97 lines
2.8 KiB
Diff
97 lines
2.8 KiB
Diff
From 4d690855d6bdc15b753ac3c21bf507ad94d46aac 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 8897481..08f4854 100644
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--- a/fs/ext3/ioctl.c
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+++ b/fs/ext3/ioctl.c
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@@ -276,6 +276,9 @@ 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 524b349..e6e8514 100644
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--- a/fs/ext3/super.c
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+++ b/fs/ext3/super.c
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@@ -466,6 +466,7 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
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return NULL;
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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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atomic_set(&ei->i_datasync_tid, 0);
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atomic_set(&ei->i_sync_tid, 0);
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return &ei->vfs_inode;
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diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
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index 634a5e5..84d5394 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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@@ -250,6 +250,7 @@ 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 0872372..078e3fd 100644
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--- a/include/linux/fs.h
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+++ b/include/linux/fs.h
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@@ -781,6 +781,8 @@ struct inode {
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struct posix_acl *i_default_acl;
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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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1.6.0.6
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--- vanilla-2.6.32-rc7/fs/btrfs/inode.c~ 2009-11-13 11:15:48.000000000 -0800
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+++ vanilla-2.6.32-rc7/fs/btrfs/inode.c 2009-11-13 11:15:48.000000000 -0800
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@@ -5181,6 +5181,7 @@
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ei->outstanding_extents = 0;
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ei->reserved_extents = 0;
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ei->root = NULL;
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+ ei->vfs_inode.created_when = jiffies;
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spin_lock_init(&ei->accounting_lock);
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btrfs_ordered_inode_tree_init(&ei->ordered_tree);
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INIT_LIST_HEAD(&ei->i_orphan);
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--- vanilla-2.6.32-rc7/fs/btrfs/ioctl.c~ 2009-11-13 11:16:58.000000000 -0800
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+++ vanilla-2.6.32-rc7/fs/btrfs/ioctl.c 2009-11-13 11:16:58.000000000 -0800
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@@ -1298,6 +1298,8 @@
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return 0;
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}
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+#define EXT3_IOC_INODE_JIFFIES _IOR('f', 19, long)
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+
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long btrfs_ioctl(struct file *file, unsigned int
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cmd, unsigned long arg)
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{
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@@ -1337,6 +1338,8 @@
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case BTRFS_IOC_SYNC:
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btrfs_sync_fs(file->f_dentry->d_sb, 1);
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return 0;
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+ case EXT3_IOC_INODE_JIFFIES:
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+ return fdentry(file)->d_inode->created_when;
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}
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return -ENOTTY;
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