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[PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private

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The following patches reduce the size of the VFS inode structure by 28 bytes
on a UP x86.  (It would be more on an x86_64 system).  This is a 10% reduction
in the inode size on a UP kernel that is configured in a production mode
(i.e., with no spinlock or other debugging functions enabled; if you want to
save memory taken up by in-core inodes, the first thing you should do is
disable the debugging options; they are responsible for a huge amount of bloat
in the VFS inode structure).

This patch:

The filesystem or device-specific pointer in the inode is inside a union,
which is pretty pointless given that all 30+ users of this field have been
using the void pointer.  Get rid of the union and rename it to i_private, with
a comment to explain who is allowed to use the void pointer.  This is just a
cleanup, but it allows us to reuse the union 'u' for something something where
the union will actually be used.

[judith@osdl.org: powerpc build fix]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Judith Lebzelter <judith@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Theodore Ts'o 2006-09-27 01:50:46 -07:00 committed by Linus Torvalds
parent 6a1d9805ec
commit 8e18e2941c
36 changed files with 88 additions and 90 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/platforms/cell/spufs/inode.c
View File

@ -120,7 +120,7 @@ spufs_new_file(struct super_block *sb, struct dentry *dentry,
ret = 0;
inode->i_op = &spufs_file_iops;
inode->i_fop = fops;
inode->u.generic_ip = SPUFS_I(inode)->i_ctx = get_spu_context(ctx);
inode->i_private = SPUFS_I(inode)->i_ctx = get_spu_context(ctx);
d_add(dentry, inode);
out:
return ret;

2
arch/powerpc/platforms/pseries/hvCall_inst.c
View File

@ -85,7 +85,7 @@ static int hcall_inst_seq_open(struct inode *inode, struct file *file)
rc = seq_open(file, &hcall_inst_seq_ops);
seq = file->private_data;
seq->private = file->f_dentry->d_inode->u.generic_ip;
seq->private = file->f_dentry->d_inode->i_private;
return rc;
}

6
arch/s390/hypfs/inode.c
View File

@ -104,13 +104,13 @@ static struct inode *hypfs_make_inode(struct super_block *sb, int mode)
static void hypfs_drop_inode(struct inode *inode)
{
kfree(inode->u.generic_ip);
kfree(inode->i_private);
generic_delete_inode(inode);
}
static int hypfs_open(struct inode *inode, struct file *filp)
{
char *data = filp->f_dentry->d_inode->u.generic_ip;
char *data = filp->f_dentry->d_inode->i_private;
struct hypfs_sb_info *fs_info;
if (filp->f_mode & FMODE_WRITE) {
@ -352,7 +352,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
parent->d_inode->i_nlink++;
} else
BUG();
inode->u.generic_ip = data;
inode->i_private = data;
d_instantiate(dentry, inode);
dget(dentry);
return dentry;

2
arch/s390/kernel/debug.c
View File

@ -603,7 +603,7 @@ debug_open(struct inode *inode, struct file *file)
debug_info_t *debug_info, *debug_info_snapshot;
down(&debug_lock);
debug_info = (struct debug_info*)file->f_dentry->d_inode->u.generic_ip;
debug_info = file->f_dentry->d_inode->i_private;
/* find debug view */
for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
if (!debug_info->views[i])

2
block/blktrace.c
View File

@ -217,7 +217,7 @@ static int blk_trace_remove(request_queue_t *q)
static int blk_dropped_open(struct inode *inode, struct file *filp)
{
filp->private_data = inode->u.generic_ip;
filp->private_data = inode->i_private;
return 0;
}

2
drivers/i2c/chips/tps65010.c
View File

@ -305,7 +305,7 @@ static int dbg_show(struct seq_file *s, void *_)
static int dbg_tps_open(struct inode *inode, struct file *file)
{
return single_open(file, dbg_show, inode->u.generic_ip);
return single_open(file, dbg_show, inode->i_private);
}
static struct file_operations debug_fops = {

