READ_12:
- return ATAPI_READ;
-
- case GPCMD_WRITE_10:
- case GPCMD_WRITE_12:
- case GPCMD_WRITE_AND_VERIFY_10:
- return ATAPI_WRITE;
-
- case GPCMD_READ_CD:
- case GPCMD_READ_CD_MSF:
- return ATAPI_READ_CD;
-
- default:
- return ATAPI_MISC;
- }
-}
-
static inline unsigned int ac_err_mask(u8 status)
{
if (status & (ATA_BUSY | ATA_DRQ))
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 0592936344c..2119610b24f 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -17,8 +17,24 @@
# define asmregparm
#endif
-#ifndef prevent_tail_call
-# define prevent_tail_call(ret) do { } while (0)
+/*
+ * This is used by architectures to keep arguments on the stack
+ * untouched by the compiler by keeping them live until the end.
+ * The argument stack may be owned by the assembly-language
+ * caller, not the callee, and gcc doesn't always understand
+ * that.
+ *
+ * We have the return value, and a maximum of six arguments.
+ *
+ * This should always be followed by a "return ret" for the
+ * protection to work (ie no more work that the compiler might
+ * end up needing stack temporaries for).
+ */
+/* Assembly files may be compiled with -traditional .. */
+#ifndef __ASSEMBLY__
+#ifndef asmlinkage_protect
+# define asmlinkage_protect(n, ret, args...) do { } while (0)
+#endif
#endif
#ifndef __ALIGN
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 6d3047d8c91..5ee2df217cd 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -61,6 +61,7 @@ struct vfsmount {
atomic_t mnt_count;
int mnt_expiry_mark; /* true if marked for expiry */
int mnt_pinned;
+ int mnt_ghosts;
};
static inline struct vfsmount *mntget(struct vfsmount *mnt)
@@ -98,7 +99,6 @@ extern int do_add_mount(struct vfsmount *newmnt, struct nameidata *nd,
int mnt_flags, struct list_head *fslist);
extern void mark_mounts_for_expiry(struct list_head *mounts);
-extern void shrink_submounts(struct vfsmount *mountpoint, struct list_head *mounts);
extern spinlock_t vfsmount_lock;
extern dev_t name_to_dev_t(char *name);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a2f003239c8..ee81906b516 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -383,9 +383,11 @@ static inline void __napi_complete(struct napi_struct *n)
static inline void napi_complete(struct napi_struct *n)
{
- local_irq_disable();
+ unsigned long flags;
+
+ local_irq_save(flags);
__napi_complete(n);
- local_irq_enable();
+ local_irq_restore(flags);
}
/**
@@ -1072,12 +1074,14 @@ static inline int netif_is_multiqueue(const struct net_device *dev)
}
/* Use this variant when it is known for sure that it
- * is executing from interrupt context.
+ * is executing from hardware interrupt context or with hardware interrupts
+ * disabled.
*/
extern void dev_kfree_skb_irq(struct sk_buff *skb);
/* Use this variant in places where it could be invoked
- * either from interrupt or non-interrupt context.
+ * from either hardware interrupt or other context, with hardware interrupts
+ * either disabled or enabled.
*/
extern void dev_kfree_skb_any(struct sk_buff *skb);
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 29dd55838e8..b2f05c230f4 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -175,7 +175,7 @@ static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data)
struct pnp_dev {
struct device dev; /* Driver Model device interface */
u64 dma_mask;
- unsigned char number; /* used as an index, must be unique */
+ unsigned int number; /* used as an index, must be unique */
int status;
struct list_head global_list; /* node in global list of devices */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index fed07d03364..6a1e7afb099 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1541,6 +1541,12 @@ static inline void idle_task_exit(void) {}
extern void sched_idle_next(void);
+#if defined(CONFIG_NO_HZ) && defined(CONFIG_SMP)
+extern void wake_up_idle_cpu(int cpu);
+#else
+static inline void wake_up_idle_cpu(int cpu) { }
+#endif
+
#ifdef CONFIG_SCHED_DEBUG
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 576a5f77d3b..1129ee0a718 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -341,6 +341,9 @@ static inline void double_spin_unlock(spinlock_t *l1, spinlock_t *l2,
* atomic_dec_and_lock - lock on reaching reference count zero
* @atomic: the atomic counter
* @lock: the spinlock in question
+ *
+ * Decrements @atomic by 1. If the result is 0, returns true and locks
+ * @lock. Returns false for all other cases.
*/
extern int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock);
#define atomic_dec_and_lock(atomic, lock) \
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 12c18ac1b97..e7d10845b3c 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -41,6 +41,8 @@ struct virtqueue
* Returns NULL or the "data" token handed to add_buf.
* @disable_cb: disable callbacks
* vq: the struct virtqueue we're talking about.
+ * Note that this is not necessarily synchronous, hence unreliable and only
+ * useful as an optimization.
* @enable_cb: restart callbacks after disable_cb.
* vq: the struct virtqueue we're talking about.
* This re-enables callbacks; it returns "false" if there are pending
@@ -48,7 +50,8 @@ struct virtqueue
* checking for more work, and enabling callbacks.
*
* Locking rules are straightforward: the driver is responsible for
- * locking. No two operations may be invoked simultaneously.
+ * locking. No two operations may be invoked simultaneously, with the exception
+ * of @disable_cb.
*
* All operations can be called in any context.
*/
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 10:02:54 +0000