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Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Browse source 
Pull vfs open-related updates from Al Viro:

 - "do we need fput() or put_filp()" rules are gone - it's always fput()
   now. We keep track of that state where it belongs - in ->f_mode.

 - int *opened mess killed - in finish_open(), in ->atomic_open()
   instances and in fs/namei.c code around do_last()/lookup_open()/atomic_open().

 - alloc_file() wrappers with saner calling conventions are introduced
   (alloc_file_clone() and alloc_file_pseudo()); callers converted, with
   much simplification.

 - while we are at it, saner calling conventions for path_init() and
   link_path_walk(), simplifying things inside fs/namei.c (both on
   open-related paths and elsewhere).

* 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits)
  few more cleanups of link_path_walk() callers
  allow link_path_walk() to take ERR_PTR()
  make path_init() unconditionally paired with terminate_walk()
  document alloc_file() changes
  make alloc_file() static
  do_shmat(): grab shp->shm_file earlier, switch to alloc_file_clone()
  new helper: alloc_file_clone()
  create_pipe_files(): switch the first allocation to alloc_file_pseudo()
  anon_inode_getfile(): switch to alloc_file_pseudo()
  hugetlb_file_setup(): switch to alloc_file_pseudo()
  ocxlflash_getfile(): switch to alloc_file_pseudo()
  cxl_getfile(): switch to alloc_file_pseudo()
  ... and switch shmem_file_setup() to alloc_file_pseudo()
  __shmem_file_setup(): reorder allocations
  new wrapper: alloc_file_pseudo()
  kill FILE_{CREATED,OPENED}
  switch atomic_open() and lookup_open() to returning 0 in all success cases
  document ->atomic_open() changes
  ->atomic_open(): return 0 in all success cases
  get rid of 'opened' in path_openat() and the helpers downstream
  ...
This commit is contained in:
Linus Torvalds 2018-08-13 19:58:36 -07:00
commit a66b4cd1e7
45 changed files with 371 additions and 576 deletions
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24
drivers/scsi/cxlflash/ocxl_hw.c
View file

@ -88,10 +88,8 @@ static struct file *ocxlflash_getfile(struct device *dev, const char *name,
const struct file_operations *fops,
void *priv, int flags)
{
struct qstr this;
struct path path;
struct file *file;
struct inode *inode = NULL;
struct inode *inode;
int rc;
if (fops->owner && !try_module_get(fops->owner)) {
@ -116,29 +114,15 @@ static struct file *ocxlflash_getfile(struct device *dev, const char *name,
goto err3;
}
this.name = name;
this.len = strlen(name);
this.hash = 0;
path.dentry = d_alloc_pseudo(ocxlflash_vfs_mount->mnt_sb, &this);
if (!path.dentry) {
dev_err(dev, "%s: d_alloc_pseudo failed\n", __func__);
rc = -ENOMEM;
goto err4;
}
path.mnt = mntget(ocxlflash_vfs_mount);
d_instantiate(path.dentry, inode);
file = alloc_file(&path, OPEN_FMODE(flags), fops);
file = alloc_file_pseudo(inode, ocxlflash_vfs_mount, name,
flags & (O_ACCMODE | O_NONBLOCK), fops);
if (IS_ERR(file)) {
rc = PTR_ERR(file);
dev_err(dev, "%s: alloc_file failed rc=%d\n",
__func__, rc);
path_put(&path);
goto err3;
goto err4;
}
file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
file->private_data = priv;
out:
return file;