12
drivers/infiniband/hw/ipath/ipath_fs.c
View File

@ -64,7 +64,7 @@ static int ipathfs_mknod(struct inode *dir, struct dentry *dentry,
inode->i_blksize = PAGE_CACHE_SIZE;
inode->i_blocks = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inode->u.generic_ip = data;
inode->i_private = data;
if ((mode & S_IFMT) == S_IFDIR) {
inode->i_op = &simple_dir_inode_operations;
inode->i_nlink++;
@ -119,7 +119,7 @@ static ssize_t atomic_counters_read(struct file *file, char __user *buf,
u16 i;
struct ipath_devdata *dd;
dd = file->f_dentry->d_inode->u.generic_ip;
dd = file->f_dentry->d_inode->i_private;
for (i = 0; i < NUM_COUNTERS; i++)
counters[i] = ipath_snap_cntr(dd, i);
@ -139,7 +139,7 @@ static ssize_t atomic_node_info_read(struct file *file, char __user *buf,
struct ipath_devdata *dd;
u64 guid;
dd = file->f_dentry->d_inode->u.generic_ip;
dd = file->f_dentry->d_inode->i_private;
guid = be64_to_cpu(dd->ipath_guid);
@ -178,7 +178,7 @@ static ssize_t atomic_port_info_read(struct file *file, char __user *buf,
u32 tmp, tmp2;
struct ipath_devdata *dd;
dd = file->f_dentry->d_inode->u.generic_ip;
dd = file->f_dentry->d_inode->i_private;
/* so we only initialize non-zero fields. */
memset(portinfo, 0, sizeof portinfo);
@ -325,7 +325,7 @@ static ssize_t flash_read(struct file *file, char __user *buf,
goto bail;
}
dd = file->f_dentry->d_inode->u.generic_ip;
dd = file->f_dentry->d_inode->i_private;
if (ipath_eeprom_read(dd, pos, tmp, count)) {
ipath_dev_err(dd, "failed to read from flash\n");
ret = -ENXIO;
@ -381,7 +381,7 @@ static ssize_t flash_write(struct file *file, const char __user *buf,
goto bail_tmp;
}
dd = file->f_dentry->d_inode->u.generic_ip;
dd = file->f_dentry->d_inode->i_private;
if (ipath_eeprom_write(dd, pos, tmp, count)) {
ret = -ENXIO;
ipath_dev_err(dd, "failed to write to flash\n");

4
drivers/infiniband/ulp/ipoib/ipoib_fs.c
View File

@ -141,7 +141,7 @@ static int ipoib_mcg_open(struct inode *inode, struct file *file)
return ret;
seq = file->private_data;
seq->private = inode->u.generic_ip;
seq->private = inode->i_private;
return 0;
}
@ -247,7 +247,7 @@ static int ipoib_path_open(struct inode *inode, struct file *file)
return ret;
seq = file->private_data;
seq->private = inode->u.generic_ip;
seq->private = inode->i_private;
return 0;
}

16
drivers/misc/ibmasm/ibmasmfs.c
View File

@ -175,7 +175,7 @@ static struct dentry *ibmasmfs_create_file (struct super_block *sb,
}
inode->i_fop = fops;
inode->u.generic_ip = data;
inode->i_private = data;
d_add(dentry, inode);
return dentry;
@ -244,7 +244,7 @@ static int command_file_open(struct inode *inode, struct file *file)
{
struct ibmasmfs_command_data *command_data;
if (!inode->u.generic_ip)
if (!inode->i_private)
return -ENODEV;
command_data = kmalloc(sizeof(struct ibmasmfs_command_data), GFP_KERNEL);
@ -252,7 +252,7 @@ static int command_file_open(struct inode *inode, struct file *file)
return -ENOMEM;
command_data->command = NULL;
command_data->sp = inode->u.generic_ip;
command_data->sp = inode->i_private;
file->private_data = command_data;
return 0;
}
@ -351,10 +351,10 @@ static int event_file_open(struct inode *inode, struct file *file)
struct ibmasmfs_event_data *event_data;
struct service_processor *sp;
if (!inode->u.generic_ip)
if (!inode->i_private)
return -ENODEV;
sp = inode->u.generic_ip;
sp = inode->i_private;
event_data = kmalloc(sizeof(struct ibmasmfs_event_data), GFP_KERNEL);
if (!event_data)
@ -439,14 +439,14 @@ static int r_heartbeat_file_open(struct inode *inode, struct file *file)
{
struct ibmasmfs_heartbeat_data *rhbeat;
if (!inode->u.generic_ip)
if (!inode->i_private)
return -ENODEV;
rhbeat = kmalloc(sizeof(struct ibmasmfs_heartbeat_data), GFP_KERNEL);
if (!rhbeat)
return -ENOMEM;
rhbeat->sp = (struct service_processor *)inode->u.generic_ip;
rhbeat->sp = inode->i_private;
rhbeat->active = 0;
ibmasm_init_reverse_heartbeat(rhbeat->sp, &rhbeat->heartbeat);
file->private_data = rhbeat;
@ -508,7 +508,7 @@ static ssize_t r_heartbeat_file_write(struct file *file, const char __user *buf,
static int remote_settings_file_open(struct inode *inode, struct file *file)
{
file->private_data = inode->u.generic_ip;
file->private_data = inode->i_private;
return 0;
}

