From f224fc4424dd459f641ae1b2e2766ec7d727a23f Mon Sep 17 00:00:00 2001
From: wangdi <wangdi>
Date: Mon, 30 Jun 2008 18:59:15 +0000
Subject: [PATCH] Branch b1_6 Two minor fixes for stride read-ahead. b=14483
i=adilger
---
lustre/llite/rw.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lustre/llite/rw.c b/lustre/llite/rw.c
index ef484d985f..e79fa25ec2 100644
--- a/lustre/llite/rw.c
+++ b/lustre/llite/rw.c
@@ -1251,7 +1251,7 @@ stride_pg_count(pgoff_t st_off, unsigned long st_len, unsigned long st_pgs,
unsigned long off, unsigned length)
{
unsigned long cont_len = st_off > off ? st_off - off : 0;
- unsigned long stride_len = length + off > st_off ?
+ __u64 stride_len = length + off > st_off ?
length + off + 1 - st_off : 0;
unsigned long left, pg_count;
@@ -1409,7 +1409,7 @@ static int ll_readahead(struct ll_readahead_state *ras,
RETURN(0);
reserved = ll_ra_count_get(ll_i2sbi(inode), len);
- if (reserved < end - start + 1)
+ if (reserved < len)
ll_ra_stats_inc(mapping, RA_STAT_MAX_IN_FLIGHT);
CDEBUG(D_READA, "reserved page %lu \n", reserved);
--
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