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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-28 20:38:04 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-28 20:38:04 +0400
commitbf3d846b783327359ddc4bd4f52627b36abb4d1d (patch)
treec6b8fddbf04a2962dfcf9f487af25033f11b10b9 /include
parent54c0a4b46150db1571d955d598cd342c9f1d9657 (diff)
parentf6500801522c61782d4990fa1ad96154cb397cd4 (diff)
downloadlinux-bf3d846b783327359ddc4bd4f52627b36abb4d1d.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro: "Assorted stuff; the biggest pile here is Christoph's ACL series. Plus assorted cleanups and fixes all over the place... There will be another pile later this week" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (43 commits) __dentry_path() fixes vfs: Remove second variable named error in __dentry_path vfs: Is mounted should be testing mnt_ns for NULL or error. Fix race when checking i_size on direct i/o read hfsplus: remove can_set_xattr nfsd: use get_acl and ->set_acl fs: remove generic_acl nfs: use generic posix ACL infrastructure for v3 Posix ACLs gfs2: use generic posix ACL infrastructure jfs: use generic posix ACL infrastructure xfs: use generic posix ACL infrastructure reiserfs: use generic posix ACL infrastructure ocfs2: use generic posix ACL infrastructure jffs2: use generic posix ACL infrastructure hfsplus: use generic posix ACL infrastructure f2fs: use generic posix ACL infrastructure ext2/3/4: use generic posix ACL infrastructure btrfs: use generic posix ACL infrastructure fs: make posix_acl_create more useful fs: make posix_acl_chmod more useful ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/cramfs_fs.h10
-rw-r--r--include/linux/cramfs_fs_sb.h20
-rw-r--r--include/linux/fdtable.h35
-rw-r--r--include/linux/fs.h1
-rw-r--r--include/linux/generic_acl.h14
-rw-r--r--include/linux/nfs_fs.h24
-rw-r--r--include/linux/nls.h3
-rw-r--r--include/linux/posix_acl.h43
-rw-r--r--include/linux/posix_acl_xattr.h3
-rw-r--r--include/linux/rcupdate.h2
10 files changed, 73 insertions, 82 deletions
diff --git a/include/linux/cramfs_fs.h b/include/linux/cramfs_fs.h
deleted file mode 100644
index 133789609f23..000000000000
--- a/include/linux/cramfs_fs.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __CRAMFS_H
-#define __CRAMFS_H
-
-#include <uapi/linux/cramfs_fs.h>
-
-/* Uncompression interfaces to the underlying zlib */
-int cramfs_uncompress_block(void *dst, int dstlen, void *src, int srclen);
-int cramfs_uncompress_init(void);
-void cramfs_uncompress_exit(void);
-#endif
diff --git a/include/linux/cramfs_fs_sb.h b/include/linux/cramfs_fs_sb.h
deleted file mode 100644
index 8390693568fd..000000000000
--- a/include/linux/cramfs_fs_sb.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _CRAMFS_FS_SB
-#define _CRAMFS_FS_SB
-
-/*
- * cramfs super-block data in memory
- */
-struct cramfs_sb_info {
- unsigned long magic;
- unsigned long size;
- unsigned long blocks;
- unsigned long files;
- unsigned long flags;
-};
-
-static inline struct cramfs_sb_info *CRAMFS_SB(struct super_block *sb)
-{
- return sb->s_fs_info;
-}
-
-#endif
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 085197bd8812..70e8e21c0a30 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -59,29 +59,36 @@ struct files_struct {
struct file __rcu * fd_array[NR_OPEN_DEFAULT];
};
-#define rcu_dereference_check_fdtable(files, fdtfd) \
- (rcu_dereference_check((fdtfd), \
- lockdep_is_held(&(files)->file_lock) || \
- atomic_read(&(files)->count) == 1 || \
- rcu_my_thread_group_empty()))
-
-#define files_fdtable(files) \
- (rcu_dereference_check_fdtable((files), (files)->fdt))
-
struct file_operations;
struct vfsmount;
struct dentry;
