Commit 27d7c2a0 authored by Dan Carpenter's avatar Dan Carpenter Committed by Linus Torvalds

vfs: clear to the end of the buffer on partial buffer reads

READ is zero so the "rw & READ" test is always false.  The intended test
was "((rw & RW_MASK) == READ)".
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent df2fc246
......@@ -2935,7 +2935,7 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh)
bio->bi_io_vec[0].bv_len = bytes;
/* ..and clear the end of the buffer for reads */
if (rw & READ) {
if ((rw & RW_MASK) == READ) {
void *kaddr = kmap_atomic(bh->b_page);
memset(kaddr + bh_offset(bh) + bytes, 0, bh->b_size - bytes);
kunmap_atomic(kaddr);
......
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