static int ccfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int rc;
struct dentry *lower_dentry;
struct dentry *lower_dir_dentry;
lower_dentry = ccfs_get_nested_dentry(dentry);
lower_dir_dentry = lock_parent(lower_dentry);
mdbg(INFO3,"MKDIR w/ lower_dentry->d_name.name = [%s] DIR = [%s]", lower_dentry->d_name.name, lower_dir_dentry->d_name.name);
rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, mode);
if (rc || !lower_dentry->d_inode)
goto out;
rc = ccfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
if (rc)
goto out;
fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
set_nlink(dir, lower_dir_dentry->d_inode->i_nlink); //Fix for kernel 3.7.1 use function set_nlink by Jiri Rakosnik
out:
unlock_dir(lower_dir_dentry);
if (!dentry->d_inode)
d_drop(dentry);
return rc;
}
int do_mkdir (struct inode *inode, const char *name, int len, int mode)
{
#if USE_DENTRY_F
struct dentry *tmp_dent;
#endif
int ret_code;
DOWN(&(inode->i_sem));
#if USE_DENTRY_F
/* Create a temporary negative dentry for the target. */
ret_code = ovlfs_inode_get_child_dentry(inode, name, len, &tmp_dent,
OVLFS_DENT_GET_NEGATIVE);
if ( ret_code == 0 )
{
/* Use the vfs_mkdir function to do the dirty work. */
ret_code = vfs_mkdir(inode, tmp_dent, mode);
dput(tmp_dent);
}
#else
IMARK(inode);
ret_code = inode->i_op->mkdir(inode, name, len, mode);
#endif
UP(&(inode->i_sem));
return ret_code;
}
static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
int rc;
struct dentry *lower_dentry;
struct vfsmount *lower_mnt;
struct dentry *lower_dir_dentry;
lower_dentry = ecryptfs_dentry_to_lower(dentry);
lower_mnt = ecryptfs_dentry_to_lower_mnt(dentry);
lower_dir_dentry = lock_parent(lower_dentry);
rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, lower_mnt,
mode);
if (rc || !lower_dentry->d_inode)
goto out;
rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
if (rc)
goto out;
fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
dir->i_nlink = lower_dir_dentry->d_inode->i_nlink;
out:
unlock_dir(lower_dir_dentry);
if (!dentry->d_inode)
d_drop(dentry);
return rc;
}
static int dev_mkdir(const char *name, mode_t mode)
{
struct nameidata nd;
struct dentry *dentry;
int err;
err = vfs_path_lookup(dev_mnt->mnt_root, dev_mnt,
name, LOOKUP_PARENT, &nd);
if (err)
return err;
dentry = lookup_create(&nd, 1);
if (!IS_ERR(dentry)) {
err = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode);
if (!err)
/* mark as kernel-created inode */
dentry->d_inode->i_private = &dev_mnt;
dput(dentry);
} else {
err = PTR_ERR(dentry);
}
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
path_put(&nd.path);
return err;
}
static int wrapfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int err;
struct dentry *lower_dentry;
struct dentry *lower_parent_dentry = NULL;
struct path lower_path;
wrapfs_get_lower_path(dentry, &lower_path);
lower_dentry = lower_path.dentry;
lower_parent_dentry = lock_parent(lower_dentry);
err = vfs_mkdir(lower_parent_dentry->d_inode, lower_dentry, mode);
if (err)
goto out;
err = wrapfs_interpose(dentry, dir->i_sb, &lower_path);
if (err)
goto out;
fsstack_copy_attr_times(dir, wrapfs_lower_inode(dir));
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
/* update number of links on parent directory */
set_nlink(dir, wrapfs_lower_inode(dir)->i_nlink);
out:
unlock_dir(lower_parent_dentry);
wrapfs_put_lower_path(dentry, &lower_path);
#ifdef NEKTECH_LOGGER /*NEKTECH LOGGING*/
nektech_logger (dir, dentry, NEKTECH_MKDIR);
#endif /*NEKTECH LOGGING*/
return err;
}
static int wrapfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
