X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fs%2Fhfsplus%2Fwrapper.c;h=175d08eacc868226d581d46a2101169bd103f096;hb=27e88bf6af7d42adf790f7b2ed7d65475f191cf2;hp=95455e839231ee33a186485204ffc91fa193efeb;hpb=a7c243b544c0e9f6775c2607decaa59d54fb9e11;p=linux-2.6-block.git

diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 95455e839231..175d08eacc86 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -28,8 +28,11 @@ static int hfsplus_read_mdb(void *bufptr, struct hfsplus_wd *wd)
 {
 	u32 extent;
 	u16 attrib;
+	__be16 sig;
 
-	if (be16_to_cpu(*(__be16 *)(bufptr + HFSP_WRAPOFF_EMBEDSIG)) != HFSPLUS_VOLHEAD_SIG)
+	sig = *(__be16 *)(bufptr + HFSP_WRAPOFF_EMBEDSIG);
+	if (sig != cpu_to_be16(HFSPLUS_VOLHEAD_SIG) &&
+	    sig != cpu_to_be16(HFSPLUS_VOLHEAD_SIGX))
 		return 0;
 
 	attrib = be16_to_cpu(*(__be16 *)(bufptr + HFSP_WRAPOFF_ATTRIB));
@@ -44,7 +47,7 @@ static int hfsplus_read_mdb(void *bufptr, struct hfsplus_wd *wd)
 		return 0;
 	wd->ablk_start = be16_to_cpu(*(__be16 *)(bufptr + HFSP_WRAPOFF_ABLKSTART));
 
-	extent = be32_to_cpu(get_unaligned((__be32 *)(bufptr + HFSP_WRAPOFF_EMBEDEXT)));
+	extent = get_unaligned_be32(bufptr + HFSP_WRAPOFF_EMBEDEXT);
 	wd->embed_start = (extent >> 16) & 0xFFFF;
 	wd->embed_count = extent & 0xFFFF;
 
@@ -70,7 +73,7 @@ static int hfsplus_get_last_session(struct super_block *sb,
 			*start = (sector_t)te.cdte_addr.lba << 2;
 			return 0;
 		}
-		printk(KERN_ERR "HFS: Invalid session number or type of track\n");
+		printk(KERN_ERR "hfs: invalid session number or type of track\n");
 		return -EINVAL;
 	}
 	ms_info.addr_format = CDROM_LBA;
@@ -114,6 +117,10 @@ int hfsplus_read_wrapper(struct super_block *sb)
 		}
 		if (vhdr->signature == cpu_to_be16(HFSPLUS_VOLHEAD_SIG))
 			break;
+		if (vhdr->signature == cpu_to_be16(HFSPLUS_VOLHEAD_SIGX)) {
+			HFSPLUS_SB(sb).flags |= HFSPLUS_SB_HFSX;
+			break;
+		}
 		brelse(bh);
 
 		/* check for a partition block
@@ -143,7 +150,7 @@ int hfsplus_read_wrapper(struct super_block *sb)
 		blocksize >>= 1;
 
 	if (sb_set_blocksize(sb, blocksize) != blocksize) {
-		printk("HFS+: unable to blocksize to %u!\n", blocksize);
+		printk(KERN_ERR "hfs: unable to set blocksize to %u!\n", blocksize);
 		return -EINVAL;
 	}
 
@@ -158,7 +165,9 @@ int hfsplus_read_wrapper(struct super_block *sb)
 		return -EIO;
 
 	/* should still be the same... */
-	if (be16_to_cpu(vhdr->signature) != HFSPLUS_VOLHEAD_SIG)
+	if (vhdr->signature != (HFSPLUS_SB(sb).flags & HFSPLUS_SB_HFSX ?
+				cpu_to_be16(HFSPLUS_VOLHEAD_SIGX) :
+				cpu_to_be16(HFSPLUS_VOLHEAD_SIG)))
 		goto error;
 	HFSPLUS_SB(sb).s_vhbh = bh;
 	HFSPLUS_SB(sb).s_vhdr = vhdr;