xfs_file_aio_write_checks: switch to iocb/iov_iter
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
parent
0fa6b005af
commit
99733fa372
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@ -544,17 +544,18 @@ xfs_zero_eof(
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*/
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STATIC ssize_t
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xfs_file_aio_write_checks(
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struct file *file,
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loff_t *pos,
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size_t *count,
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struct kiocb *iocb,
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struct iov_iter *from,
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int *iolock)
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{
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struct file *file = iocb->ki_filp;
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struct inode *inode = file->f_mapping->host;
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struct xfs_inode *ip = XFS_I(inode);
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int error = 0;
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size_t count = iov_iter_count(from);
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restart:
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error = generic_write_checks(file, pos, count);
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error = generic_write_checks(file, &iocb->ki_pos, &count);
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if (error)
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return error;
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@ -569,7 +570,7 @@ restart:
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* iolock shared, we need to update it to exclusive which implies
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* having to redo all checks before.
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*/
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if (*pos > i_size_read(inode)) {
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if (iocb->ki_pos > i_size_read(inode)) {
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bool zero = false;
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if (*iolock == XFS_IOLOCK_SHARED) {
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@ -578,10 +579,11 @@ restart:
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xfs_rw_ilock(ip, *iolock);
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goto restart;
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}
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error = xfs_zero_eof(ip, *pos, i_size_read(inode), &zero);
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error = xfs_zero_eof(ip, iocb->ki_pos, i_size_read(inode), &zero);
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if (error)
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return error;
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}
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iov_iter_truncate(from, count);
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/*
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* Updating the timestamps will grab the ilock again from
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@ -678,10 +680,11 @@ xfs_file_dio_aio_write(
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xfs_rw_ilock(ip, iolock);
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}
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ret = xfs_file_aio_write_checks(file, &pos, &count, &iolock);
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ret = xfs_file_aio_write_checks(iocb, from, &iolock);
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if (ret)
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goto out;
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iov_iter_truncate(from, count);
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count = iov_iter_count(from);
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pos = iocb->ki_pos;
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if (mapping->nrpages) {
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ret = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
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@ -734,24 +737,22 @@ xfs_file_buffered_aio_write(
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ssize_t ret;
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int enospc = 0;
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int iolock = XFS_IOLOCK_EXCL;
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loff_t pos = iocb->ki_pos;
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size_t count = iov_iter_count(from);
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xfs_rw_ilock(ip, iolock);
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ret = xfs_file_aio_write_checks(file, &pos, &count, &iolock);
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ret = xfs_file_aio_write_checks(iocb, from, &iolock);
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if (ret)
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goto out;
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iov_iter_truncate(from, count);
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/* We can write back this queue in page reclaim */
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current->backing_dev_info = inode_to_bdi(inode);
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write_retry:
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trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, 0);
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ret = generic_perform_write(file, from, pos);
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trace_xfs_file_buffered_write(ip, iov_iter_count(from),
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iocb->ki_pos, 0);
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ret = generic_perform_write(file, from, iocb->ki_pos);
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if (likely(ret >= 0))
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iocb->ki_pos = pos + ret;
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iocb->ki_pos += ret;
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/*
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* If we hit a space limit, try to free up some lingering preallocated
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