diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/filemap.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index f863e1d7e22..3587554f45e 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2462,45 +2462,6 @@ out: } EXPORT_SYMBOL(__generic_file_aio_write); - -/** - * generic_file_aio_write_nolock - write data, usually to a device - * @iocb: IO state structure - * @iov: vector with data to write - * @nr_segs: number of segments in the vector - * @pos: position in file where to write - * - * This is a wrapper around __generic_file_aio_write() which takes care of - * syncing the file in case of O_SYNC file. It does not take i_mutex for the - * write itself but may do so during syncing. It is meant for users like block - * devices which do not need i_mutex during write. If your filesystem needs to - * do a write but already holds i_mutex, use __generic_file_aio_write() - * directly and then sync the file like generic_file_aio_write(). - */ -ssize_t generic_file_aio_write_nolock(struct kiocb *iocb, - const struct iovec *iov, unsigned long nr_segs, loff_t pos) -{ - struct file *file = iocb->ki_filp; - struct address_space *mapping = file->f_mapping; - struct inode *inode = mapping->host; - ssize_t ret; - - BUG_ON(iocb->ki_pos != pos); - - ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos); - - if ((ret > 0 || ret == -EIOCBQUEUED) && - ((file->f_flags & O_SYNC) || IS_SYNC(inode))) { - ssize_t err; - - err = sync_page_range_nolock(inode, mapping, pos, ret); - if (err < 0 && ret > 0) - ret = err; - } - return ret; -} -EXPORT_SYMBOL(generic_file_aio_write_nolock); - /** * generic_file_aio_write - write data to a file * @iocb: IO state structure |