2
drivers/net/irda/vlsi_ir.h
View File

@ -58,7 +58,7 @@ typedef void irqreturn_t;
/* PDE() introduced in 2.5.4 */
#ifdef CONFIG_PROC_FS
#define PDE(inode) ((inode)->u.generic_ip)
#define PDE(inode) ((inode)->i_private)
#endif
/* irda crc16 calculation exported in 2.5.42 */

2
drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
View File

@ -54,7 +54,7 @@ static ssize_t write_file_dummy(struct file *file, const char __user *buf,
static int open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->u.generic_ip;
file->private_data = inode->i_private;
return 0;
}

10
drivers/oprofile/oprofilefs.c
View File

@ -110,8 +110,8 @@ static ssize_t ulong_write_file(struct file * file, char const __user * buf, siz
static int default_open(struct inode * inode, struct file * filp)
{
if (inode->u.generic_ip)
filp->private_data = inode->u.generic_ip;
if (inode->i_private)
filp->private_data = inode->i_private;
return 0;
}
@ -158,7 +158,7 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root,
if (!d)
return -EFAULT;
d->d_inode->u.generic_ip = val;
d->d_inode->i_private = val;
return 0;
}
@ -171,7 +171,7 @@ int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root,
if (!d)
return -EFAULT;
d->d_inode->u.generic_ip = val;
d->d_inode->i_private = val;
return 0;
}
@ -197,7 +197,7 @@ int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root,
if (!d)
return -EFAULT;
d->d_inode->u.generic_ip = val;
d->d_inode->i_private = val;
return 0;
}

2
drivers/pci/hotplug/cpqphp_sysfs.c
View File

@ -140,7 +140,7 @@ struct ctrl_dbg {
static int open(struct inode *inode, struct file *file)
{
struct controller *ctrl = inode->u.generic_ip;
struct controller *ctrl = inode->i_private;
struct ctrl_dbg *dbg;
int retval = -ENOMEM;

2
drivers/usb/core/devio.c
View File

@ -555,7 +555,7 @@ static int usbdev_open(struct inode *inode, struct file *file)
if (imajor(inode) == USB_DEVICE_MAJOR)
dev = usbdev_lookup_minor(iminor(inode));
if (!dev)
dev = inode->u.generic_ip;
dev = inode->i_private;
if (!dev) {
kfree(ps);
goto out;

6
drivers/usb/core/inode.c
View File

@ -402,8 +402,8 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig)
static int default_open (struct inode *inode, struct file *file)
{
if (inode->u.generic_ip)
file->private_data = inode->u.generic_ip;
if (inode->i_private)
file->private_data = inode->i_private;
return 0;
}
@ -509,7 +509,7 @@ static struct dentry *fs_create_file (const char *name, mode_t mode,
} else {
if (dentry->d_inode) {
if (data)
dentry->d_inode->u.generic_ip = data;
dentry->d_inode->i_private = data;
if (fops)
dentry->d_inode->i_fop = fops;
dentry->d_inode->i_uid = uid;

