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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_STATFS_H#define _LINUX_STATFS_H
#include <linux/types.h>#include <asm/statfs.h>#include <asm/byteorder.h>
struct kstatfs { long f_type; long f_bsize; u64 f_blocks; u64 f_bfree; u64 f_bavail; u64 f_files; u64 f_ffree; __kernel_fsid_t f_fsid; long f_namelen; long f_frsize; long f_flags; long f_spare[4];};
/* * Definitions for the flag in f_flag. * * Generally these flags are equivalent to the MS_ flags used in the mount * ABI. The exception is ST_VALID which has the same value as MS_REMOUNT * which doesn't make any sense for statfs. */#define ST_RDONLY 0x0001 /* mount read-only */#define ST_NOSUID 0x0002 /* ignore suid and sgid bits */#define ST_NODEV 0x0004 /* disallow access to device special files */#define ST_NOEXEC 0x0008 /* disallow program execution */#define ST_SYNCHRONOUS 0x0010 /* writes are synced at once */#define ST_VALID 0x0020 /* f_flags support is implemented */#define ST_MANDLOCK 0x0040 /* allow mandatory locks on an FS *//* 0x0080 used for ST_WRITE in glibc *//* 0x0100 used for ST_APPEND in glibc *//* 0x0200 used for ST_IMMUTABLE in glibc */#define ST_NOATIME 0x0400 /* do not update access times */#define ST_NODIRATIME 0x0800 /* do not update directory access times */#define ST_RELATIME 0x1000 /* update atime relative to mtime/ctime */#define ST_NOSYMFOLLOW 0x2000 /* do not follow symlinks */
struct dentry;extern int vfs_get_fsid(struct dentry *dentry, __kernel_fsid_t *fsid);
static inline __kernel_fsid_t u64_to_fsid(u64 v){ return (__kernel_fsid_t){.val = {(u32)v, (u32)(v>>32)}};}
/* Fold 16 bytes uuid to 64 bit fsid */static inline __kernel_fsid_t uuid_to_fsid(__u8 *uuid){ return u64_to_fsid(le64_to_cpup((void *)uuid) ^ le64_to_cpup((void *)(uuid + sizeof(u64))));}
#endif