On Fri, 2024-07-05 at 16:16 +0800, ed.tsai@xxxxxxxxxxxx wrote: > From: Ed Tsai <ed.tsai@xxxxxxxxxxxx> > > Filesystems may define their own splice write. Therefore, use file > fops instead of invoking iter_file_splice_write() directly. > > Signed-off-by: Ed Tsai <ed.tsai@xxxxxxxxxxxx> > --- > fs/backing-file.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/fs/backing-file.c b/fs/backing-file.c > index 740185198db3..687a7fae7d25 100644 > --- a/fs/backing-file.c > +++ b/fs/backing-file.c > @@ -280,13 +280,16 @@ ssize_t backing_file_splice_write(struct > pipe_inode_info *pipe, > if (WARN_ON_ONCE(!(out->f_mode & FMODE_BACKING))) > return -EIO; > > + if (out->f_op->splice_write) > + return -EINVAL; > + > ret = file_remove_privs(ctx->user_file); > if (ret) > return ret; > > old_cred = override_creds(ctx->cred); > file_start_write(out); > - ret = iter_file_splice_write(pipe, out, ppos, len, flags); > + ret = out->f_op->splice_write(pipe, out, ppos, len, flags); > file_end_write(out); > revert_creds(old_cred); > s/covert/convert/ for subject
