iov_iter_reexpand(to, iov_iter_count(to) + shorted);
return ret;
}
- EXPORT_SYMBOL_GPL(blkdev_read_iter);
-/*
- * Try to release a page associated with block device when the system
- * is under memory pressure.
- */
-static int blkdev_releasepage(struct page *page, gfp_t wait)
-{
- struct super_block *super = BDEV_I(page->mapping->host)->bdev.bd_super;
-
- if (super && super->s_op->bdev_try_to_free_page)
- return super->s_op->bdev_try_to_free_page(super, page, wait);
-
- return try_to_free_buffers(page);
-}
-
static int blkdev_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value);
int sdw_read_no_pm(struct sdw_slave *slave, u32 addr);
int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val);
- int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, u8 *val);
+ int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val);
+int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val);
+int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val);
+
int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id);
void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id);