extern void __init files_defer_init(void);
-static inline struct file * fcheck_files(struct files_struct *files, unsigned int fd)
+#define rcu_dereference_check_fdtable(files, fdtfd) \
+ rcu_dereference_check((fdtfd), lockdep_is_held(&(files)->file_lock))
+
+#define files_fdtable(files) \
+ rcu_dereference_check_fdtable((files), (files)->fdt)
+
+/*
+ * The caller must ensure that fd table isn't shared or hold rcu or file lock
+ */
+static inline struct file *__fcheck_files(struct files_struct *files, unsigned int fd)
{
- struct file * file = NULL;
- struct fdtable *fdt = files_fdtable(files);
+ struct fdtable *fdt = rcu_dereference_raw(files->fdt);
if (fd < fdt->max_fds)
- file = rcu_dereference_check_fdtable(files, fdt->fd[fd]);
- return file;
+ return rcu_dereference_raw(fdt->fd[fd]);
+ return NULL;
+}
+
+static inline struct file *fcheck_files(struct files_struct *files, unsigned int fd)
+{
+ rcu_lockdep_assert(rcu_read_lock_held() ||
+ lockdep_is_held(&files->file_lock),
+ "suspicious rcu_dereference_check() usage");
+ return __fcheck_files(files, fd);
}
/*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 121f11f001c0..09f553c59813 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1580,6 +1580,7 @@ struct inode_operations {
struct file *, unsigned open_flag,
umode_t create_mode, int *opened);
int (*tmpfile) (struct inode *, struct dentry *, umode_t);
+ int (*set_acl)(struct inode *, struct posix_acl *, int);
} ____cacheline_aligned;
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
diff --git a/include/linux/generic_acl.h b/include/linux/generic_acl.h
deleted file mode 100644
index b6d657544ef1..000000000000
--- a/include/linux/generic_acl.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef LINUX_GENERIC_ACL_H
-#define LINUX_GENERIC_ACL_H
-
-#include <linux/xattr.h>
-
-struct inode;
-
-extern const struct xattr_handler generic_acl_access_handler;
-extern const struct xattr_handler generic_acl_default_handler;
-
-int generic_acl_init(struct inode *, struct inode *);
-int generic_acl_chmod(struct inode *);
-
-#endif /* LINUX_GENERIC_ACL_H */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 48997374eaf0..2b00625952a7 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -154,10 +154,6 @@ struct nfs_inode {
struct rb_root access_cache;
struct list_head access_cache_entry_lru;
struct list_head access_cache_inode_lru;
-#ifdef CONFIG_NFS_V3_ACL
- struct posix_acl *acl_access;
- struct posix_acl *acl_default;
-#endif
/*
* This is the cookie verifier used for NFSv3 readdir
@@ -564,23 +560,17 @@ extern int nfs_readpage_async(struct nfs_open_context *, struct inode *,
* linux/fs/nfs3proc.c
*/
#ifdef CONFIG_NFS_V3_ACL
-extern struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type);
-extern int nfs3_proc_setacl(struct inode *inode, int type,
- struct posix_acl *acl);
-extern int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode,
- umode_t mode);
-extern void nfs3_forget_cached_acls(struct inode *inode);
+extern struct posix_acl *nfs3_get_acl(struct inode *inode, int type);
+extern int nfs3_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+extern int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
+ struct posix_acl *dfacl);
+extern const struct xattr_handler *nfs3_xattr_handlers[];
#else
-static inline int nfs3_proc_set_default_acl(struct inode *dir,
- struct inode *inode,
- umode_t mode)
+static inline int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
+ struct posix_acl *dfacl)
{
return 0;
}
-
-static inline void nfs3_forget_cached_acls(struct inode *inode)
-{
-}
#endif /* CONFIG_NFS_V3_ACL */
/*
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 5dc635f8d79e..520681b68208 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -44,11 +44,12 @@ enum utf16_endian {
