diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2008-04-30 09:54:53 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 17:29:52 +0200 |
| commit | 3e5a5097303eedb4ffae2719843eb064221b1db4 (patch) | |
| tree | 3b1de7bb20e5f344b4c96a8c5a4830823c1b7b5d /fs/hfs | |
| parent | printk: don't read beyond string arguments' terminating zero (diff) | |
| download | linux-3e5a5097303eedb4ffae2719843eb064221b1db4.tar.xz linux-3e5a5097303eedb4ffae2719843eb064221b1db4.zip | |
hfs: fix warning with 64k PAGE_SIZE
fs/hfs/btree.c: In function 'hfs_bmap_alloc':
fs/hfs/btree.c:263: warning: comparison is always false due to limited range of data type
The patch makes the warning go away, but the code might actually be buggy?
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hfs')
| -rw-r--r-- | fs/hfs/btree.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c index 24cf6fc43021..f6621a785202 100644 --- a/fs/hfs/btree.c +++ b/fs/hfs/btree.c @@ -208,7 +208,9 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) struct hfs_bnode *node, *next_node; struct page **pagep; u32 nidx, idx; - u16 off, len; + unsigned off; + u16 off16; + u16 len; u8 *data, byte, m; int i; @@ -235,7 +237,8 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) node = hfs_bnode_find(tree, nidx); if (IS_ERR(node)) return node; - len = hfs_brec_lenoff(node, 2, &off); + len = hfs_brec_lenoff(node, 2, &off16); + off = off16; off += node->page_offset; pagep = node->page + (off >> PAGE_CACHE_SHIFT); @@ -280,7 +283,8 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) return next_node; node = next_node; - len = hfs_brec_lenoff(node, 0, &off); + len = hfs_brec_lenoff(node, 0, &off16); + off = off16; off += node->page_offset; pagep = node->page + (off >> PAGE_CACHE_SHIFT); data = kmap(*pagep); |