Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
  reiserfs: Properly display mount options in /proc/mounts
  vfs: prevent remount read-only if pending removes
  vfs: count unlinked inodes
  vfs: protect remounting superblock read-only
  vfs: keep list of mounts for each superblock
  vfs: switch ->show_options() to struct dentry *
  vfs: switch ->show_path() to struct dentry *
  vfs: switch ->show_devname() to struct dentry *
  vfs: switch ->show_stats to struct dentry *
  switch security_path_chmod() to struct path *
  vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
  vfs: trim includes a bit
  switch mnt_namespace ->root to struct mount
  vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
  vfs: opencode mntget() mnt_set_mountpoint()
  vfs: spread struct mount - remaining argument of next_mnt()
  vfs: move fsnotify junk to struct mount
  vfs: move mnt_devname
  vfs: move mnt_list to struct mount
  vfs: switch pnode.h macros to struct mount *
  ...

9 files changed, 37 insertions, 58 deletions

diff --git a/kernel/acct.c b/kernel/acct.c
index 203dfead2e0..02e6167a53b 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -84,11 +84,10 @@ static void do_acct_process(struct bsd_acct_struct *acct,
  * the cache line to have the data after getting the lock.
  */
 struct bsd_acct_struct {
-	volatile int		active;
-	volatile int		needcheck;
+	int			active;
+	unsigned long		needcheck;
 	struct file		*file;
 	struct pid_namespace	*ns;
-	struct timer_list	timer;
 	struct list_head	list;
 };
 
@@ -96,15 +95,6 @@ static DEFINE_SPINLOCK(acct_lock);
 static LIST_HEAD(acct_list);
 
 /*
- * Called whenever the timer says to check the free space.
- */
-static void acct_timeout(unsigned long x)
-{
-	struct bsd_acct_struct *acct = (struct bsd_acct_struct *)x;
-	acct->needcheck = 1;
-}
-
-/*
  * Check the amount of free space and suspend/resume accordingly.
  */
 static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
@@ -112,12 +102,12 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
 	struct kstatfs sbuf;
 	int res;
 	int act;
-	sector_t resume;
-	sector_t suspend;
+	u64 resume;
+	u64 suspend;
 
 	spin_lock(&acct_lock);
 	res = acct->active;
-	if (!file || !acct->needcheck)
+	if (!file || time_is_before_jiffies(acct->needcheck))
 		goto out;
 	spin_unlock(&acct_lock);
 
@@ -127,8 +117,8 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
 	suspend = sbuf.f_blocks * SUSPEND;
 	resume = sbuf.f_blocks * RESUME;
 
-	sector_div(suspend, 100);
-	sector_div(resume, 100);
+	do_div(suspend, 100);
+	do_div(resume, 100);
 
 	if (sbuf.f_bavail <= suspend)
 		act = -1;
@@ -160,10 +150,7 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
 		}
 	}
 
-	del_timer(&acct->timer);
-	acct->needcheck = 0;
-	acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ;
-	add_timer(&acct->timer);
+	acct->needcheck = jiffies + ACCT_TIMEOUT*HZ;
 	res = acct->active;
 out:
 	spin_unlock(&acct_lock);
@@ -185,9 +172,7 @@ static void acct_file_reopen(struct bsd_acct_struct *acct, struct file *file,
 	if (acct->file) {
 		old_acct = acct->file;
 		old_ns = acct->ns;
-		del_timer(&acct->timer);
 		acct->active = 0;
-		acct->needcheck = 0;
 		acct->file = NULL;
 		acct->ns = NULL;
 		list_del(&acct->list);
@@ -195,13 +180,9 @@ static void acct_file_reopen(struct bsd_acct_struct *acct, struct file *file,
 	if (file) {
 		acct->file = file;
 		acct->ns = ns;
-		acct->needcheck = 0;
+		acct->needcheck = jiffies + ACCT_TIMEOUT*HZ;
 		acct->active = 1;
 		list_add(&acct->list, &acct_list);
-		/* It's been deleted if it was used before so this is safe */
-		setup_timer(&acct->timer, acct_timeout, (unsigned long)acct);
-		acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ;
-		add_timer(&acct->timer);
 	}
 	if (old_acct) {
 		mnt_unpin(old_acct->f_path.mnt);
@@ -334,7 +315,7 @@ void acct_auto_close(struct super_block *sb)
 	spin_lock(&acct_lock);
 restart:
 	list_for_each_entry(acct, &acct_list, list)
-		if (acct->file && acct->file->f_path.mnt->mnt_sb == sb) {
+		if (acct->file && acct->file->f_path.dentry->d_sb == sb) {
 			acct_file_reopen(acct, NULL, NULL);
 			goto restart;
 		}
@@ -348,7 +329,6 @@ void acct_exit_ns(struct pid_namespace *ns)
 	if (acct == NULL)
 		return;
 