6
drivers/usb/gadget/inode.c
View File

@ -844,7 +844,7 @@ fail1:
static int
ep_open (struct inode *inode, struct file *fd)
{
struct ep_data *data = inode->u.generic_ip;
struct ep_data *data = inode->i_private;
int value = -EBUSY;
if (down_interruptible (&data->lock) != 0)
@ -1909,7 +1909,7 @@ fail:
static int
dev_open (struct inode *inode, struct file *fd)
{
struct dev_data *dev = inode->u.generic_ip;
struct dev_data *dev = inode->i_private;
int value = -EBUSY;
if (dev->state == STATE_DEV_DISABLED) {
@ -1970,7 +1970,7 @@ gadgetfs_make_inode (struct super_block *sb,
inode->i_blocks = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime
= CURRENT_TIME;
inode->u.generic_ip = data;
inode->i_private = data;
inode->i_fop = fops;
}
return inode;

2
drivers/usb/host/isp116x-hcd.c
View File

@ -1204,7 +1204,7 @@ static int isp116x_show_dbg(struct seq_file *s, void *unused)
static int isp116x_open_seq(struct inode *inode, struct file *file)
{
return single_open(file, isp116x_show_dbg, inode->u.generic_ip);
return single_open(file, isp116x_show_dbg, inode->i_private);
}
static struct file_operations isp116x_debug_fops = {

2
drivers/usb/host/uhci-debug.c
View File

@ -428,7 +428,7 @@ struct uhci_debug {
static int uhci_debug_open(struct inode *inode, struct file *file)
{
struct uhci_hcd *uhci = inode->u.generic_ip;
struct uhci_hcd *uhci = inode->i_private;
struct uhci_debug *up;
int ret = -ENOMEM;
unsigned long flags;

2
drivers/usb/mon/mon_stat.c
View File

@ -28,7 +28,7 @@ static int mon_stat_open(struct inode *inode, struct file *file)
if ((sp = kmalloc(sizeof(struct snap), GFP_KERNEL)) == NULL)
return -ENOMEM;
mbus = inode->u.generic_ip;
mbus = inode->i_private;
sp->slen = snprintf(sp->str, STAT_BUF_SIZE,
"nreaders %d events %u text_lost %u\n",

4
drivers/usb/mon/mon_text.c
View File

@ -238,7 +238,7 @@ static int mon_text_open(struct inode *inode, struct file *file)
int rc;
mutex_lock(&mon_lock);
mbus = inode->u.generic_ip;
mbus = inode->i_private;
ubus = mbus->u_bus;
rp = kzalloc(sizeof(struct mon_reader_text), GFP_KERNEL);
@ -401,7 +401,7 @@ static int mon_text_release(struct inode *inode, struct file *file)
struct mon_event_text *ep;
mutex_lock(&mon_lock);
mbus = inode->u.generic_ip;
mbus = inode->i_private;
if (mbus->nreaders <= 0) {
printk(KERN_ERR TAG ": consistency error on close\n");

2
fs/autofs/inode.c
View File

@ -241,7 +241,7 @@ static void autofs_read_inode(struct inode *inode)
inode->i_op = &autofs_symlink_inode_operations;
sl = &sbi->symlink[n];
inode->u.generic_ip = sl;
inode->i_private = sl;
inode->i_mode = S_IFLNK | S_IRWXUGO;
inode->i_mtime.tv_sec = inode->i_ctime.tv_sec = sl->mtime;
inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0;

2
fs/autofs/symlink.c
View File

@ -15,7 +15,7 @@
/* Nothing to release.. */
static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data;
char *s=((struct autofs_symlink *)dentry->d_inode->i_private)->data;
nd_set_link(nd, s);
return NULL;
}

8
fs/binfmt_misc.c
View File

@ -517,7 +517,7 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode)
static void bm_clear_inode(struct inode *inode)
{
kfree(inode->u.generic_ip);
kfree(inode->i_private);
}
static void kill_node(Node *e)
@ -545,7 +545,7 @@ static void kill_node(Node *e)
static ssize_t
bm_entry_read(struct file * file, char __user * buf, size_t nbytes, loff_t *ppos)
{
Node *e = file->f_dentry->d_inode->u.generic_ip;
Node *e = file->f_dentry->d_inode->i_private;
loff_t pos = *ppos;
ssize_t res;
char *page;
@ -579,7 +579,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
struct dentry *root;
Node *e = file->f_dentry->d_inode->u.generic_ip;
Node *e = file->f_dentry->d_inode->i_private;
int res = parse_command(buffer, count);
switch (res) {
@ -646,7 +646,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
}
e->dentry = dget(dentry);
inode->u.generic_ip = e;
inode->i_private = e;
inode->i_fop = &bm_entry_operations;
d_instantiate(dentry, inode);

