Debian fixes for AUFS build on 2.6.29+

svn path=/nixpkgs/trunk/; revision=15426

pkgs/os-specific/linux/aufs/debian-2.6.29.diff

@@ -0,0 +1,101 @@
+Debian patch for aufs on 2.6.29
+
+---
+
+Add support for Kernel 2.6.29.
+
+Changes we are affected by:
+ 1. dentry_open() receives a new argument for passing the cred
+ 2. current->fsuid is now current_fsuid()
+ 
+--- a/fs/aufs25/export.c
++++ b/fs/aufs25/export.c
+@@ -384,7 +384,11 @@ static struct dentry *au_lkup_by_ino(str
+ 	if (nsi_lock)
+ 		si_read_unlock(parent->d_sb);
+ 	path_get(path);
++	#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ 	file = dentry_open(parent, path->mnt, au_dir_roflags);
++	#else
++	file = dentry_open(parent, path->mnt, au_dir_roflags, current_cred());
++	#endif
+ 	dentry = (void *)file;
+ 	if (IS_ERR(file))
+ 		goto out;
+--- a/fs/aufs25/file.c
++++ b/fs/aufs25/file.c
+@@ -98,8 +98,13 @@ struct file *au_h_open(struct dentry *de
+ 	h_file = NULL;
+ 	if (file && au_test_nfs(h_dentry->d_sb))
+ 		h_file = au_h_intent(dentry, bindex, file);
+-	if (!h_file)
++	if (!h_file) {
++		#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ 		h_file = dentry_open(dget(h_dentry), mntget(br->br_mnt), flags);
++		#else
++		h_file = dentry_open(dget(h_dentry), mntget(br->br_mnt), flags, current_cred());
++		#endif
++	}
+
+ 	/*
+ 	 * a dirty trick for handling FMODE_EXEC and deny_write_access().
+--- a/fs/aufs25/inode.c
++++ b/fs/aufs25/inode.c
+@@ -405,7 +405,11 @@ int au_test_ro(struct super_block *sb, a
+
+ int au_test_h_perm(struct inode *h_inode, int mask, int dlgt)
+ {
++	#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ 	if (!current->fsuid)
++	#else
++	if (!current_fsuid())
++	#endif
+ 		return 0;
+ 	/* todo: fake nameidata? */
+ 	return vfsub_permission(h_inode, mask, NULL, dlgt);
+--- a/fs/aufs25/whout.c
++++ b/fs/aufs25/whout.c
+@@ -274,9 +274,15 @@ static int do_unlink_wh(struct au_hinode
+ 	 * forces superio when the dir has a sticky bit.
+ 	 * this may be a violation of unix fs semantics.
+ 	 */
++	#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ 	vfsub_args_init(&vargs, &ign, dlgt,
+ 			(h_dir->i_mode & S_ISVTX)
+ 			&& wh_dentry->d_inode->i_uid != current->fsuid);
++	#else
++	vfsub_args_init(&vargs, &ign, dlgt,
++			(h_dir->i_mode & S_ISVTX)
++			&& wh_dentry->d_inode->i_uid != current_fsuid());
++	#endif
+ 	vfsub_ign_hinode(&vargs, IN_DELETE, hdir);
+ 	err = vfsub_unlink(h_dir, wh_dentry, &vargs);
+ 	AuTraceErr(err);
+@@ -625,7 +631,11 @@ static void reinit_br_wh(void *arg)
+ 	struct vfsub_args vargs;
+
+ 	AuTraceEnter();
++	#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ 	AuDebugOn(current->fsuid);
++	#else
++	AuDebugOn(current_fsuid());
++	#endif
+
+ 	err = 0;
+ 	wbr = a->br->br_wbr;
+--- a/fs/aufs25/xino.c
++++ b/fs/aufs25/xino.c
+@@ -620,8 +620,13 @@ struct file *au_xino_create2(struct supe
+ 		AuErr("%.*s create err %d\n", AuLNPair(name), err);
+ 		goto out_dput;
+ 	}
++	#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ 	file = dentry_open(dget(dentry), mntget(base_file->f_vfsmnt),
+ 			   O_RDWR | O_CREAT | O_EXCL | O_LARGEFILE);
++	#else
++	file = dentry_open(dget(dentry), mntget(base_file->f_vfsmnt),
++			   O_RDWR | O_CREAT | O_EXCL | O_LARGEFILE, current_cred());
++	#endif
+ 	if (IS_ERR(file)) {
+ 		AuErr("%.*s open err %ld\n", AuLNPair(name), PTR_ERR(file));
+ 		goto out_dput;

pkgs/os-specific/linux/aufs/default.nix

@@ -14,6 +14,8 @@ stdenv.mkDerivation {
     tar xvfj ${kernel.src}
     kernelSource=$(echo $(pwd)/linux-*)
     cp -prd $kernelBuild/* $kernelSource
+
+    export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I$PWD/include"
   
     make KDIR=$kernelSource -f local.mk
   '';
@@ -29,6 +31,11 @@ stdenv.mkDerivation {
     cp aufs.ko $out/lib/modules/$kernelVersion/misc
   '';
 
+  patches = [
+    # Debian patch to build AUFS on 2.6.29+
+    ./debian-2.6.29.diff
+  ];
+
   meta = {
     description = "Another Unionfs implementation for Linux";
     homepage = http://aufs.sourceforge.net/;