diff options
Diffstat (limited to 'lib/device/device.h')
| -rw-r--r-- | lib/device/device.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/device/device.h b/lib/device/device.h index 694f503..8c32a03 100644 --- a/lib/device/device.h +++ b/lib/device/device.h @@ -68,11 +68,15 @@ struct device_area { int dev_get_size(const struct device *dev, uint64_t *size); int dev_get_sectsize(struct device *dev, uint32_t *size); int dev_get_read_ahead(struct device *dev, uint32_t *read_ahead); +int dev_discard_blocks(struct device *dev, uint64_t offset_bytes, uint64_t size_bytes); /* Use quiet version if device number could change e.g. when opening LV */ int dev_open(struct device *dev); int dev_open_quiet(struct device *dev); int dev_open_flags(struct device *dev, int flags, int direct, int quiet); +int dev_open_readonly(struct device *dev); +int dev_open_readonly_buffered(struct device *dev); +int dev_open_readonly_quiet(struct device *dev); int dev_close(struct device *dev); int dev_close_immediate(struct device *dev); void dev_close_all(void); @@ -83,9 +87,9 @@ const char *dev_name(const struct device *dev); int dev_read(struct device *dev, uint64_t offset, size_t len, void *buffer); int dev_read_circular(struct device *dev, uint64_t offset, size_t len, - uint64_t offset2, size_t len2, void *buf); + uint64_t offset2, size_t len2, char *buf); int dev_write(struct device *dev, uint64_t offset, size_t len, void *buffer); -int dev_append(struct device *dev, size_t len, void *buffer); +int dev_append(struct device *dev, size_t len, char *buffer); int dev_set(struct device *dev, uint64_t offset, size_t len, int value); void dev_flush(struct device *dev); @@ -115,4 +119,10 @@ unsigned long dev_minimum_io_size(const char *sysfs_dir, unsigned long dev_optimal_io_size(const char *sysfs_dir, struct device *dev); +unsigned long dev_discard_max_bytes(const char *sysfs_dir, + struct device *dev); + +unsigned long dev_discard_granularity(const char *sysfs_dir, + struct device *dev); + #endif |