diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi.h | 2 | ||||
| -rw-r--r-- | include/linux/atalk.h | 2 | ||||
| -rw-r--r-- | include/linux/dma-mapping.h | 3 | ||||
| -rw-r--r-- | include/linux/jbd2.h | 4 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 5 | ||||
| -rw-r--r-- | include/linux/quotaops.h | 10 | ||||
| -rw-r--r-- | include/linux/regulator/consumer.h | 2 | ||||
| -rw-r--r-- | include/linux/serial_core.h | 37 | ||||
| -rw-r--r-- | include/linux/thread_info.h | 3 | ||||
| -rw-r--r-- | include/linux/time.h | 12 |
10 files changed, 72 insertions, 8 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 6a30f1e03aa9..0bd0a9ad5455 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -75,7 +75,7 @@ static inline bool has_acpi_companion(struct device *dev) static inline void acpi_preset_companion(struct device *dev, struct acpi_device *parent, u64 addr) { - ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL)); + ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); } static inline const char *acpi_dev_name(struct acpi_device *adev) diff --git a/include/linux/atalk.h b/include/linux/atalk.h index af43ed404ff4..4be0e14b38fc 100644 --- a/include/linux/atalk.h +++ b/include/linux/atalk.h @@ -107,7 +107,7 @@ static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb) #define AARP_RESOLVE_TIME (10 * HZ) extern struct datalink_proto *ddp_dl, *aarp_dl; -extern void aarp_proto_init(void); +extern int aarp_proto_init(void); /* Inter module exports */ diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 2e551e2d2d03..62dd6676b7cc 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -151,8 +151,7 @@ static inline unsigned int dma_get_max_seg_size(struct device *dev) return SZ_64K; } -static inline unsigned int dma_set_max_seg_size(struct device *dev, - unsigned int size) +static inline int dma_set_max_seg_size(struct device *dev, unsigned int size) { if (dev->dma_parms) { dev->dma_parms->max_segment_size = size; diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 65407f6c9120..00108208759d 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1440,7 +1440,7 @@ static inline int jbd2_space_needed(journal_t *journal) static inline unsigned long jbd2_log_space_left(journal_t *journal) { /* Allow for rounding errors */ - unsigned long free = journal->j_free - 32; + long free = journal->j_free - 32; if (journal->j_committing_transaction) { unsigned long committing = atomic_read(&journal-> @@ -1449,7 +1449,7 @@ static inline unsigned long jbd2_log_space_left(journal_t *journal) /* Transaction + control blocks */ free -= committing + (committing >> JBD2_CONTROL_BLOCKS_SHIFT); } - return free; + return max_t(long, free, 0); } /* diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 861b71377e5e..d999e503ba8a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1617,6 +1617,11 @@ struct net_device { unsigned char if_port; unsigned char dma; + /* Note : dev->mtu is often read without holding a lock. + * Writers usually hold RTNL. + * It is recommended to use READ_ONCE() to annotate the reads, + * and to use WRITE_ONCE() to annotate the writes. + */ unsigned int mtu; unsigned short type; unsigned short hard_header_len; diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h index 1f350238445c..a946c4c1a77e 100644 --- a/include/linux/quotaops.h +++ b/include/linux/quotaops.h @@ -54,6 +54,16 @@ static inline struct dquot *dqgrab(struct dquot *dquot) atomic_inc(&dquot->dq_count); return dquot; } + +static inline bool dquot_is_busy(struct dquot *dquot) +{ + if (test_bit(DQ_MOD_B, &dquot->dq_flags)) + return true; + if (atomic_read(&dquot->dq_count) > 1) + return true; + return false; +} + void dqput(struct dquot *dquot); int dquot_scan_active(struct super_block *sb, int (*fn)(struct dquot *dquot, unsigned long priv), diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 9e0e76992be0..bf62713af290 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -485,7 +485,7 @@ static inline unsigned int regulator_get_mode(struct regulator *regulator) static inline int regulator_set_load(struct regulator *regulator, int load_uA) { - return REGULATOR_MODE_NORMAL; + return 0; } static inline int regulator_allow_bypass(struct regulator *regulator, diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 0afc11f8f300..5685a2ca38d2 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -160,6 +160,7 @@ struct uart_port { struct console *cons; /* struct console, if any */ #if defined(CONFIG_SERIAL_CORE_CONSOLE) || defined(SUPPORT_SYSRQ) unsigned long sysrq; /* sysrq timeout */ + unsigned int sysrq_ch; /* char for sysrq */ #endif /* flags must be updated while holding port mutex */ @@ -441,8 +442,42 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch) } return 0; } +static inline int +uart_prepare_sysrq_char(struct uart_port *port, unsigned int ch) +{ + if (port->sysrq) { + if (ch && time_before(jiffies, port->sysrq)) { + port->sysrq_ch = ch; + port->sysrq = 0; + return 1; + } + port->sysrq = 0; + } + return 0; +} +static inline void +uart_unlock_and_check_sysrq(struct uart_port *port, unsigned long irqflags) +{ + int sysrq_ch; + + sysrq_ch = port->sysrq_ch; + port->sysrq_ch = 0; + + spin_unlock_irqrestore(&port->lock, irqflags); + + if (sysrq_ch) + handle_sysrq(sysrq_ch); +} #else -#define uart_handle_sysrq_char(port,ch) ({ (void)port; 0; }) +static inline int +uart_handle_sysrq_char(struct uart_port *port, unsigned int ch) { return 0; } +static inline int +uart_prepare_sysrq_char(struct uart_port *port, unsigned int ch) { return 0; } +static inline void +uart_unlock_and_check_sysrq(struct uart_port *port, unsigned long irqflags) +{ + spin_unlock_irqrestore(&port->lock, irqflags); +} #endif /* diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 25f861ecb195..ecbd6ad90e2e 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -11,6 +11,9 @@ #include <linux/bug.h> #include <linux/restart_block.h> +struct timespec; +struct compat_timespec; + #ifdef CONFIG_THREAD_INFO_IN_TASK /* * For CONFIG_THREAD_INFO_IN_TASK kernels we need <asm/current.h> for the diff --git a/include/linux/time.h b/include/linux/time.h index 297f09f23896..62cc50700004 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -262,4 +262,16 @@ static __always_inline void timespec_add_ns(struct timespec *a, u64 ns) a->tv_nsec = ns; } +/** + * time_between32 - check if a 32-bit timestamp is within a given time range + * @t: the time which may be within [l,h] + * @l: the lower bound of the range + * @h: the higher bound of the range + * + * time_before32(t, l, h) returns true if @l <= @t <= @h. All operands are + * treated as 32-bit integers. + * + * Equivalent to !(time_before32(@t, @l) || time_after32(@t, @h)). + */ +#define time_between32(t, l, h) ((u32)(h) - (u32)(l) >= (u32)(t) - (u32)(l)) #endif |