fs: move inode_dio_wait calls into ->setattr
Let filesystems handle waiting for direct I/O requests themselves instead
of doing it beforehand. This means filesystem-specific locks to prevent
new dio referenes from appearing can be held. This is important to allow
generalizing i_dio_count to non-DIO_LOCKING filesystems.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 2f3f531..9f32315 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -110,6 +110,8 @@
if ((iattr->ia_valid & ATTR_SIZE) &&
iattr->ia_size != i_size_read(inode)) {
+ inode_dio_wait(inode);
+
rc = vmtruncate(inode, iattr->ia_size);
if (rc)
return rc;