[PATCH] reiserfs: do not check if unsigned < 0
This patch fixes bugs in reiserfs where unsigned integers were checked
whether they are less then 0.
Signed-off-by: Vladimir V. Saveliev <vs@namesys.com>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Hans Reiser <reiser@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index f347317..be12879 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -1464,13 +1464,11 @@
partially overwritten pages, if needed. And lock the pages,
so that nobody else can access these until we are done.
We get number of actual blocks needed as a result. */
- blocks_to_allocate =
- reiserfs_prepare_file_region_for_write(inode, pos,
- num_pages,
- write_bytes,
- prepared_pages);
- if (blocks_to_allocate < 0) {
- res = blocks_to_allocate;
+ res = reiserfs_prepare_file_region_for_write(inode, pos,
+ num_pages,
+ write_bytes,
+ prepared_pages);
+ if (res < 0) {
reiserfs_release_claimed_blocks(inode->i_sb,
num_pages <<
(PAGE_CACHE_SHIFT -
@@ -1478,6 +1476,8 @@
break;
}
+ blocks_to_allocate = res;
+
/* First we correct our estimate of how many blocks we need */
reiserfs_release_claimed_blocks(inode->i_sb,
(num_pages <<
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index b33d67b..d60f623 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -627,11 +627,6 @@
reiserfs_write_lock(inode->i_sb);
version = get_inode_item_key_version(inode);
- if (block < 0) {
- reiserfs_write_unlock(inode->i_sb);
- return -EIO;
- }
-
if (!file_capable(inode, block)) {
reiserfs_write_unlock(inode->i_sb);
return -EFBIG;
@@ -934,12 +929,13 @@
//pos_in_item * inode->i_sb->s_blocksize,
TYPE_INDIRECT, 3); // key type is unimportant
+ RFALSE(cpu_key_k_offset(&tmp_key) > cpu_key_k_offset(&key),
+ "green-805: invalid offset");
blocks_needed =
1 +
((cpu_key_k_offset(&key) -
cpu_key_k_offset(&tmp_key)) >> inode->i_sb->
s_blocksize_bits);
- RFALSE(blocks_needed < 0, "green-805: invalid offset");
if (blocks_needed == 1) {
un = &unf_single;
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index b7a1795..5a9d272 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2319,8 +2319,7 @@
return 1;
}
jh = (struct reiserfs_journal_header *)(journal->j_header_bh->b_data);
- if (le32_to_cpu(jh->j_first_unflushed_offset) >= 0 &&
- le32_to_cpu(jh->j_first_unflushed_offset) <
+ if (le32_to_cpu(jh->j_first_unflushed_offset) <
SB_ONDISK_JOURNAL_SIZE(p_s_sb)
&& le32_to_cpu(jh->j_last_flush_trans_id) > 0) {
oldest_start =