[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20210903062748.4118886-2-yangerkun@huawei.com>
Date: Fri, 3 Sep 2021 14:27:46 +0800
From: yangerkun <yangerkun@...wei.com>
To: <tytso@....edu>, <jack@...e.cz>
CC: <linux-ext4@...r.kernel.org>, <yangerkun@...wei.com>,
<yukuai3@...wei.com>
Subject: [PATCH 1/3] ext4: correct the left/middle/right debug message for binsearch
The debuginfo for binsearch want to show the left/middle/right extent
while the process search for the goal block. However we show this info
after we change right or left.
Signed-off-by: yangerkun <yangerkun@...wei.com>
---
fs/ext4/extents.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c33e0a2cb6c3..7ae32078b48f 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -713,13 +713,14 @@ ext4_ext_binsearch_idx(struct inode *inode,
r = EXT_LAST_INDEX(eh);
while (l <= r) {
m = l + (r - l) / 2;
+ ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
+ le32_to_cpu(l->ei_block), m, le32_to_cpu(m->ei_block),
+ r, le32_to_cpu(r->ei_block));
+
if (block < le32_to_cpu(m->ei_block))
r = m - 1;
else
l = m + 1;
- ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
- le32_to_cpu(l->ei_block), m, le32_to_cpu(m->ei_block),
- r, le32_to_cpu(r->ei_block));
}
path->p_idx = l - 1;
@@ -781,13 +782,14 @@ ext4_ext_binsearch(struct inode *inode,
while (l <= r) {
m = l + (r - l) / 2;
+ ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
+ le32_to_cpu(l->ee_block), m, le32_to_cpu(m->ee_block),
+ r, le32_to_cpu(r->ee_block));
+
if (block < le32_to_cpu(m->ee_block))
r = m - 1;
else
l = m + 1;
- ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
- le32_to_cpu(l->ee_block), m, le32_to_cpu(m->ee_block),
- r, le32_to_cpu(r->ee_block));
}
path->p_ext = l - 1;
--
2.31.1
Powered by blists - more mailing lists