Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus

* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
  Squashfs: cody tidying, remove commented out line in Makefile
  Squashfs: check page size is not larger than the filesystem block size
  Squashfs: fix breakage when page size > metadata block size

diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index 8258cf9a0317cce0ed974b4d9a895c43098dd12a..70e3244fa30f6e67ec14df4f0a8d99ddd4d9719e 100644 (file)
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -5,4 +5,3 @@
 obj-$(CONFIG_SQUASHFS) += squashfs.o
 squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
 squashfs-y += namei.o super.o symlink.o
-#squashfs-y += squashfs2_0.o

diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index 1c4739e33af638bf819278c755e2d656ec64288d..40c98fa6b5d6a779d94bbb6b937a67a8c053d8c7 100644 (file)
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -252,6 +252,7 @@ struct squashfs_cache *squashfs_cache_init(char *name, int entries,
        cache->entries = entries;
        cache->block_size = block_size;
        cache->pages = block_size >> PAGE_CACHE_SHIFT;
+       cache->pages = cache->pages ? cache->pages : 1;
        cache->name = name;
        cache->num_waiters = 0;
        spin_lock_init(&cache->lock);

diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index ffa6edcd2d0cd30822490df1b2d9ebcde4b44867..0adc624c956f7b5994a2ad2a9add6dbd97fc4f76 100644 (file)
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -157,6 +157,16 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
        if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)
                goto failed_mount;
 
+       /*
+        * Check the system page size is not larger than the filesystem
+        * block size (by default 128K).  This is currently not supported.
+        */
+       if (PAGE_CACHE_SIZE > msblk->block_size) {
+               ERROR("Page size > filesystem block size (%d).  This is "
+                       "currently not supported!\n", msblk->block_size);
+               goto failed_mount;
+       }
+
        msblk->block_log = le16_to_cpu(sblk->block_log);
        if (msblk->block_log > SQUASHFS_FILE_MAX_LOG)
                goto failed_mount;