X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fsquashfs%2Fsuper.c;h=0adc624c956f7b5994a2ad2a9add6dbd97fc4f76;hb=fffb47b80e8bb3f171ef02b90b1ae22c63983979;hp=ffa6edcd2d0cd30822490df1b2d9ebcde4b44867;hpb=a37b06d589f2c687a38d07569f4ef97c650fde39;p=pandora-kernel.git

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;