4
fs/debugfs/file.c
View File

@ -32,8 +32,8 @@ static ssize_t default_write_file(struct file *file, const char __user *buf,
static int default_open(struct inode *inode, struct file *file)
{
if (inode->u.generic_ip)
file->private_data = inode->u.generic_ip;
if (inode->i_private)
file->private_data = inode->i_private;
return 0;
}

4
fs/debugfs/inode.c
View File

@ -168,7 +168,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
* directory dentry if set. If this paramater is NULL, then the
* file will be created in the root of the debugfs filesystem.
* @data: a pointer to something that the caller will want to get to later
* on. The inode.u.generic_ip pointer will point to this value on
* on. The inode.i_private pointer will point to this value on
* the open() call.
* @fops: a pointer to a struct file_operations that should be used for
* this file.
@ -209,7 +209,7 @@ struct dentry *debugfs_create_file(const char *name, mode_t mode,
if (dentry->d_inode) {
if (data)
dentry->d_inode->u.generic_ip = data;
dentry->d_inode->i_private = data;
if (fops)
dentry->d_inode->i_fop = fops;
}

4
fs/devpts/inode.c
View File

@ -177,7 +177,7 @@ int devpts_pty_new(struct tty_struct *tty)
inode->i_gid = config.setgid ? config.gid : current->fsgid;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
init_special_inode(inode, S_IFCHR|config.mode, device);
inode->u.generic_ip = tty;
inode->i_private = tty;
dentry = get_node(number);
if (!IS_ERR(dentry) && !dentry->d_inode)
@ -196,7 +196,7 @@ struct tty_struct *devpts_get_tty(int number)
tty = NULL;
if (!IS_ERR(dentry)) {
if (dentry->d_inode)
tty = dentry->d_inode->u.generic_ip;
tty = dentry->d_inode->i_private;
dput(dentry);
}

2
fs/freevxfs/vxfs.h
View File

@ -252,7 +252,7 @@ enum {
* Get filesystem private data from VFS inode.
*/
#define VXFS_INO(ip) \
((struct vxfs_inode_info *)(ip)->u.generic_ip)
((struct vxfs_inode_info *)(ip)->i_private)
/*
* Get filesystem private data from VFS superblock.

4
fs/freevxfs/vxfs_inode.c
View File

@ -243,7 +243,7 @@ vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip)
ip->i_blocks = vip->vii_blocks;
ip->i_generation = vip->vii_gen;
ip->u.generic_ip = (void *)vip;
ip->i_private = vip;
}
@ -338,5 +338,5 @@ vxfs_read_inode(struct inode *ip)
void
vxfs_clear_inode(struct inode *ip)
{
kmem_cache_free(vxfs_inode_cachep, ip->u.generic_ip);
kmem_cache_free(vxfs_inode_cachep, ip->i_private);
}

6
fs/fuse/control.c
View File

@ -23,7 +23,7 @@ static struct fuse_conn *fuse_ctl_file_conn_get(struct file *file)
{
struct fuse_conn *fc;
mutex_lock(&fuse_mutex);
fc = file->f_dentry->d_inode->u.generic_ip;
fc = file->f_dentry->d_inode->i_private;
if (fc)
fc = fuse_conn_get(fc);
mutex_unlock(&fuse_mutex);
@ -98,7 +98,7 @@ static struct dentry *fuse_ctl_add_dentry(struct dentry *parent,
inode->i_op = iop;
inode->i_fop = fop;
inode->i_nlink = nlink;
inode->u.generic_ip = fc;
inode->i_private = fc;
d_add(dentry, inode);
return dentry;
}
@ -150,7 +150,7 @@ void fuse_ctl_remove_conn(struct fuse_conn *fc)
for (i = fc->ctl_ndents - 1; i >= 0; i--) {
struct dentry *dentry = fc->ctl_dentry[i];
dentry->d_inode->u.generic_ip = NULL;
dentry->d_inode->i_private = NULL;
d_drop(dentry);
dput(dentry);
}

