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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-14 05:58:36 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-14 05:58:36 +0300
commita66b4cd1e7163adb327838a3c81faaf6a9330d5a (patch)
tree2b123a010bb0f1566ff6f34e529f01ddf10ee308 /drivers/misc
parentb16528466786a540cb00148acb124e0149d62710 (diff)
parent5f336e722cc961be94d264d96b90c92888fffae1 (diff)
downloadlinux-a66b4cd1e7163adb327838a3c81faaf6a9330d5a.tar.xz
Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
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 ...
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/cxl/api.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 6b16946f9b05..8fd5ec4d6042 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -67,10 +67,8 @@ static struct file *cxl_getfile(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;
/* strongly inspired by anon_inode_getfile() */
@@ -91,23 +89,11 @@ static struct file *cxl_getfile(const char *name,
goto err_fs;
}
- file = ERR_PTR(-ENOMEM);
- this.name = name;
- this.len = strlen(name);
- this.hash = 0;
- path.dentry = d_alloc_pseudo(cxl_vfs_mount->mnt_sb, &this);
- if (!path.dentry)
+ file = alloc_file_pseudo(inode, cxl_vfs_mount, name,
+ flags & (O_ACCMODE | O_NONBLOCK), fops);
+ if (IS_ERR(file))
goto err_inode;
- path.mnt = mntget(cxl_vfs_mount);
- d_instantiate(path.dentry, inode);
-
- file = alloc_file(&path, OPEN_FMODE(flags), fops);
- if (IS_ERR(file)) {
- path_put(&path);
- goto err_fs;
- }
- file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
file->private_data = priv;
return file;