int err = 0;
struct dentry *lower_dentry;
struct dentry *lower_parent_dentry = NULL;
struct path lower_path;
wrapfs_get_lower_path(dentry, &lower_path);
lower_dentry = lower_path.dentry;
lower_parent_dentry = lock_parent(lower_dentry);
err = mnt_want_write(lower_path.mnt);
if (err)
goto out_unlock;
err = vfs_mkdir(lower_parent_dentry->d_inode, lower_dentry, mode);
if (err)
goto out;
err = wrapfs_interpose(dentry, dir->i_sb, &lower_path);
if (err)
goto out;
fsstack_copy_attr_times(dir, wrapfs_lower_inode(dir));
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
/* update number of links on parent directory */
set_nlink(dir, wrapfs_lower_inode(dir)->i_nlink);
out:
mnt_drop_write(lower_path.mnt);
out_unlock:
unlock_dir(lower_parent_dentry);
wrapfs_put_lower_path(dentry, &lower_path);
return err;
}
static int diaryfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) {
int err;
struct dentry * lower_dentry;
struct dentry * lower_parent_dentry = NULL;
struct path lower_path;
diaryfs_get_lower_path(dentry, &lower_path);
lower_dentry = lower_path.dentry;
lower_parent_dentry = lock_parent(lower_dentry);
err = vfs_mkdir(lower_parent_dentry->d_inode, lower_dentry, mode);
if (err)
goto out;
err = diaryfs_interpose(dentry, dir->i_sb, &lower_path);
if (err)
goto out;
fsstack_copy_attr_times(dir, diaryfs_lower_inode(dir));
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
/* update the # of links on parent directory */
set_nlink(dir, diaryfs_lower_inode(dir)->i_nlink);
out:
unlock_dir(lower_parent_dentry);
diaryfs_put_lower_path(dentry, &lower_path);
return err;
}
/* sys_mkdir
* Copies the given path into the kernel space, and call vfs_mkdir.
*/
int
sys_mkdir(userptr_t path, int mode) {
char *p;
int result;
if ((p = (char *)kmalloc(__PATH_MAX)) == NULL) {
return ENOMEM;
}
/* Copy in the path */
result = copyinstr(path, p, __PATH_MAX, NULL);
if (result) {
kfree(p);
return result;
}
/* Check that given path of directory is valid */
if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) {
kfree(p);
return EEXIST;
}
result = vfs_mkdir(p, mode);
kfree(p);
return result;
}
void __u2fs_mkdir(struct work_struct *work)
{
struct sioq_args *args = container_of(work, struct sioq_args, work);
struct mkdir_args *m = &args->mkdir;
args->err = vfs_mkdir(m->parent, m->dentry, m->mode);
complete(&args->comp);
}
static int u2fs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
int err = 0;
struct dentry *lower_dentry;
struct dentry *lower_parent_dentry = NULL;
struct path lower_path;
struct dentry *ret = NULL;
/* creating parent directories if destination is read-only */
if((U2FS_D(dentry)->lower_path[LEFT].dentry) == NULL &&
(U2FS_D(dentry)->lower_path[LEFT].mnt) == NULL){
ret = create_parents(dir, dentry, dentry->d_name.name);
if (!ret || IS_ERR(ret)) {
err = PTR_ERR(ret);
if (!IS_COPYUP_ERR(err))
printk(KERN_ERR
"u2fs: create_parents for "
"u2fs_mkdir failed"
"err=%d\n", err);
goto out_copyup;
}
u2fs_postcopyup_setmnt(dentry);
u2fs_put_reset_lower_path(dentry, RIGHT);
}
u2fs_get_lower_path(dentry, &lower_path, LEFT);
lower_dentry = lower_path.dentry;
lower_parent_dentry = lock_parent(lower_dentry);
err = mnt_want_write(lower_path.mnt);
if (err)
goto out_unlock;
err = vfs_mkdir(lower_parent_dentry->d_inode, lower_dentry, mode);
if (err)
goto out;
err = u2fs_interpose(dentry, dir->i_sb, &lower_path, LEFT);
if (err)
goto out;
fsstack_copy_attr_times(dir, u2fs_lower_inode(dir, LEFT));
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
/* update number of links on parent directory */
