[PATCH 3/3] xfsprogs: remove useless do_preadv and do_pwritev arguments

[Zorro Lang <zlang@redhat.com>]

do_preadv and do_pwritev all have a 'buffer_size' argument, but they
never used it. Instead of it, they use global 'buffersize' variable,
which is initialized in alloc_buffer(). As the 'buffer_size' is
useless, so remove it for clear code.

Signed-off-by: Zorro Lang <zlang@redhat.com>
---
 io/pread.c  | 7 +++----
 io/pwrite.c | 5 ++---
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/io/pread.c b/io/pread.c
index 60650aa3..98e992b0 100644
--- a/io/pread.c
+++ b/io/pread.c
@@ -176,8 +176,7 @@ static ssize_t
 do_preadv(
 	int		fd,
 	off64_t		offset,
-	size_t		count,
-	size_t		buffer_size)
+	size_t		count)
 {
 	int		vecs = 0;
 	ssize_t		oldlen = 0;
@@ -205,7 +204,7 @@ do_preadv(
 	return bytes;
 }
 #else
-#define do_preadv(fd, offset, count, buffer_size) (0)
+#define do_preadv(fd, offset, count) (0)
 #endif
 
 static ssize_t
@@ -218,7 +217,7 @@ do_pread(
 	if (!vectors)
 		return pread(fd, buffer, min(count, buffer_size), offset);
 
-	return do_preadv(fd, offset, count, buffer_size);
+	return do_preadv(fd, offset, count);
 }
 
 static int
diff --git a/io/pwrite.c b/io/pwrite.c
index a89edfd0..f75c6164 100644
--- a/io/pwrite.c
+++ b/io/pwrite.c
@@ -66,7 +66,6 @@ do_pwritev(
 	int		fd,
 	off64_t		offset,
 	size_t		count,
-	size_t		buffer_size,
 	int 		pwritev2_flags)
 {
 	int vecs = 0;
@@ -102,7 +101,7 @@ do_pwritev(
 	return bytes;
 }
 #else
-#define do_pwritev(fd, offset, count, buffer_size, pwritev2_flags) (0)
+#define do_pwritev(fd, offset, count, pwritev2_flags) (0)
 #endif
 
 static ssize_t
@@ -116,7 +115,7 @@ do_pwrite(
 	if (!vectors)
 		return pwrite(fd, buffer, min(count, buffer_size), offset);
 
-	return do_pwritev(fd, offset, count, buffer_size, pwritev2_flags);
+	return do_pwritev(fd, offset, count, pwritev2_flags);
 }
 
 static int
-- 
2.13.6