};
/* nls_base.c */
-extern int register_nls(struct nls_table *);
+extern int __register_nls(struct nls_table *, struct module *);
extern int unregister_nls(struct nls_table *);
extern struct nls_table *load_nls(char *);
extern void unload_nls(struct nls_table *);
extern struct nls_table *load_nls_default(void);
+#define register_nls(nls) __register_nls((nls), THIS_MODULE)
extern int utf8_to_utf32(const u8 *s, int len, unicode_t *pu);
extern int utf32_to_utf8(unicode_t u, u8 *s, int maxlen);
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 833099bf8090..3e96a6a76103 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -85,12 +85,20 @@ extern int posix_acl_valid(const struct posix_acl *);
extern int posix_acl_permission(struct inode *, const struct posix_acl *, int);
extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t);
extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *);
-extern int posix_acl_create(struct posix_acl **, gfp_t, umode_t *);
-extern int posix_acl_chmod(struct posix_acl **, gfp_t, umode_t);
+extern int __posix_acl_create(struct posix_acl **, gfp_t, umode_t *);
+extern int __posix_acl_chmod(struct posix_acl **, gfp_t, umode_t);
extern struct posix_acl *get_posix_acl(struct inode *, int);
extern int set_posix_acl(struct inode *, int, struct posix_acl *);
+#ifdef CONFIG_FS_POSIX_ACL
+extern int posix_acl_chmod(struct inode *, umode_t);
+extern int posix_acl_create(struct inode *, umode_t *, struct posix_acl **,
+ struct posix_acl **);
+
+extern int simple_set_acl(struct inode *, struct posix_acl *, int);
+extern int simple_acl_create(struct inode *, struct inode *);
+
struct posix_acl **acl_by_type(struct inode *inode, int type);
struct posix_acl *get_cached_acl(struct inode *inode, int type);
struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type);
@@ -100,10 +108,37 @@ void forget_all_cached_acls(struct inode *inode);
static inline void cache_no_acl(struct inode *inode)
{
-#ifdef CONFIG_FS_POSIX_ACL
inode->i_acl = NULL;
inode->i_default_acl = NULL;
-#endif
}
+#else
+static inline int posix_acl_chmod(struct inode *inode, umode_t mode)
+{
+ return 0;
+}
+
+#define simple_set_acl NULL
+
+static inline int simple_acl_create(struct inode *dir, struct inode *inode)
+{
+ return 0;
+}
+static inline void cache_no_acl(struct inode *inode)
+{
+}
+
+static inline int posix_acl_create(struct inode *inode, umode_t *mode,
+ struct posix_acl **default_acl, struct posix_acl **acl)
+{
+ *default_acl = *acl = NULL;
+ return 0;
+}
+
+static inline void forget_all_cached_acls(struct inode *inode)
+{
+}
+#endif /* CONFIG_FS_POSIX_ACL */
+
+struct posix_acl *get_acl(struct inode *inode, int type);
#endif /* __LINUX_POSIX_ACL_H */
diff --git a/include/linux/posix_acl_xattr.h b/include/linux/posix_acl_xattr.h
index ad93ad0f1db0..6f14ee295822 100644
--- a/include/linux/posix_acl_xattr.h
+++ b/include/linux/posix_acl_xattr.h
@@ -69,4 +69,7 @@ struct posix_acl *posix_acl_from_xattr(struct user_namespace *user_ns,
int posix_acl_to_xattr(struct user_namespace *user_ns,
const struct posix_acl *acl, void *buffer, size_t size);
+extern const struct xattr_handler posix_acl_access_xattr_handler;
+extern const struct xattr_handler posix_acl_default_xattr_handler;
+
#endif /* _POSIX_ACL_XATTR_H */
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 3e355c688618..72bf3a01a4ee 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -449,8 +449,6 @@ static inline int rcu_read_lock_sched_held(void)
#ifdef CONFIG_PROVE_RCU
-int rcu_my_thread_group_empty(void);
-
/**
* rcu_lockdep_assert - emit lockdep splat if specified condition not met
* @c: condition to check