set_nlink(dir, u2fs_lower_inode(dir, LEFT)->i_nlink);
out:
mnt_drop_write(lower_path.mnt);
out_unlock:
unlock_dir(lower_parent_dentry);
u2fs_put_lower_path(dentry, &lower_path);
out_copyup:
return err;
}
static int cmd_vfs_mkdir(struct vmm_chardev *cdev, const char *path)
{
int rc;
struct stat st;
rc = vfs_stat(path, &st);
if (!rc) {
vmm_cprintf(cdev, "Path %s already exist.\n", path);
return VMM_EEXIST;
}
return vfs_mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO);
}
int main(int argc, char *argv[])
{
vfs_init();
vfs_mkdir("/fat");
errval_t err = vfs_mount("/fat", "fat32://0+0");
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "vfs_fat_mount failed");
}
walk_dir("/fat");
return 0;
}
static int sdcardfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
int err = 0;
struct dentry *lower_dentry;
struct dentry *lower_parent_dentry = NULL;
struct path lower_path;
OVERRIDE_CRED(SDCARDFS_SB(dir->i_sb));
#if defined(LOWER_FS_MIN_FREE_SIZE)
/* check disk space */
if (!check_min_free_space(dentry, 0, 1)) {
REVERT_CRED();
printk(KERN_INFO "No minimum free space.\n");
return -ENOSPC;
}
#endif
sdcardfs_get_lower_path(dentry, &lower_path);
lower_dentry = lower_path.dentry;
lower_parent_dentry = lock_parent(lower_dentry);
err = mnt_want_write(lower_path.mnt);
if (err)
goto out_unlock;
/* set last 16bytes of mode field to 0775 */
mode = (mode & S_IFMT) | 00775;
err = vfs_mkdir(lower_parent_dentry->d_inode, lower_dentry, mode);
if (err)
goto out;
err = sdcardfs_interpose(dentry, dir->i_sb, &lower_path);
if (err)
goto out;
fsstack_copy_attr_times(dir, sdcardfs_lower_inode(dir));
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
/* update number of links on parent directory */
dir->i_nlink = sdcardfs_lower_inode(dir)->i_nlink;
out:
mnt_drop_write(lower_path.mnt);
out_unlock:
unlock_dir(lower_parent_dentry);
sdcardfs_put_lower_path(dentry, &lower_path);
REVERT_CRED();
return err;
}
int do_vfsub_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
int err;
LKTRTrace("i%lu, %.*s, 0x%x\n", dir->i_ino, AuDLNPair(dentry), mode);
IMustLock(dir);
err = vfs_mkdir(dir, dentry, mode);
if (!err) {
/* dir inode is locked */
au_update_fuse_h_inode(NULL, dentry->d_parent); /*ignore*/
au_update_fuse_h_inode(NULL, dentry); /*ignore*/
}
return err;
}
static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int rc;
struct dentry *lower_dentry;
struct dentry *lower_dir_dentry;
lower_dentry = ecryptfs_dentry_to_lower(dentry);
lower_dir_dentry = lock_parent(lower_dentry);
#ifdef CONFIG_SDP
if(!strncmp(lower_dir_dentry->d_sb->s_type->name, "sdcardfs", 8)) {
struct sdcardfs_dentry_info *dinfo = SDCARDFS_D(lower_dir_dentry);
int len = strlen(dentry->d_name.name);
int i, numeric = 1;
dinfo->under_knox = 1;
dinfo->userid = -1;
if(IS_UNDER_ROOT(dentry)) {
for(i=0 ; i < len ; i++)
if(!isdigit(dentry->d_name.name[i])) { numeric = 0; break; }
if(numeric) {
dinfo->userid = simple_strtoul(dentry->d_name.name, NULL, 10);
}
}
}
#endif
rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, mode);
if (rc || !lower_dentry->d_inode)
goto out;
rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);
if (rc)
goto out;
fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
set_nlink(dir, lower_dir_dentry->d_inode->i_nlink);
out:
#ifdef CONFIG_SDP
if(!strncmp(lower_dir_dentry->d_sb->s_type->name, "sdcardfs", 8)) {
struct sdcardfs_dentry_info *dinfo = SDCARDFS_D(lower_dir_dentry);
dinfo->under_knox = 0;
dinfo->userid = -1;
}
#endif
unlock_dir(lower_dir_dentry);
if (!dentry->d_inode)
d_drop(dentry);
return rc;
}
int main(int argc, char *argv[])
{
errval_t err;
