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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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C
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455/* SPDX-License-Identifier: GPL-2.0 */#ifndef __LINUX_MEMFD_H#define __LINUX_MEMFD_H
#include <linux/file.h>
#define MEMFD_ANON_NAME "[memfd]"
#ifdef CONFIG_MEMFD_CREATEextern long memfd_fcntl(struct file *file, unsigned int cmd, unsigned int arg);struct folio *memfd_alloc_folio(struct file *memfd, pgoff_t idx);/* * Check for any existing seals on mmap, return an error if access is denied due * to sealing, or 0 otherwise. * * We also update VMA flags if appropriate by manipulating the VMA flags pointed * to by vma_flags_ptr. */int memfd_check_seals_mmap(struct file *file, vma_flags_t *vma_flags_ptr);struct file *memfd_alloc_file(const char *name, unsigned int flags);int memfd_get_seals(struct file *file);int memfd_add_seals(struct file *file, unsigned int seals);#elsestatic inline long memfd_fcntl(struct file *f, unsigned int c, unsigned int a){ return -EINVAL;}static inline struct folio *memfd_alloc_folio(struct file *memfd, pgoff_t idx){ return ERR_PTR(-EINVAL);}static inline int memfd_check_seals_mmap(struct file *file, vma_flags_t *vma_flags_ptr){ return 0;}
static inline struct file *memfd_alloc_file(const char *name, unsigned int flags){ return ERR_PTR(-EINVAL);}
static inline int memfd_get_seals(struct file *file){ return -EINVAL;}
static inline int memfd_add_seals(struct file *file, unsigned int seals){ return -EINVAL;}#endif
#endif /* __LINUX_MEMFD_H */