bio_release_pages

Name:bio_release_pages

Proto:void bio_release_pages(struct bio *bio, bool mark_dirty)

Type:void

Parameter:

Type	Parameter	Name
struct bio *	bio
bool	mark_dirty

880

If bio_flagged(bio, BIO_NO_PAGE_REF) Then Return

884

If mark_dirty && Not PageCompound(bv_page) Then set_page_dirty() is racy if the caller has no reference against* CPU could truncate the page off the mapping and then free the mapping.* Usually, the page _is_ locked, or the caller is a user-space process which

886

put_page(bv_page)

**Caller**
Name	Describe
bio_map_user_iov	_map_user_iov - map user iovec into bio@q: the struct request_queue for the bio@iter: iovec iterator@gfp_mask: memory allocation flags Map the user space address into a bio suitable for io to a block* device. Returns an error pointer in case of error.
bio_unmap_user	_unmap_user - unmap a bio@bio: the bio being unmapped Unmap a bio previously mapped by bio_map_user_iov(). Must be called from* process context.* bio_unmap_user() may sleep.
bio_dirty_fn	_check_pages_dirty() will check that all the BIO's pages are still dirty.* If they are, then fine. If, however, some pages are clean then they must* have been written out during the direct-IO read. So we take another ref on
bio_check_pages_dirty
blkdev_bio_end_io
dio_bio_complete
iomap_dio_bio_end_io

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