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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 05:52:03 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 05:52:03 +0400
commit79360ddd73dfe9a26f49ef4e27b8c26612929b0e (patch)
treea8b0d226e0d83ea4e3a8c27b091a7121dbb9638b /include/linux
parent8213a2f3eeafdecf06dd718cb4130372263f6067 (diff)
parent98f6ef64b15a48f15062aff5d143b5d9a6ae7711 (diff)
downloadlinux-79360ddd73dfe9a26f49ef4e27b8c26612929b0e.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull pile 2 of vfs updates from Al Viro: "Stuff in this one - assorted fixes, lglock tidy-up, death to lock_super(). There'll be a VFS pile tomorrow (with patches from Jeff Layton, sanitizing getname() and related parts of audit and preparing for ESTALE fixes), but I'd rather push the stuff in this one ASAP - some of the bugs closed here are quite unpleasant." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: bogus warnings in fs/namei.c consitify do_mount() arguments lglock: add DEFINE_STATIC_LGLOCK() lglock: make the per_cpu locks static lglock: remove unused DEFINE_LGLOCK_LOCKDEP() MAX_LFS_FILESIZE definition for 64bit needs LL... tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking vfs: drop lock/unlock super ufs: drop lock/unlock super sysv: drop lock/unlock super hpfs: drop lock/unlock super fat: drop lock/unlock super ext3: drop lock/unlock super exofs: drop lock/unlock super dup3: Return an error when oldfd == newfd. fs: handle failed audit_log_start properly fs: prevent use after free in auditing when symlink following was denied
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/fs.h5
-rw-r--r--include/linux/lglock.h19
-rw-r--r--include/linux/security.h12
3 files changed, 16 insertions, 20 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 39f3e12ca752..8ef2fc9f1f08 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1136,7 +1136,7 @@ static inline int file_check_writeable(struct file *filp)
#if BITS_PER_LONG==32
#define MAX_LFS_FILESIZE (((loff_t)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
#elif BITS_PER_LONG==64
-#define MAX_LFS_FILESIZE ((loff_t)0x7fffffffffffffff)
+#define MAX_LFS_FILESIZE ((loff_t)0x7fffffffffffffffLL)
#endif
#define FL_POSIX 1
@@ -1511,7 +1511,6 @@ struct super_block {
unsigned long s_magic;
struct dentry *s_root;
struct rw_semaphore s_umount;
- struct mutex s_lock;
int s_count;
atomic_t s_active;
#ifdef CONFIG_SECURITY
@@ -2080,7 +2079,7 @@ extern struct vfsmount *kern_mount_data(struct file_system_type *, void *data);
extern void kern_unmount(struct vfsmount *mnt);
extern int may_umount_tree(struct vfsmount *);
extern int may_umount(struct vfsmount *);
-extern long do_mount(char *, char *, char *, unsigned long, void *);
+extern long do_mount(const char *, const char *, const char *, unsigned long, void *);
extern struct vfsmount *collect_mounts(struct path *);
extern void drop_collected_mounts(struct vfsmount *);
extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
diff --git a/include/linux/lglock.h b/include/linux/lglock.h
index f01e5f6d1f07..0d24e932db0b 100644
--- a/include/linux/lglock.h
+++ b/include/linux/lglock.h
@@ -32,20 +32,13 @@
#define br_write_lock(name) lg_global_lock(name)
#define br_write_unlock(name) lg_global_unlock(name)
-#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
+#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
+#define DEFINE_STATIC_BRLOCK(name) DEFINE_STATIC_LGLOCK(name)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define LOCKDEP_INIT_MAP lockdep_init_map
-
-#define DEFINE_LGLOCK_LOCKDEP(name) \
- struct lock_class_key name##_lock_key; \
- struct lockdep_map name##_lock_dep_map; \
- EXPORT_SYMBOL(name##_lock_dep_map)
-
#else
#define LOCKDEP_INIT_MAP(a, b, c, d)
-
-#define DEFINE_LGLOCK_LOCKDEP(name)
#endif
struct lglock {
@@ -57,11 +50,15 @@ struct lglock {
};
#define DEFINE_LGLOCK(name) \
- DEFINE_LGLOCK_LOCKDEP(name); \
- DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
+ static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
= __ARCH_SPIN_LOCK_UNLOCKED; \
struct lglock name = { .lock = &name ## _lock }
+#define DEFINE_STATIC_LGLOCK(name) \
+ static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
+ = __ARCH_SPIN_LOCK_UNLOCKED; \
+ static struct lglock name = { .lock = &name ## _lock }
+
void lg_lock_init(struct lglock *lg, char *name);
void lg_local_lock(struct lglock *lg);
void lg_local_unlock(struct lglock *lg);
diff --git a/include/linux/security.h b/include/linux/security.h
index 5b50c4e1a7c2..05e88bdcf7d9 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1411,8 +1411,8 @@ struct security_operations {
int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
int (*sb_statfs) (struct dentry *dentry);
- int (*sb_mount) (char *dev_name, struct path *path,
- char *type, unsigned long flags, void *data);
+ int (*sb_mount) (const char *dev_name, struct path *path,
+ const char *type, unsigned long flags, void *data);
int (*sb_umount) (struct vfsmount *mnt, int flags);
int (*sb_pivotroot) (struct path *old_path,
struct path *new_path);
@@ -1694,8 +1694,8 @@ int security_sb_remount(struct super_block *sb, void *data);
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
int security_sb_statfs(struct dentry *dentry);
-int security_sb_mount(char *dev_name, struct path *path,
- char *type, unsigned long flags, void *data);
+int security_sb_mount(const char *dev_name, struct path *path,
+ const char *type, unsigned long flags, void *data);
int security_sb_umount(struct vfsmount *mnt, int flags);
int security_sb_pivotroot(struct path *old_path, struct path *new_path);
int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
@@ -1964,8 +1964,8 @@ static inline int security_sb_statfs(struct dentry *dentry)
return 0;
}
-static inline int security_sb_mount(char *dev_name, struct path *path,
- char *type, unsigned long flags,
+static inline int security_sb_mount(const char *dev_name, struct path *path,
+ const char *type, unsigned long flags,
void *data)
{
return 0;