-	del_timer_sync(&acct->timer);
 	spin_lock(&acct_lock);
 	if (acct->file != NULL)
 		acct_file_reopen(acct, NULL, NULL);
@@ -498,7 +478,7 @@ static void do_acct_process(struct bsd_acct_struct *acct,
 	 * Fill the accounting struct with the needed info as recorded
 	 * by the different kernel functions.
 	 */
-	memset((caddr_t)&ac, 0, sizeof(acct_t));
+	memset(&ac, 0, sizeof(acct_t));
 
 	ac.ac_version = ACCT_VERSION | ACCT_BYTEORDER;
 	strlcpy(ac.ac_comm, current->comm, sizeof(ac.ac_comm));
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 47b7fc1ea89..e7fe2b0d29b 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -210,12 +210,12 @@ struct audit_context {
 		struct {
 			uid_t			uid;
 			gid_t			gid;
-			mode_t			mode;
+			umode_t			mode;
 			u32			osid;
 			int			has_perm;
 			uid_t			perm_uid;
 			gid_t			perm_gid;
-			mode_t			perm_mode;
+			umode_t			perm_mode;
 			unsigned long		qbytes;
 		} ipc;
 		struct {
@@ -234,7 +234,7 @@ struct audit_context {
 		} mq_sendrecv;
 		struct {
 			int			oflag;
-			mode_t			mode;
+			umode_t			mode;
 			struct mq_attr		attr;
 		} mq_open;
 		struct {
@@ -308,7 +308,7 @@ static int audit_match_perm(struct audit_context *ctx, int mask)
 static int audit_match_filetype(struct audit_context *ctx, int which)
 {
 	unsigned index = which & ~S_IFMT;
-	mode_t mode = which & S_IFMT;
+	umode_t mode = which & S_IFMT;
 
 	if (unlikely(!ctx))
 		return 0;
@@ -1249,7 +1249,7 @@ static void show_special(struct audit_context *context, int *call_panic)
 	case AUDIT_IPC: {
 		u32 osid = context->ipc.osid;
 
-		audit_log_format(ab, "ouid=%u ogid=%u mode=%#o",
+		audit_log_format(ab, "ouid=%u ogid=%u mode=%#ho",
 			 context->ipc.uid, context->ipc.gid, context->ipc.mode);
 		if (osid) {
 			char *ctx = NULL;
@@ -1267,7 +1267,7 @@ static void show_special(struct audit_context *context, int *call_panic)
 			ab = audit_log_start(context, GFP_KERNEL,
 					     AUDIT_IPC_SET_PERM);
 			audit_log_format(ab,
-				"qbytes=%lx ouid=%u ogid=%u mode=%#o",
+				"qbytes=%lx ouid=%u ogid=%u mode=%#ho",
 				context->ipc.qbytes,
 				context->ipc.perm_uid,
 				context->ipc.perm_gid,
@@ -1278,7 +1278,7 @@ static void show_special(struct audit_context *context, int *call_panic)
 		break; }
 	case AUDIT_MQ_OPEN: {
 		audit_log_format(ab,
-			"oflag=0x%x mode=%#o mq_flags=0x%lx mq_maxmsg=%ld "
+			"oflag=0x%x mode=%#ho mq_flags=0x%lx mq_maxmsg=%ld "
 			"mq_msgsize=%ld mq_curmsgs=%ld",
 			context->mq_open.oflag, context->mq_open.mode,
 			context->mq_open.attr.mq_flags,
@@ -1502,7 +1502,7 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
 
 		if (n->ino != (unsigned long)-1) {
 			audit_log_format(ab, " inode=%lu"
-					 " dev=%02x:%02x mode=%#o"
+					 " dev=%02x:%02x mode=%#ho"
 					 " ouid=%u ogid=%u rdev=%02x:%02x",
 					 n->ino,
 					 MAJOR(n->dev),
@@ -2160,7 +2160,7 @@ int audit_set_loginuid(struct task_struct *task, uid_t loginuid)
  * @attr: queue attributes
  *
  */
-void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr)
+void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
 {
 	struct audit_context *context = current->audit_context;
 
@@ -2260,7 +2260,7 @@ void __audit_ipc_obj(struct kern_ipc_perm *ipcp)
  *
  * Called only after audit_ipc_obj().
  */
-void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
+void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
 {
 	struct audit_context *context = current->audit_context;
 
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a184470cf9b..7cab65f83f1 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -760,7 +760,7 @@ EXPORT_SYMBOL_GPL(cgroup_unlock);
  * -> cgroup_mkdir.
  */
 
-static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 static struct dentry *cgroup_lookup(struct inode *, struct dentry *, struct nameidata *);
 static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry);
 static int cgroup_populate_dir(struct cgroup *cgrp);
@@ -775,7 +775,7 @@ static struct backing_dev_info cgroup_backing_dev_info = {
 static int alloc_css_id(struct cgroup_subsys *ss,
 			struct cgroup *parent, struct cgroup *child);
 
-static struct inode *cgroup_new_inode(mode_t mode, struct super_block *sb)
+static struct inode *cgroup_new_inode(umode_t mode, struct super_block *sb)
 {
 	struct inode *inode = new_inode(sb);
 
