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ext4: Ignore i_file_acl_high unless EXT4_FEATURE_INCOMPAT_64BIT is present

Message ID 1240605957-13512-2-git-send-email-tytso@mit.edu
State Accepted, archived
Headers show

Commit Message

Theodore Ts'o April 24, 2009, 8:45 p.m. UTC 
Don't try to look at i_file_acl_high unless the INCOMPAT_64BIT feature
bit is set.  The field is normally zero, but older versions of e2fsck
didn't automatically check to make sure of this, so in the spirit of
"be liberal in what you accept", don't look at i_file_acl_high unless
we are using a 64-bit filesystem.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inode.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index cab75bb..1146003 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4357,11 +4357,9 @@  struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
 	ei->i_flags = le32_to_cpu(raw_inode->i_flags);
 	inode->i_blocks = ext4_inode_blocks(raw_inode, ei);
 	ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl_lo);
-	if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
-	    cpu_to_le32(EXT4_OS_HURD)) {
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_64BIT))
 		ei->i_file_acl |=
 			((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
-	}
 	inode->i_size = ext4_isize(raw_inode);
 	ei->i_disksize = inode->i_size;
 	inode->i_generation = le32_to_cpu(raw_inode->i_generation);