Squashfs: fix breakage when page size > metadata block size
Squashfs is broken on any system where the page size is larger than the metadata size (8192). This is easily fixed by ensuring cache->pages is always > 0. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Doug Chapman <doug.chapman@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
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@ -252,6 +252,7 @@ struct squashfs_cache *squashfs_cache_init(char *name, int entries,
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cache->entries = entries;
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cache->block_size = block_size;
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cache->pages = block_size >> PAGE_CACHE_SHIFT;
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cache->pages = cache->pages ? cache->pages : 1;
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cache->name = name;
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cache->num_waiters = 0;
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spin_lock_init(&cache->lock);
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