[GFS2] Fix debug inode printing

[linux-2.6] / fs / gfs2 / inode.c

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 728d3169e7bd5b32b112bf29852d52c394ef6915..db5961a9aa59fa54ebba202a08742aaf482e96a1 100644 (file)
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
@@ -240,7 +240,7 @@ fail_put:
        ip->i_gl->gl_object = NULL;
        gfs2_glock_put(ip->i_gl);
 fail:
-       iput(inode);
+       iget_failed(inode);
        return ERR_PTR(error);
 }
 
@@ -248,12 +248,10 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 {
        struct gfs2_dinode_host *di = &ip->i_di;
        const struct gfs2_dinode *str = buf;
+       u16 height;
 
-       if (ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)) {
-               if (gfs2_consist_inode(ip))
-                       gfs2_dinode_print(ip);
-               return -EIO;
-       }
+       if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
+               goto corrupt;
        ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
        ip->i_inode.i_mode = be32_to_cpu(str->di_mode);
        ip->i_inode.i_rdev = 0;
@@ -290,7 +288,10 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 
        di->di_flags = be32_to_cpu(str->di_flags);
        gfs2_set_inode_flags(&ip->i_inode);
-       di->di_height = be16_to_cpu(str->di_height);
+       height = be16_to_cpu(str->di_height);
+       if (unlikely(height > GFS2_MAX_META_HEIGHT))
+               goto corrupt;
+       ip->i_height = (u8)height;
 
        di->di_depth = be16_to_cpu(str->di_depth);
        di->di_entries = be32_to_cpu(str->di_entries);
@@ -300,6 +301,10 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
                gfs2_set_aops(&ip->i_inode);
 
        return 0;
+corrupt:
+       if (gfs2_consist_inode(ip))
+               gfs2_dinode_print(ip);
+       return -EIO;
 }
 
 /**
@@ -1401,7 +1406,7 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
        str->di_generation = cpu_to_be64(di->di_generation);
 
        str->di_flags = cpu_to_be32(di->di_flags);
-       str->di_height = cpu_to_be16(di->di_height);
+       str->di_height = cpu_to_be16(ip->i_height);
        str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
                                             !(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
                                             GFS2_FORMAT_DE : 0);
@@ -1430,7 +1435,7 @@ void gfs2_dinode_print(const struct gfs2_inode *ip)
        printk(KERN_INFO "  di_goal_data = %llu\n",
               (unsigned long long)di->di_goal_data);
        printk(KERN_INFO "  di_flags = 0x%.8X\n", di->di_flags);
-       printk(KERN_INFO "  di_height = %u\n", di->di_height);
+       printk(KERN_INFO "  i_height = %u\n", ip->i_height);
        printk(KERN_INFO "  di_depth = %u\n", di->di_depth);
        printk(KERN_INFO "  di_entries = %u\n", di->di_entries);
        printk(KERN_INFO "  di_eattr = %llu\n",