diff options
Diffstat (limited to 'cpukit/libblock/include/rtems/bdbuf.h')
| -rw-r--r-- | cpukit/libblock/include/rtems/bdbuf.h | 39 |
1 files changed, 18 insertions, 21 deletions
diff --git a/cpukit/libblock/include/rtems/bdbuf.h b/cpukit/libblock/include/rtems/bdbuf.h index 37e06aa9e9..254c745c7a 100644 --- a/cpukit/libblock/include/rtems/bdbuf.h +++ b/cpukit/libblock/include/rtems/bdbuf.h @@ -301,7 +301,7 @@ typedef struct rtems_bdbuf_group rtems_bdbuf_group; * To manage buffers we using buffer descriptors (BD). A BD holds a buffer plus * a range of other information related to managing the buffer in the cache. To * speed-up buffer lookup descriptors are organized in AVL-Tree. The fields - * 'dev' and 'block' are search keys. + * 'dd' and 'block' are search keys. */ typedef struct rtems_bdbuf_buffer { @@ -315,7 +315,7 @@ typedef struct rtems_bdbuf_buffer signed char bal; /**< The balance of the sub-tree */ } avl; - dev_t dev; /**< device number */ + const rtems_disk_device *dd; /**< disk device */ rtems_blkdev_bnum block; /**< block number on the device */ @@ -470,8 +470,7 @@ rtems_bdbuf_init (void); * The block number is the linear block number. This is relative to the start * of the partition on the media. * - * @param device [in] Device number (constructed of major and minor device - * number). + * @param dd [in] The disk device. * @param block [in] Linear media block number. * @param bd [out] Reference to the buffer descriptor pointer. * @@ -481,7 +480,11 @@ rtems_bdbuf_init (void); * @retval RTEMS_INVALID_NUMBER Invalid block size. */ rtems_status_code -rtems_bdbuf_get (dev_t device, rtems_blkdev_bnum block, rtems_bdbuf_buffer** bd); +rtems_bdbuf_get ( + const rtems_disk_device *dd, + rtems_blkdev_bnum block, + rtems_bdbuf_buffer** bd +); /** * Get the block buffer and if not already in the cache read from the disk. If @@ -498,8 +501,7 @@ rtems_bdbuf_get (dev_t device, rtems_blkdev_bnum block, rtems_bdbuf_buffer** bd) * buffer is returned. The highest priority waiter will obtain the buffer * first. * - * @param device [in] Device number (constructed of major and minor device - * number). + * @param dd [in] The disk device. * @param block [in] Linear media block number. * @param bd [out] Reference to the buffer descriptor pointer. * @@ -510,7 +512,11 @@ rtems_bdbuf_get (dev_t device, rtems_blkdev_bnum block, rtems_bdbuf_buffer** bd) * @retval RTEMS_IO_ERROR IO error. */ rtems_status_code -rtems_bdbuf_read (dev_t device, rtems_blkdev_bnum block, rtems_bdbuf_buffer** bd); +rtems_bdbuf_read ( + const rtems_disk_device *dd, + rtems_blkdev_bnum block, + rtems_bdbuf_buffer** bd +); /** * Release the buffer obtained by a read call back to the cache. If the buffer @@ -575,31 +581,22 @@ rtems_bdbuf_sync (rtems_bdbuf_buffer* bd); * @note Nesting calls to sync multiple devices will be handled sequentially. A * nested call will be blocked until the first sync request has complete. * - * @param dev [in] Device number (constructed of major and minor device - * number). + * @param dd [in] The disk device. * * @retval RTEMS_SUCCESSFUL Successful operation. * @retval RTEMS_NOT_CONFIGURED Not initialized. * @retval RTEMS_INVALID_ID No such device. */ rtems_status_code -rtems_bdbuf_syncdev (dev_t dev); +rtems_bdbuf_syncdev (const rtems_disk_device *dd); /** - * @brief Purges all buffers that matches the device identifier @a dev. + * @brief Purges all buffers corresponding to the disk device @a dd. * * This may result in loss of data. */ void -rtems_bdbuf_purge_dev (dev_t dev); - -/** - * @brief Purges all buffers that matches the device major number @a major. - * - * This may result in loss of data. - */ -void -rtems_bdbuf_purge_major (rtems_device_major_number major); +rtems_bdbuf_purge_dev (const rtems_disk_device *dd); /** @} */ |