2
fs/inode.c
View File

@ -163,7 +163,7 @@ static struct inode *alloc_inode(struct super_block *sb)
bdi = sb->s_bdev->bd_inode->i_mapping->backing_dev_info;
mapping->backing_dev_info = bdi;
}
memset(&inode->u, 0, sizeof(inode->u));
inode->i_private = 0;
inode->i_mapping = mapping;
}
return inode;

34
fs/jffs/inode-v23.c
View File

@ -369,7 +369,7 @@ jffs_new_inode(const struct inode * dir, struct jffs_raw_inode *raw_inode,
f = jffs_find_file(c, raw_inode->ino);
inode->u.generic_ip = (void *)f;
inode->i_private = (void *)f;
insert_inode_hash(inode);
return inode;
@ -442,7 +442,7 @@ jffs_rename(struct inode *old_dir, struct dentry *old_dentry,
});
result = -ENOTDIR;
if (!(old_dir_f = (struct jffs_file *)old_dir->u.generic_ip)) {
if (!(old_dir_f = old_dir->i_private)) {
D(printk("jffs_rename(): Old dir invalid.\n"));
goto jffs_rename_end;
}
@ -456,7 +456,7 @@ jffs_rename(struct inode *old_dir, struct dentry *old_dentry,
/* Find the new directory. */
result = -ENOTDIR;
if (!(new_dir_f = (struct jffs_file *)new_dir->u.generic_ip)) {
if (!(new_dir_f = new_dir->i_private)) {
D(printk("jffs_rename(): New dir invalid.\n"));
goto jffs_rename_end;
}
@ -593,7 +593,7 @@ jffs_readdir(struct file *filp, void *dirent, filldir_t filldir)
}
else {
ddino = ((struct jffs_file *)
inode->u.generic_ip)->pino;
inode->i_private)->pino;
}
D3(printk("jffs_readdir(): \"..\" %u\n", ddino));
if (filldir(dirent, "..", 2, filp->f_pos, ddino, DT_DIR) < 0) {
@ -604,7 +604,7 @@ jffs_readdir(struct file *filp, void *dirent, filldir_t filldir)
}
filp->f_pos++;
}
f = ((struct jffs_file *)inode->u.generic_ip)->children;
f = ((struct jffs_file *)inode->i_private)->children;
j = 2;
while(f && (f->deleted || j++ < filp->f_pos )) {
@ -668,7 +668,7 @@ jffs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
}
r = -EACCES;
if (!(d = (struct jffs_file *)dir->u.generic_ip)) {
if (!(d = (struct jffs_file *)dir->i_private)) {
D(printk("jffs_lookup(): No such inode! (%lu)\n",
dir->i_ino));
goto jffs_lookup_end;
@ -739,7 +739,7 @@ jffs_do_readpage_nolock(struct file *file, struct page *page)
unsigned long read_len;
int result;
struct inode *inode = (struct inode*)page->mapping->host;
struct jffs_file *f = (struct jffs_file *)inode->u.generic_ip;
struct jffs_file *f = (struct jffs_file *)inode->i_private;
struct jffs_control *c = (struct jffs_control *)inode->i_sb->s_fs_info;
int r;
loff_t offset;
@ -828,7 +828,7 @@ jffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
});
lock_kernel();
dir_f = (struct jffs_file *)dir->u.generic_ip;
dir_f = dir->i_private;
ASSERT(if (!dir_f) {
printk(KERN_ERR "jffs_mkdir(): No reference to a "
@ -972,7 +972,7 @@ jffs_remove(struct inode *dir, struct dentry *dentry, int type)
kfree(_name);
});
dir_f = (struct jffs_file *) dir->u.generic_ip;
dir_f = dir->i_private;
c = dir_f->c;
result = -ENOENT;
@ -1082,7 +1082,7 @@ jffs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
if (!old_valid_dev(rdev))
return -EINVAL;
lock_kernel();
dir_f = (struct jffs_file *)dir->u.generic_ip;
dir_f = dir->i_private;
c = dir_f->c;
D3(printk (KERN_NOTICE "mknod(): down biglock\n"));
@ -1186,7 +1186,7 @@ jffs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
kfree(_symname);
});
dir_f = (struct jffs_file *)dir->u.generic_ip;
dir_f = dir->i_private;
ASSERT(if (!dir_f) {
printk(KERN_ERR "jffs_symlink(): No reference to a "
"jffs_file struct in inode.\n");
@ -1289,7 +1289,7 @@ jffs_create(struct inode *dir, struct dentry *dentry, int mode,
kfree(s);
});
dir_f = (struct jffs_file *)dir->u.generic_ip;
dir_f = dir->i_private;
ASSERT(if (!dir_f) {
printk(KERN_ERR "jffs_create(): No reference to a "
"jffs_file struct in inode.\n");
@ -1403,9 +1403,9 @@ jffs_file_write(struct file *filp, const char *buf, size_t count,
goto out_isem;
}
if (!(f = (struct jffs_file *)inode->u.generic_ip)) {
D(printk("jffs_file_write(): inode->u.generic_ip = 0x%p\n",
inode->u.generic_ip));
if (!(f = inode->i_private)) {
D(printk("jffs_file_write(): inode->i_private = 0x%p\n",
inode->i_private));
goto out_isem;
}
@ -1693,7 +1693,7 @@ jffs_read_inode(struct inode *inode)
mutex_unlock(&c->fmc->biglock);
return;
}
inode->u.generic_ip = (void *)f;
inode->i_private = f;
inode->i_mode = f->mode;
inode->i_nlink = f->nlink;
inode->i_uid = f->uid;
@ -1748,7 +1748,7 @@ jffs_delete_inode(struct inode *inode)
lock_kernel();
inode->i_size = 0;
inode->i_blocks = 0;
inode->u.generic_ip = NULL;
inode->i_private = NULL;
clear_inode(inode);
if (inode->i_nlink == 0) {
c = (struct jffs_control *) inode->i_sb->s_fs_info;

