[PATCH 5.10 49/54] nilfs2: make splice write available again

Greg Kroah-Hartman
2021-02-11T15:44:01Z

From: Joachim Henke <joachim.henke@t-systems.com>

commit a35d8f016e0b68634035217d06d1c53863456b50 upstream.

Since 5.10, splice() or sendfile() to NILFS2 return EINVAL. This was
caused by commit 36e2c7421f02 ("fs: don't allow splice read/write
without explicit ops").

This patch initializes the splice_write field in file_operations, like
most file systems do, to restore the functionality.

Link: https://lkml.kernel.org/r/1612784101-14353-1-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Joachim Henke <joachim.henke@t-systems.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org> [5.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/file.c | 1 +
1 file changed, 1 insertion(+)

--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -141,6 +141,7 @@ const struct file_operations nilfs_file_
/* .release = nilfs_release_file, */
.fsync = nilfs_sync_file,
.splice_read = generic_file_splice_read,
+ .splice_write = iter_file_splice_write,
};

const struct inode_operations nilfs_file_inode_operations = {