linux-kernel - [PATCH 67/67] merge aufs

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Date:	Fri, 16 May 2008 23:33:21 +0900
From:	hooanon05@...oo.co.jp
To:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Junjiro Okajima <hooanon05@...oo.co.jp>
Subject: [PATCH 67/67] merge aufs

From: Junjiro Okajima <hooanon05@...oo.co.jp>

	incorporate aufs, export __lookup_hash() and deeper lockdep

Signed-off-by: Junjiro Okajima <hooanon05@...oo.co.jp>
---
 fs/Kconfig              |    2 ++
 fs/Makefile             |    1 +
 fs/namei.c              |    2 +-
 include/linux/lockdep.h |    4 ++++
 include/linux/namei.h   |    1 +
 5 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/fs/Kconfig b/fs/Kconfig
index 379eb47..6df842f 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1072,6 +1072,8 @@ config UNION_FS_DEBUG
 	help
 	  If you say Y here, you can turn on debugging output from Unionfs.
 
+source "fs/aufs/Kconfig"
+
 endmenu
 
 menu "Miscellaneous filesystems"
diff --git a/fs/Makefile b/fs/Makefile
index 7996220..bc5964a 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -121,3 +121,4 @@ obj-$(CONFIG_DEBUG_FS)		+= debugfs/
 obj-$(CONFIG_OCFS2_FS)		+= ocfs2/
 obj-$(CONFIG_GFS2_FS)           += gfs2/
 obj-$(CONFIG_UNION_FS)		+= unionfs/
+obj-$(CONFIG_AUFS)		+= aufs/
diff --git a/fs/namei.c b/fs/namei.c
index 185d56c..1b9e577 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1297,7 +1297,7 @@ int __user_path_lookup_open(const char __user *name, unsigned int lookup_flags,
 	return err;
 }
 
-static struct dentry *__lookup_hash(struct qstr *name,
+struct dentry *__lookup_hash(struct qstr *name,
 		struct dentry *base, struct nameidata *nd)
 {
 	struct dentry *dentry;
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 4c4d236..f5d0642 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -58,7 +58,11 @@ enum lock_usage_bit
 #define LOCKF_USED_IN_IRQ_READ \
 		(LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ)
 
+#ifdef CONFIG_AUFS
+#define MAX_LOCKDEP_SUBCLASSES		16UL
+#else
 #define MAX_LOCKDEP_SUBCLASSES		8UL
+#endif
 
 /*
  * Lock-classes are keyed via unique addresses, by embedding the
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 24d88e9..33c7f23 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -74,6 +74,7 @@ extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry
 extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
 extern void release_open_intent(struct nameidata *);
 
+struct dentry * __lookup_hash(struct qstr *name, struct dentry * base, struct nameidata *nd);
 extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
 extern struct dentry *lookup_one_noperm(const char *, struct dentry *);
 
-- 
1.4.4.4

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