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new wrapper: alloc_file_pseudo()

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takes inode, vfsmount, name, O_... flags and file_operations and
either returns a new struct file (in which case inode reference we
held is consumed) or returns ERR_PTR(), in which case no refcounts
are altered.

converted aio_private_file() and sock_alloc_file() to it

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2018-06-09 09:40:05 -04:00
parent dbae8f2ca2
commit d93aa9d82a
4 changed files with 39 additions and 39 deletions
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3
include/linux/file.h
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@@ -17,9 +17,12 @@ extern void fput(struct file *);
struct file_operations;
struct vfsmount;
struct dentry;
struct inode;
struct path;
extern struct file *alloc_file(const struct path *, int flags,
const struct file_operations *fop);
extern struct file *alloc_file_pseudo(struct inode *, struct vfsmount *,
const char *, int flags, const struct file_operations *);
static inline void fput_light(struct file *file, int fput_needed)
{