2
fs/libfs.c
View File

@ -547,7 +547,7 @@ int simple_attr_open(struct inode *inode, struct file *file,
attr->get = get;
attr->set = set;
attr->data = inode->u.generic_ip;
attr->data = inode->i_private;
attr->fmt = fmt;
mutex_init(&attr->mutex);

2
fs/ocfs2/dlmglue.c
View File

@ -2052,7 +2052,7 @@ static int ocfs2_dlm_debug_open(struct inode *inode, struct file *file)
mlog_errno(ret);
goto out;
}
osb = (struct ocfs2_super *) inode->u.generic_ip;
osb = inode->i_private;
ocfs2_get_dlm_debug(osb->osb_dlm_debug);
priv->p_dlm_debug = osb->osb_dlm_debug;
INIT_LIST_HEAD(&priv->p_iter_res.l_debug_list);

4
include/linux/fs.h
View File

@ -554,9 +554,7 @@ struct inode {
atomic_t i_writecount;
void *i_security;
union {
void *generic_ip;
} u;
void *i_private; /* fs or device private pointer */
#ifdef __NEED_I_SIZE_ORDERED
seqcount_t i_size_seqcount;
#endif

2
kernel/relay.c
View File

@ -669,7 +669,7 @@ EXPORT_SYMBOL_GPL(relay_flush);
*/
static int relay_file_open(struct inode *inode, struct file *filp)
{
struct rchan_buf *buf = inode->u.generic_ip;
struct rchan_buf *buf = inode->i_private;
kref_get(&buf->kref);
filp->private_data = buf;

8
security/inode.c
View File

@ -44,8 +44,8 @@ static ssize_t default_write_file(struct file *file, const char __user *buf,
static int default_open(struct inode *inode, struct file *file)
{
if (inode->u.generic_ip)
file->private_data = inode->u.generic_ip;
if (inode->i_private)
file->private_data = inode->i_private;
return 0;
}
@ -194,7 +194,7 @@ static int create_by_name(const char *name, mode_t mode,
* directory dentry if set. If this paramater is NULL, then the
* file will be created in the root of the securityfs filesystem.
* @data: a pointer to something that the caller will want to get to later
* on. The inode.u.generic_ip pointer will point to this value on
* on. The inode.i_private pointer will point to this value on
* the open() call.
* @fops: a pointer to a struct file_operations that should be used for
* this file.
@ -240,7 +240,7 @@ struct dentry *securityfs_create_file(const char *name, mode_t mode,
if (fops)
dentry->d_inode->i_fop = fops;
if (data)
dentry->d_inode->u.generic_ip = data;
dentry->d_inode->i_private = data;
}
exit:
return dentry;