67 lines
1.7 KiB
Diff
67 lines
1.7 KiB
Diff
From be9df3282d24a7326bba2eea986c79d822f0e998 Mon Sep 17 00:00:00 2001
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From: Arjan van de Ven <arjan@linux.intel.com>
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Date: Sun, 21 Sep 2008 11:58:27 -0700
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Subject: [PATCH] superreadahead patch
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---
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fs/ext3/ioctl.c | 3 +++
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fs/ext3/super.c | 1 +
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include/linux/ext3_fs.h | 1 +
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include/linux/fs.h | 2 ++
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4 files changed, 7 insertions(+), 0 deletions(-)
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diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
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index b7394d0..c2e7f23 100644
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--- a/fs/ext3/ioctl.c
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+++ b/fs/ext3/ioctl.c
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@@ -290,6 +290,9 @@ group_add_out:
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mnt_drop_write(filp->f_path.mnt);
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return err;
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}
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+ case EXT3_IOC_INODE_JIFFIES: {
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+ return inode->created_when;
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+ }
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default:
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diff --git a/fs/ext3/super.c b/fs/ext3/super.c
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index f6c94f2..268dd1d 100644
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--- a/fs/ext3/super.c
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+++ b/fs/ext3/super.c
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@@ -461,6 +461,7 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
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#endif
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ei->i_block_alloc_info = NULL;
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ei->vfs_inode.i_version = 1;
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+ ei->vfs_inode.created_when = jiffies;
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return &ei->vfs_inode;
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}
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diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
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index d14f029..fff5510 100644
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--- a/include/linux/ext3_fs.h
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+++ b/include/linux/ext3_fs.h
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@@ -225,6 +225,7 @@ struct ext3_new_group_data {
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#endif
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#define EXT3_IOC_GETRSVSZ _IOR('f', 5, long)
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#define EXT3_IOC_SETRSVSZ _IOW('f', 6, long)
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+#define EXT3_IOC_INODE_JIFFIES _IOR('f', 19, long)
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/*
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* ioctl commands in 32 bit emulation
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diff --git a/include/linux/fs.h b/include/linux/fs.h
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index 4a853ef..c346136 100644
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--- a/include/linux/fs.h
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+++ b/include/linux/fs.h
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@@ -685,6 +685,8 @@ struct inode {
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void *i_security;
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#endif
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void *i_private; /* fs or device private pointer */
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+
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+ unsigned long created_when; /* jiffies of creation time */
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};
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/*
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--
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1.5.5.1
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