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!123 support querying mount infomations by cat /proc/mounts 

Merge pull request !123 from JING/master
This commit is contained in:
openharmony_ci 2021-04-08 15:14:27 +08:00 committed by Gitee
parent cf5baa29f2 62c039b287
commit 58f07f94a0
2 changed files with 17 additions and 0 deletions
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2
fs/include/fs/mount.h
View File

@ -35,6 +35,7 @@
#include "fs/vfs_util.h"
#include "fs/vnode.h"
#include <sys/stat.h>
#include <limits.h>
struct MountOps;
@ -50,6 +51,7 @@ struct Mount {
void *data; /* private data */
uint32_t hashseed; /* Random seed for vfshash */
unsigned long mountFlags; /* Flags for mount */
char pathName[PATH_MAX]; /* path name of mount point */
};
struct MountOps {

15
fs/proc/os_adapt/proc_vfs.c
View File

@ -257,9 +257,23 @@ int VfsProcfsClose(struct file *filep)
return result;
}
int VfsProcfsStatfs(struct Mount *mnt, struct statfs *buf)
{
(void)memset_s(buf, sizeof(struct statfs), 0, sizeof(struct statfs));
buf->f_type = PROCFS_MAGIC;
return LOS_OK;
}
int VfsProcfsClosedir(struct Vnode *vp, struct fs_dirent_s *dir)
{
return LOS_OK;
}
const struct MountOps procfs_operations = {
.Mount = VfsProcfsMount,
.Unmount = NULL,
.Statfs = VfsProcfsStatfs,
};
static struct VnodeOps g_procfsVops = {
@ -267,6 +281,7 @@ static struct VnodeOps g_procfsVops = {
.Getattr = VfsProcfsStat,
.Readdir = VfsProcfsReaddir,
.Opendir = VfsProcfsOpendir,
.Closedir = VfsProcfsClosedir
};
static struct file_operations_vfs g_procfsFops = {