Function report |
Source Code:include\linux\uio.h |
Create Date:2022-07-28 05:47:06 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:Cap the iov_iter by given limit; note that the second argument is* *not* the new size - it's upper limit for such. Passing it a value* greater than the amount of data in iov_iter is fine - it'll just do* nothing in that case.
Proto:static inline void iov_iter_truncate(struct iov_iter *i, u64 count)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct iov_iter * | i | |
u64 | count |
Name | Describe |
---|---|
generic_file_buffered_read | generic_file_buffered_read - generic file read routine*@iocb: the iocb to read*@iter: data destination*@written: already copied* This is a generic file read routine, and uses the* mapping->a_ops->readpage() function for the actual low-level stuff. |
generic_write_checks | Performs necessary checks before doing a write* Can adjust writing position or amount of bytes to write.* Returns appropriate error code that caller should return or* zero in case that write should be allowed. |
sg_io | |
blkdev_write_iter | Write data to the block device. Only intended for the block device itself* and the raw driver which basically is a fake block device.* Does not take i_mutex for the write and thus is not for general purpose* use. |
blkdev_read_iter | |
iomap_dio_bio_actor |
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