linux-kernel - [PATCH 3/3] vfs: remove ->d

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Date:   Mon,  7 Nov 2016 11:52:00 +0100
From:   Miklos Szeredi <mszeredi@...hat.com>
To:     Al Viro <viro@...IV.linux.org.uk>
Cc:     Trond Myklebust <trond.myklebust@...marydata.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] vfs: remove ->d_time

Remove dentry->d_time field, which is now unused.  This makes space for
longer inline names.

Signed-off-by: Miklos Szeredi <mszeredi@...hat.com>
---
 include/linux/dcache.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 5beed7b30561..0061089099a8 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -69,12 +69,12 @@ extern struct dentry_stat_t dentry_stat;
  * large memory footprint increase).
  */
 #ifdef CONFIG_64BIT
-# define DNAME_INLINE_LEN 32 /* 192 bytes */
+# define DNAME_INLINE_LEN 40 /* 192 bytes */
 #else
 # ifdef CONFIG_SMP
-#  define DNAME_INLINE_LEN 36 /* 128 bytes */
-# else
 #  define DNAME_INLINE_LEN 40 /* 128 bytes */
+# else
+#  define DNAME_INLINE_LEN 44 /* 128 bytes */
 # endif
 #endif
 
@@ -95,7 +95,6 @@ struct dentry {
 	struct lockref d_lockref;	/* per-dentry lock and refcount */
 	const struct dentry_operations *d_op;
 	struct super_block *d_sb;	/* The root of the dentry tree */
-	unsigned long d_time;		/* used by d_revalidate */
 	void *d_fsdata;			/* fs-specific data */
 
 	union {
-- 
2.5.5