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authorIngo Molnar <mingo@elte.hu>2009-06-07 11:34:59 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-07 11:35:05 +0200
commit56fdd18c7b89a2fac1dfe5d54750c9143867fdc4 (patch)
treece48eee7d5960936fa6e385320b7a261a8bee071 /fs/squashfs/super.c
parent7caf6a49bb17d0377210693af5737563b31aa5ee (diff)
parentb87297fb405ef13cac375f202d114323b076a56d (diff)
Merge branch 'linus' into core/iommu
Merge reason: This branch was on an -rc5 base so pull almost-2.6.30 to resync with the latest upstream fixes and make sure the combination works fine. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/squashfs/super.c')
-rw-r--r--fs/squashfs/super.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index ffa6edcd2d0c..0adc624c956f 100644
--- 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;