vfs: Introduce filemap_fdatawait_range

This simple helper saves some filesystems conversion from byte offset
to page numbers and also makes the fdata* interface more complete.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara
2009-08-17 19:30:27 +02:00
parent 86d710146f
commit d3bccb6f4b
2 changed files with 22 additions and 0 deletions

View File

@@ -2086,6 +2086,8 @@ extern int write_inode_now(struct inode *, int);
extern int filemap_fdatawrite(struct address_space *);
extern int filemap_flush(struct address_space *);
extern int filemap_fdatawait(struct address_space *);
extern int filemap_fdatawait_range(struct address_space *, loff_t lstart,
loff_t lend);
extern int filemap_write_and_wait(struct address_space *mapping);
extern int filemap_write_and_wait_range(struct address_space *mapping,
loff_t lstart, loff_t lend);