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

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Pull  more VFS bits from Al Viro:
 "Unfortunately, it looks like xattr series will have to wait until the
  next cycle ;-/

  This pile contains 9p cleanups and fixes (races in v9fs_fid_add()
  etc), fixup for nommu breakage in shmem.c, several cleanups and a bit
  more file_inode() work"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  constify path_get/path_put and fs_struct.c stuff
  fix nommu breakage in shmem.c
  cache the value of file_inode() in struct file
  9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry
  9p: make sure ->lookup() adds fid to the right dentry
  9p: untangle ->lookup() a bit
  9p: double iput() in ->lookup() if d_materialise_unique() fails
  9p: v9fs_fid_add() can't fail now
  v9fs: get rid of v9fs_dentry
  9p: turn fid->dlist into hlist
  9p: don't bother with private lock in ->d_fsdata; dentry->d_lock will do just fine
  more file_inode() open-coded instances
  selinux: opened file can't have NULL or negative ->f_path.dentry

(In the meantime, the hlist traversal macros have changed, so this
required a semantic conflict fixup for the newly hlistified fid->dlist)
This commit is contained in:
Linus Torvalds
2013-03-03 13:23:02 -08:00
parent 1c82315a12 dcf787f391
commit 56a79b7b02
26 changed files with 108 additions and 171 deletions
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3
include/linux/fs.h
View File

@@ -769,6 +769,7 @@ struct file {
} f_u;
struct path f_path;
#define f_dentry f_path.dentry
struct inode *f_inode; /* cached value */
const struct file_operations *f_op;
/*
@@ -2217,7 +2218,7 @@ static inline bool execute_ok(struct inode *inode)
static inline struct inode *file_inode(struct file *f)
{
return f->f_path.dentry->d_inode;
return f->f_inode;
}
/*

4
include/linux/fs_struct.h
View File

@@ -17,8 +17,8 @@ struct fs_struct {
extern struct kmem_cache *fs_cachep;
extern void exit_fs(struct task_struct *);
extern void set_fs_root(struct fs_struct *, struct path *);
extern void set_fs_pwd(struct fs_struct *, struct path *);
extern void set_fs_root(struct fs_struct *, const struct path *);
extern void set_fs_pwd(struct fs_struct *, const struct path *);
extern struct fs_struct *copy_fs_struct(struct fs_struct *);
extern void free_fs_struct(struct fs_struct *);
extern int unshare_fs_struct(void);

4
include/linux/path.h
View File

@@ -9,8 +9,8 @@ struct path {
struct dentry *dentry;
};
extern void path_get(struct path *);
extern void path_put(struct path *);
extern void path_get(const struct path *);
extern void path_put(const struct path *);
static inline int path_equal(const struct path *path1, const struct path *path2)
{