From: Roel Kluin <roel.kluin@gmail.com>
To: jack@suse.cz, LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] udf: remove redundant tests on unsigned
Date: Mon, 22 Jun 2009 23:12:29 +0200 [thread overview]
Message-ID: <4A3FF3BD.1040702@gmail.com> (raw)
first_block and goal are unsigned. When negative they are wrapped and caught by
the other test.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index e48e9a3..1e06853 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -238,7 +238,7 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);
part_len = sbi->s_partmaps[partition].s_partition_len;
- if (first_block < 0 || first_block >= part_len)
+ if (first_block >= part_len)
goto out;
if (first_block + block_count > part_len)
@@ -297,7 +297,7 @@ static int udf_bitmap_new_block(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);
repeat:
- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
+ if (goal >= sbi->s_partmaps[partition].s_partition_len)
goal = 0;
nr_groups = bitmap->s_nr_groups;
@@ -666,8 +666,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
int8_t etype = -1;
struct udf_inode_info *iinfo;
- if (first_block < 0 ||
- first_block >= sbi->s_partmaps[partition].s_partition_len)
+ if (first_block >= sbi->s_partmaps[partition].s_partition_len)
return 0;
iinfo = UDF_I(table);
@@ -743,7 +742,7 @@ static int udf_table_new_block(struct super_block *sb,
return newblock;
mutex_lock(&sbi->s_alloc_mutex);
- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
+ if (goal >= sbi->s_partmaps[partition].s_partition_len)
goal = 0;
/* We search for the closest matching block to goal. If we find
next reply other threads:[~2009-06-22 19:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-22 21:12 Roel Kluin [this message]
2009-06-24 11:48 ` [PATCH] udf: remove redundant tests on unsigned Jan Kara
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4A3FF3BD.1040702@gmail.com \
--to=roel.kluin@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=jack@suse.cz \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox