The patch titled
squashfs: fix breakage when pagesize > blocksize
has been added to the -mm tree. Its filename is
squashfs-fix-breakage-when-pagesize-blocksize.patch
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------------------------------------------------------
Subject: squashfs: fix breakage when pagesize > blocksize
From: Doug Chapman <doug.chapman@xxxxxx>
Squashfs is broken on any system where the pageszie is larger than either
the block size of the squashfs image or larger than the metadata size
(8192). This is easily fixed by ensuring cache->pages is always > 0.
Signed-off-by: Doug Chapman <doug.chapman@xxxxxx>
Cc: Phillip Lougher <phillip@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/squashfs/cache.c | 1 +
1 file changed, 1 insertion(+)
diff -puN fs/squashfs/cache.c~squashfs-fix-breakage-when-pagesize-blocksize fs/squashfs/cache.c
--- a/fs/squashfs/cache.c~squashfs-fix-breakage-when-pagesize-blocksize
+++ a/fs/squashfs/cache.c
@@ -252,6 +252,7 @@ struct squashfs_cache *squashfs_cache_in
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);
_
Patches currently in -mm which might be from doug.chapman@xxxxxx are
squashfs-fix-breakage-when-pagesize-blocksize.patch
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