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[PATCH] Fix reiserfs deadlock 

reiserfs_cache_default_acl() should return whether we successfully found
the acl or not.  We have to return correct value even if reiserfs_get_acl()
returns error code and not just 0.  Otherwise callers such as
reiserfs_mkdir() can unnecessarily lock the xattrs and later functions such
as reiserfs_new_inode() fail to notice that we have already taken the lock
and try to take it again with obvious consequences.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jan Kara 2006-04-22 02:36:24 -07:00 committed by Linus Torvalds
parent 8c4335a87c
commit b9251b823b
1 changed files with 3 additions and 2 deletions
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3
fs/reiserfs/xattr_acl.c
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@ -408,7 +408,8 @@ int reiserfs_cache_default_acl(struct inode *inode)
acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT); acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
reiserfs_read_unlock_xattrs(inode->i_sb); reiserfs_read_unlock_xattrs(inode->i_sb);
reiserfs_read_unlock_xattr_i(inode); reiserfs_read_unlock_xattr_i(inode);
ret = acl ? 1 : 0; ret = (acl && !IS_ERR(acl));
if (ret)
posix_acl_release(acl); posix_acl_release(acl);
} }