[patch] preserve fast-path in buffer.c

Andrea Arcangeli (andrea@suse.de)
Mon, 9 Aug 1999 01:22:34 +0200 (CEST)

The fast path is the case where create_buffer is succesfully so it worth
to take it inline.

diff -ur 2.3.13-pre8/fs/buffer.c 2.3.13-pre8-tmp/fs/buffer.c
--- 2.3.13-pre8/fs/buffer.c Sun Aug 8 17:21:37 1999
+++ 2.3.13-pre8-tmp/fs/buffer.c Mon Aug 9 01:21:02 1999
@@ -1911,10 +1911,8 @@
if (!(page = __get_free_page(GFP_BUFFER)))
return 0;
bh = create_buffers(page, size, 0);
- if (!bh) {
- free_page(page);
- return 0;
- }
+ if (!bh)
+ goto no_buffer_head;

isize = BUFSIZE_INDEX(size);

@@ -1944,6 +1942,10 @@
mem_map[MAP_NR(page)].buffers = bh;
atomic_add(PAGE_SIZE, &buffermem);
return 1;
+
+no_buffer_head:
+ free_page(page);
+ return 0;
}

/*

Andrea

-
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