proc: wire up generic_file_splice_read for iter ops

Wire up generic_file_splice_read for the iter based proxy ops, so
that splice reads from them work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 58c075e..bde6b6f 100644 (file)
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -597,6 +597,7 @@ static const struct file_operations proc_iter_file_ops = {
        .llseek         = proc_reg_llseek,
        .read_iter      = proc_reg_read_iter,
        .write          = proc_reg_write,
+       .splice_read    = generic_file_splice_read,
        .poll           = proc_reg_poll,
        .unlocked_ioctl = proc_reg_unlocked_ioctl,
        .mmap           = proc_reg_mmap,
@@ -622,6 +623,7 @@ static const struct file_operations proc_reg_file_ops_compat = {
 static const struct file_operations proc_iter_file_ops_compat = {
        .llseek         = proc_reg_llseek,
        .read_iter      = proc_reg_read_iter,
+       .splice_read    = generic_file_splice_read,
        .write          = proc_reg_write,
        .poll           = proc_reg_poll,
        .unlocked_ioctl = proc_reg_unlocked_ioctl,