vfs_init();
err = vfs_mkdir("/filetests");
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "vfs_mkdir failed");
}
/* Create a file with a lot of data */
FILE *fh = fopen("/filetests/fread_test.dat", "w");
if (!fh) {
USER_PANIC("fopen failed");
}
for (int i = 0; i < AMOUNT; i++) {
fprintf(fh, "h");
}
fclose(fh);
/* Read out the data in chunks */
fh = fopen("/filetests/fread_test.dat", "r");
if (!fh) {
USER_PANIC("fopen failed");
}
char *ptr = malloc(AMOUNT);
assert(ptr);
size_t size = fread(ptr, 10, 1, fh);
if (size != 10) {
USER_PANIC("fread did not read full amount");
}
size = fread(ptr, AMOUNT - 10, 1, fh);
if (size != AMOUNT - 10) {
USER_PANIC("fread did not read full amount");
}
size = fread(ptr, AMOUNT, 1, fh);
if (size != 0) {
USER_PANIC("fread did not read full amount");
}
printf("client done\n");
return 0;
}
static void cmd_mkd(const char *arg, struct tcp_pcb *pcb, struct ftpd_msgstate *fsm)
{
if (arg == NULL) {
send_msg(pcb, fsm, msg501);
return;
}
if (*arg == '\0') {
send_msg(pcb, fsm, msg501);
return;
}
if (vfs_mkdir(fsm->vfs, arg, VFS_IRWXU | VFS_IRWXG | VFS_IRWXO) != 0) {
send_msg(pcb, fsm, msg550);
} else {
send_msg(pcb, fsm, msg257, arg);
}
}
static int create_path(const char *nodepath)
{
char *path;
struct nameidata nd;
int err = 0;
struct vfsmount *dev_mnt = ve_devmnt();
path = kstrdup(nodepath, GFP_KERNEL);
if (!path)
return -ENOMEM;
err = vfs_path_lookup(dev_mnt->mnt_root, dev_mnt,
path, LOOKUP_PARENT, &nd);
if (err == 0) {
struct dentry *dentry;
/* create directory right away */
dentry = lookup_create(&nd, 1);
if (!IS_ERR(dentry)) {
err = vfs_mkdir(nd.path.dentry->d_inode,
dentry, 0755);
dput(dentry);
}
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
path_put(&nd.path);
} else if (err == -ENOENT) {
char *s;
/* parent directories do not exist, create them */
s = path;
while (1) {
s = strchr(s, '/');
if (!s)
break;
s[0] = '\0';
err = dev_mkdir(path, 0755);
if (err && err != -EEXIST)
break;
s[0] = '/';
s++;
}
}
kfree(path);
return err;
}
static int dev_mkdir(const char *name, umode_t mode)
{
struct dentry *dentry;
struct path path;
int err;
dentry = kern_path_create(AT_FDCWD, name, &path, LOOKUP_DIRECTORY);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
err = vfs_mkdir(path.dentry->d_inode, dentry, mode);
if (!err)
/* mark as kernel-created inode */
dentry->d_inode->i_private = &thread;
done_path_create(&path, dentry);
return err;
}
static int mkdir(int argc, char *argv[])
{
if(argc != 2) {
printf("Usage: %s dir\n", argv[0]);
return 1;
}
char *path = vfs_path_mkabsolute(cwd, argv[1]);
errval_t err = vfs_mkdir(path);
free(path);
if (err_is_fail(err)) {
printf("%s\n", err_getstring(err));
return 1;
} else {
return 0;
}
}
int
nfsd4_create_clid_dir(struct nfs4_client *clp)
{
char *dname = clp->cl_recdir;
struct dentry *dentry;
uid_t uid;
gid_t gid;
int status;
dprintk("NFSD: nfsd4_create_clid_dir for \"%s\"\n", dname);
if (!rec_dir_init || clp->cl_firststate)
return 0;
nfs4_save_user(&uid, &gid);
/* lock the parent */
mutex_lock(&rec_dir.path.dentry->d_inode->i_mutex);
dentry = lookup_one_len(dname, rec_dir.path.dentry, HEXDIR_LEN-1);
if (IS_ERR(dentry)) {
status = PTR_ERR(dentry);
goto out_unlock;
}
status = -EEXIST;
if (dentry->d_inode) {
dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
goto out_put;
}
status = mnt_want_write(rec_dir.path.mnt);
if (status)
goto out_put;
status = vfs_mkdir(rec_dir.path.dentry->d_inode, dentry, S_IRWXU);
mnt_drop_write(rec_dir.path.mnt);
out_put:
dput(dentry);
out_unlock:
mutex_unlock(&rec_dir.path.dentry->d_inode->i_mutex);
