From: Arjan van de Ven Date: Sun, 21 Sep 2008 11:58:27 -0700 Subject: [PATCH] superreadahead patch --- fs/ext3/ioctl.c | 3 +++ fs/ext3/super.c | 1 + include/linux/ext3_fs.h | 1 + include/linux/fs.h | 2 ++ 4 files changed, 7 insertions(+), 0 deletions(-) diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c index 0d0c701..7e62d7d 100644 --- a/fs/ext3/ioctl.c +++ b/fs/ext3/ioctl.c @@ -286,6 +286,9 @@ group_add_out: mnt_drop_write(filp->f_path.mnt); return err; } + case EXT3_IOC_INODE_JIFFIES: { + return inode->created_when; + } default: diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 2845425..6a896a4 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -456,6 +456,7 @@ static struct inode *ext3_alloc_inode(struct super_block *sb) #endif ei->i_block_alloc_info = NULL; ei->vfs_inode.i_version = 1; + ei->vfs_inode.created_when = jiffies; return &ei->vfs_inode; } diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 36c5403..b409fa7 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -225,6 +225,7 @@ struct ext3_new_group_data { #endif #define EXT3_IOC_GETRSVSZ _IOR('f', 5, long) #define EXT3_IOC_SETRSVSZ _IOW('f', 6, long) +#define EXT3_IOC_INODE_JIFFIES _IOR('f', 19, long) /* * ioctl commands in 32 bit emulation diff --git a/include/linux/fs.h b/include/linux/fs.h index c6455da..4ac846d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -655,6 +655,8 @@ struct inode { void *i_security; #endif void *i_private; /* fs or device private pointer */ + + unsigned long created_when; /* jiffies of creation time */ }; /* -- 1.5.5.1