@@ -1038,9 +1038,9 @@ static int rebind_subsystems(struct cgroupfs_root *root,
 	return 0;
 }
 
-static int cgroup_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int cgroup_show_options(struct seq_file *seq, struct dentry *dentry)
 {
-	struct cgroupfs_root *root = vfs->mnt_sb->s_fs_info;
+	struct cgroupfs_root *root = dentry->d_sb->s_fs_info;
 	struct cgroup_subsys *ss;
 
 	mutex_lock(&cgroup_mutex);
@@ -2585,7 +2585,7 @@ static inline struct cftype *__file_cft(struct file *file)
 	return __d_cft(file->f_dentry);
 }
 
-static int cgroup_create_file(struct dentry *dentry, mode_t mode,
+static int cgroup_create_file(struct dentry *dentry, umode_t mode,
 				struct super_block *sb)
 {
 	struct inode *inode;
@@ -2626,7 +2626,7 @@ static int cgroup_create_file(struct dentry *dentry, mode_t mode,
  * @mode: mode to set on new directory.
  */
 static int cgroup_create_dir(struct cgroup *cgrp, struct dentry *dentry,
-				mode_t mode)
+				umode_t mode)
 {
 	struct dentry *parent;
 	int error = 0;
@@ -2653,9 +2653,9 @@ static int cgroup_create_dir(struct cgroup *cgrp, struct dentry *dentry,
  * returns S_IRUGO if it has only a read handler
  * returns S_IWUSR if it has only a write hander
  */
-static mode_t cgroup_file_mode(const struct cftype *cft)
+static umode_t cgroup_file_mode(const struct cftype *cft)
 {
-	mode_t mode = 0;
+	umode_t mode = 0;
 
 	if (cft->mode)
 		return cft->mode;
@@ -2678,7 +2678,7 @@ int cgroup_add_file(struct cgroup *cgrp,
 	struct dentry *dir = cgrp->dentry;
 	struct dentry *dentry;
 	int error;
-	mode_t mode;
+	umode_t mode;
 
 	char name[MAX_CGROUP_TYPE_NAMELEN + MAX_CFTYPE_NAME + 2] = { 0 };
 	if (subsys && !test_bit(ROOT_NOPREFIX, &cgrp->root->flags)) {
@@ -3752,7 +3752,7 @@ static void cgroup_unlock_hierarchy(struct cgroupfs_root *root)
  * Must be called with the mutex on the parent inode held
  */
 static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
-			     mode_t mode)
+			     umode_t mode)
 {
 	struct cgroup *cgrp;
 	struct cgroupfs_root *root = parent->root;
@@ -3846,7 +3846,7 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
 	return err;
 }
 
-static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
 	struct cgroup *c_parent = dentry->d_parent->d_fsdata;
 
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 11a594c4ba2..3739ecced08 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -18,7 +18,6 @@
 #include <linux/bitops.h>
 #include <linux/genhd.h>
 #include <linux/device.h>
-#include <linux/buffer_head.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 #include <linux/swap.h>
diff --git a/kernel/relay.c b/kernel/relay.c
index 226fade4d72..4335e1d7ee2 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -302,7 +302,7 @@ static void buf_unmapped_default_callback(struct rchan_buf *buf,
  */
 static struct dentry *create_buf_file_default_callback(const char *filename,
 						       struct dentry *parent,
-						       int mode,
+						       umode_t mode,
 						       struct rchan_buf *buf,
 						       int *is_global)
 {
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2a4590fabca..0ac0f811d62 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5176,7 +5176,7 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
 static void
 set_table_entry(struct ctl_table *entry,
 		const char *procname, void *data, int maxlen,
-		mode_t mode, proc_handler *proc_handler)
+		umode_t mode, proc_handler *proc_handler)
 {
 	entry->procname = procname;
 	entry->data = data;
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 16fc34a0806..cdea7b56b0c 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -402,7 +402,7 @@ static int blk_remove_buf_file_callback(struct dentry *dentry)
 
 static struct dentry *blk_create_buf_file_callback(const char *filename,
 						   struct dentry *parent,
-						   int mode,
+						   umode_t mode,
 						   struct rchan_buf *buf,
 						   int *is_global)
 {
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 91dc4bc8bf7..a3f1bc5d2a0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4438,7 +4438,7 @@ static const struct file_operations trace_options_core_fops = {
 };
 
 struct dentry *trace_create_file(const char *name,
-				 mode_t mode,
+				 umode_t mode,
 				 struct dentry *parent,
 				 void *data,
 				 const struct file_operations *fops)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 2c2657462ac..b93ecbadad6 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -312,7 +312,7 @@ void tracing_reset_current(int cpu);
 void tracing_reset_current_online_cpus(void);
 int tracing_open_generic(struct inode *inode, struct file *filp);
 struct dentry *trace_create_file(const char *name,
-				 mode_t mode,
+				 umode_t mode,
 				 struct dentry *parent,
 				 void *data,
 				 const struct file_operations *fops);