if (status == 0) {
clp->cl_firststate = 1;
nfsd4_sync_rec_dir();
}
nfs4_reset_user(uid, gid);
dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status);
return status;
}
static int esdfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int err = 0;
struct dentry *lower_dentry;
struct dentry *lower_parent_dentry = NULL;
struct path lower_path;
int mask;
const struct cred *creds =
esdfs_override_creds(ESDFS_SB(dir->i_sb), &mask);
if (!creds)
return -ENOMEM;
esdfs_get_lower_path(dentry, &lower_path);
lower_dentry = lower_path.dentry;
lower_parent_dentry = lock_parent(lower_dentry);
mode |= S_IFDIR;
esdfs_set_lower_mode(ESDFS_SB(dir->i_sb), &mode);
err = mnt_want_write(lower_path.mnt);
if (err)
goto out_unlock;
err = vfs_mkdir(lower_parent_dentry->d_inode, lower_dentry, mode);
if (err)
goto out;
err = esdfs_interpose(dentry, dir->i_sb, &lower_path);
if (err)
goto out;
fsstack_copy_attr_times(dir, esdfs_lower_inode(dir));
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
/* update number of links on parent directory */
set_nlink(dir, esdfs_lower_inode(dir)->i_nlink);
if (ESDFS_DERIVE_PERMS(ESDFS_SB(dir->i_sb)))
err = esdfs_derive_mkdir_contents(dentry);
out:
mnt_drop_write(lower_path.mnt);
out_unlock:
unlock_dir(lower_parent_dentry);
esdfs_put_lower_path(dentry, &lower_path);
esdfs_revert_creds(creds, &mask);
return err;
}
//====================================================================
// Create a directory for this device under the given path. Returns
// 0 on success and non-zero on failure.
static int create_dev_dir(const char *dev_dir_path) {
struct dentry *dentry;
struct path path;
int lookup_flags = LOOKUP_DIRECTORY;
umode_t mode = S_IRUGO | S_IXUGO;
int err;
dentry = kern_path_create(AT_FDCWD, dev_dir_path, &path, lookup_flags);
if (IS_ERR(dentry)) {
return PTR_ERR(dentry);
}
err = security_path_mkdir(&path, dentry, mode);
if (!err) {
err = vfs_mkdir(path.dentry->d_inode, dentry, mode);
}
done_path_create(&path, dentry);
return err;
}
static BOOL ui_dbase_mk_db_dir(void)
{
u16 uni_tmp[16] = {0};
if(file_list_get_partition(&p_partition) > 0)
{
g_partition_letter = p_partition[sys_status_get_usb_work_partition()].letter[0];
uni_tmp[0] = g_partition_letter;
str_asc2uni((u8 *)":\\", uni_tmp + 1);
str_asc2uni((u8 *)IW_DATA_FOLDER_NAME, uni_tmp + 3);
OS_PRINTF("sys_status_get_usb_work_partition(%d)\n",sys_status_get_usb_work_partition());
if(vfs_mkdir(uni_tmp) != SUCCESS)
{
OS_PRINTF("%s, %s dir can't create or exist!\n", __FUNCTION__, "DB_DATA");
}
}
return 0;
}
int sys_mkdir (char *pathname, uint_t mode)
{
register error_t err = 0;
struct task_s *task = current_task;
struct ku_obj ku_path;
KU_BUFF(ku_path, pathname);
rwlock_rdlock(&task->cwd_lock);
if((err = vfs_mkdir(&task->vfs_cwd, &ku_path, mode)))
{
current_thread->info.errno = (err < 0) ? -err : err;
rwlock_unlock(&task->cwd_lock);
return -1;
}
rwlock_unlock(&task->cwd_lock);
return 0;
}
static int dev_mkdir(const char *name, mode_t mode)
{
struct dentry *dentry;
struct path path;
int err;
dentry = kern_path_create(AT_FDCWD, name, &path, 1);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
err = vfs_mkdir(path.dentry->d_inode, dentry, mode);
if (!err)
/* mark as kernel-created inode */
dentry->d_inode->i_private = &thread;
dput(dentry);
mutex_unlock(&path.dentry->d_inode->i_mutex);
path_put(&path);
return err;
}
/*
* scfs_mkdir
*
* Parameters:
* @*dir: inode of the dir to create
* @*scfs_dentry: dentry of the dir to create
* @mode:
*
* Return:
* SCFS_SUCCESS if success, otherwise if error
*
* Description:
* mkdir() for SCFS.
