[PATCH] r/o bind mounts: unlink: monitor i_nlink

[deliverable/linux.git] / drivers / usb / core / inode.c

diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index f48c3dbc367ae4e97aa7919c15439a5c0207a9ed..88002e45a6b4a3b8a6b175ef2808208ad6a2c7ea 100644 (file)
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -44,7 +44,7 @@
 #include "hcd.h"
 
 static struct super_operations usbfs_ops;
-static struct file_operations default_file_operations;
+static const struct file_operations default_file_operations;
 static struct vfsmount *usbfs_mount;
 static int usbfs_mount_count;  /* = 0 */
 static int ignore_mount = 0;
@@ -249,7 +249,6 @@ static struct inode *usbfs_get_inode (struct super_block *sb, int mode, dev_t de
                inode->i_mode = mode;
                inode->i_uid = current->fsuid;
                inode->i_gid = current->fsgid;
-               inode->i_blksize = PAGE_CACHE_SIZE;
                inode->i_blocks = 0;
                inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
                switch (mode & S_IFMT) {
@@ -333,7 +332,7 @@ static int usbfs_unlink (struct inode *dir, struct dentry *dentry)
 {
        struct inode *inode = dentry->d_inode;
        mutex_lock(&inode->i_mutex);
-       dentry->d_inode->i_nlink--;
+       drop_nlink(dentry->d_inode);
        dput(dentry);
        mutex_unlock(&inode->i_mutex);
        d_delete(dentry);
@@ -348,10 +347,11 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry)
        mutex_lock(&inode->i_mutex);
        dentry_unhash(dentry);
        if (usbfs_empty(dentry)) {
-               dentry->d_inode->i_nlink -= 2;
+               drop_nlink(dentry->d_inode);
+               drop_nlink(dentry->d_inode);
                dput(dentry);
                inode->i_flags |= S_DEAD;
-               dir->i_nlink--;
+               drop_nlink(dir);
                error = 0;
        }
        mutex_unlock(&inode->i_mutex);
@@ -402,13 +402,13 @@ 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;
 }
 
-static struct file_operations default_file_operations = {
+static const struct file_operations default_file_operations = {
        .read =         default_read_file,
        .write =        default_write_file,
        .open =         default_open,
@@ -495,7 +495,7 @@ static int fs_create_by_name (const char *name, mode_t mode,
 
 static struct dentry *fs_create_file (const char *name, mode_t mode,
                                      struct dentry *parent, void *data,
-                                     struct file_operations *fops,
+                                     const struct file_operations *fops,
                                      uid_t uid, gid_t gid)
 {
        struct dentry *dentry;
@@ -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;
@@ -695,7 +695,7 @@ static void usbfs_remove_device(struct usb_device *dev)
                wake_up_all(&ds->wait);
                list_del_init(&ds->list);
                if (ds->discsignr) {
-                       sinfo.si_signo = SIGPIPE;
+                       sinfo.si_signo = ds->discsignr;
                        sinfo.si_errno = EPIPE;
                        sinfo.si_code = SI_ASYNCIO;
                        sinfo.si_addr = ds->disccontext;