Merge branches 'sched/cleanups' and 'linus' into sched/core

6 files changed, 24 insertions, 11 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index f18a919be70..627f8c3337a 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -188,7 +188,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
 	struct ext4_group_desc *gdp;
 	struct ext4_super_block *es;
 	struct ext4_sb_info *sbi;
-	int fatal = 0, err, count;
+	int fatal = 0, err, count, cleared;
 	ext4_group_t flex_group;
 
 	if (atomic_read(&inode->i_count) > 1) {
@@ -248,8 +248,10 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
 		goto error_return;
 
 	/* Ok, now we can actually update the inode bitmaps.. */
-	if (!ext4_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
-					bit, bitmap_bh->b_data))
+	spin_lock(sb_bgl_lock(sbi, block_group));
+	cleared = ext4_clear_bit(bit, bitmap_bh->b_data);
+	spin_unlock(sb_bgl_lock(sbi, block_group));
+	if (!cleared)
 		ext4_error(sb, "ext4_free_inode",
 			   "bit already cleared for inode %lu", ino);
 	else {
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index c837dfc2b3c..321728f48f2 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -80,7 +80,7 @@ static struct buffer_head *get_block_length(struct super_block *sb,
  * generated a larger block - this does occasionally happen with zlib).
  */
 int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
-			int length, u64 *next_index, int srclength)
+			int length, u64 *next_index, int srclength, int pages)
 {
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
 	struct buffer_head **bh;
@@ -185,6 +185,14 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 			}
 
 			if (msblk->stream.avail_out == 0) {
+				if (page == pages) {
+					ERROR("zlib_inflate tried to "
+						"decompress too much data, "
+						"expected %d bytes.  Zlib "
+						"data probably corrupt\n",
+						srclength);
+					goto release_mutex;
+				}
 				msblk->stream.next_out = buffer[page++];
 				msblk->stream.avail_out = PAGE_CACHE_SIZE;
 			}
@@ -268,7 +276,8 @@ block_release:
 		put_bh(bh[k]);
 
 read_failure:
-	ERROR("sb_bread failed reading block 0x%llx\n", cur_index);
+	ERROR("squashfs_read_data failed to read block 0x%llx\n",
+					(unsigned long long) index);
 	kfree(bh);
 	return -EIO;
 }
diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index f29eda16d25..1c4739e33af 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -119,7 +119,7 @@ struct squashfs_cache_entry *squashfs_cache_get(struct super_block *sb,
 
 			entry->length = squashfs_read_data(sb, entry->data,
 				block, length, &entry->next_index,
-				cache->block_size);
+				cache->block_size, cache->pages);
 
 			spin_lock(&cache->lock);
 
@@ -406,7 +406,7 @@ int squashfs_read_table(struct super_block *sb, void *buffer, u64 block,
 	for (i = 0; i < pages; i++, buffer += PAGE_CACHE_SIZE)
 		data[i] = buffer;
 	res = squashfs_read_data(sb, data, block, length |
-		SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length);
+		SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length, pages);
 	kfree(data);
 	return res;
 }
diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c
index 7a63398bb85..9101dbde39e 100644
--- a/fs/squashfs/inode.c
+++ b/fs/squashfs/inode.c
@@ -133,7 +133,8 @@ int squashfs_read_inode(struct inode *inode, long long ino)
 	type = le16_to_cpu(sqshb_ino->inode_type);
 	switch (type) {
 	case SQUASHFS_REG_TYPE: {
-		unsigned int frag_offset, frag_size, frag;
+		unsigned int frag_offset, frag;
+		int frag_size;
 		u64 frag_blk;
 		struct squashfs_reg_inode *sqsh_ino = &squashfs_ino.reg;
 
@@ -175,7 +176,8 @@ int squashfs_read_inode(struct inode *inode, long long ino)
 		break;
 	}
 	case SQUASHFS_LREG_TYPE: {
-		unsigned int frag_offset, frag_size, frag;
+		unsigned int frag_offset, frag;
+		int frag_size;
 		u64 frag_blk;
 		struct squashfs_lreg_inode *sqsh_ino = &squashfs_ino.lreg;
 
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index 6b2515d027d..0e9feb6adf7 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -34,7 +34,7 @@ static inline struct squashfs_inode_info *squashfs_i(struct inode *inode)
 
 /* block.c */
 extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
-				int);
+				int, int);
 
 /* cache.c */
 extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 071df5b5b49..681ec0d8379 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -389,7 +389,7 @@ static int __init init_squashfs_fs(void)
 		return err;
 	}
 
-	printk(KERN_INFO "squashfs: version 4.0 (2009/01/03) "
+	printk(KERN_INFO "squashfs: version 4.0 (2009/01/31) "
 		"Phillip Lougher\n");
 
 	return 0;