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path: root/fs/xfs/xfs_file.c
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Diffstat (limited to 'fs/xfs/xfs_file.c')
-rw-r--r--fs/xfs/xfs_file.c32
1 files changed, 23 insertions, 9 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index e47425071e65..1f2e2845eb76 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -507,7 +507,7 @@ xfs_file_dio_aio_write(
* We can't properly handle unaligned direct I/O to reflink
* files yet, as we can't unshare a partial block.
*/
- if (xfs_is_reflink_inode(ip)) {
+ if (xfs_is_cow_inode(ip)) {
trace_xfs_reflink_bounce_dio_write(ip, iocb->ki_pos, count);
return -EREMCHG;
}
@@ -872,14 +872,27 @@ xfs_file_fallocate(
goto out_unlock;
}
- if (mode & FALLOC_FL_ZERO_RANGE)
+ if (mode & FALLOC_FL_ZERO_RANGE) {
error = xfs_zero_file_space(ip, offset, len);
- else {
- if (mode & FALLOC_FL_UNSHARE_RANGE) {
- error = xfs_reflink_unshare(ip, offset, len);
- if (error)
- goto out_unlock;
+ } else if (mode & FALLOC_FL_UNSHARE_RANGE) {
+ error = xfs_reflink_unshare(ip, offset, len);
+ if (error)
+ goto out_unlock;
+
+ if (!xfs_is_always_cow_inode(ip)) {
+ error = xfs_alloc_file_space(ip, offset, len,
+ XFS_BMAPI_PREALLOC);
}
+ } else {
+ /*
+ * If always_cow mode we can't use preallocations and
+ * thus should not create them.
+ */
+ if (xfs_is_always_cow_inode(ip)) {
+ error = -EOPNOTSUPP;
+ goto out_unlock;
+ }
+
error = xfs_alloc_file_space(ip, offset, len,
XFS_BMAPI_PREALLOC);
}
@@ -1068,10 +1081,10 @@ xfs_file_llseek(
default:
return generic_file_llseek(file, offset, whence);
case SEEK_HOLE:
- offset = iomap_seek_hole(inode, offset, &xfs_iomap_ops);
+ offset = iomap_seek_hole(inode, offset, &xfs_seek_iomap_ops);
break;
case SEEK_DATA:
- offset = iomap_seek_data(inode, offset, &xfs_iomap_ops);
+ offset = iomap_seek_data(inode, offset, &xfs_seek_iomap_ops);
break;
}
@@ -1203,6 +1216,7 @@ const struct file_operations xfs_file_operations = {
.write_iter = xfs_file_write_iter,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
+ .iopoll = iomap_dio_iopoll,
.unlocked_ioctl = xfs_file_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = xfs_file_compat_ioctl,