*/
static int scfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
struct dentry *lower_dir_dentry;
struct dentry *lower_parent_dentry;
int ret;
SCFS_DEBUG_START;
lower_dir_dentry = scfs_lower_dentry(dentry);
lower_parent_dentry = lock_parent(lower_dir_dentry);
ret = vfs_mkdir(lower_parent_dentry->d_inode, lower_dir_dentry, mode);
if (ret || !lower_dir_dentry->d_inode) {
SCFS_PRINT_ERROR("dir %s vfs_mkdir failed, "
"lower_dir %s lower_parent %s mode %x\n",
dentry->d_name.name,
lower_dir_dentry->d_name.name,
lower_parent_dentry->d_name.name, mode);
goto out;
}
ret = scfs_interpose(lower_dir_dentry, dentry, dir->i_sb);
if (ret) {
SCFS_PRINT_ERROR("dir %s interpose failed, "
"lower_dir %s lower_parent %s mode %x\n",
dentry->d_name.name,
lower_dir_dentry->d_name.name,
lower_parent_dentry->d_name.name, mode);
vfs_rmdir(lower_parent_dentry->d_inode, lower_dir_dentry);
goto out;
}
fsstack_copy_attr_times(dir, lower_parent_dentry->d_inode);
fsstack_copy_inode_size(dir, lower_parent_dentry->d_inode);
set_nlink(dir, lower_parent_dentry->d_inode->i_nlink);
out:
unlock_dir(lower_parent_dentry);
if (!dentry->d_inode)
d_drop(dentry);
SCFS_DEBUG_END;
return ret;
}
static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int rc;
struct dentry *lower_dentry;
struct dentry *lower_dir_dentry;
lower_dentry = ecryptfs_dentry_to_lower(dentry);
lower_dir_dentry = lock_parent(lower_dentry);
rc = vfs_mkdir(d_inode(lower_dir_dentry), lower_dentry, mode);
if (rc || d_really_is_negative(lower_dentry))
goto out;
rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);
if (rc)
goto out;
fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry));
set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink);
out:
unlock_dir(lower_dir_dentry);
if (d_really_is_negative(dentry))
d_drop(dentry);
return rc;
}
int main(int argc, char *argv[])
{
errval_t err;
// initialization
vfs_init();
bench_init();
// mount nfs
err = vfs_mkdir("/nfs");
assert(err_is_ok(err));
err = vfs_mount("/nfs", "nfs://10.110.4.4/local/nfs");
assert(err_is_ok(err));
// argument processing
if (argc == 3) {
printf("Started vfs_bench in command-line mode\n");
int32_t chunksize = atol(argv[1]);
int32_t repetitions = atol(argv[2]);
single_run(chunksize, repetitions);
} else {
printf("Started vfs_bench.\n");
for (int32_t i = 1; i < 20; i++) {
single_run(4096, i * 2000);
}
}
//err = vfs_unmount("/nfs"); // unmount is NYI
//assert(err_is_ok(err));
err = vfs_rmdir("/nfs");
assert(err_is_ok(err));
return 0;
}
static int
walk_parents_mkdir(
const char **path,
struct nameidata *nd,
int is_dir)
{
char *slash;
char buf[strlen(*path)+1];
int error;
while ((slash = strchr(*path, '/')) != NULL) {
int len = slash - *path;
memcpy(buf, *path, len);
buf[len] = '\0';
error = path_walk(buf, nd);
if (unlikely(error))
return error;
nd->dentry = lookup_create(nd, is_dir);
nd->flags |= LOOKUP_PARENT;
if (IS_ERR(nd->dentry))
return PTR_ERR(nd->dentry);
if (!nd->dentry->d_inode)
error = vfs_mkdir(nd->dentry->d_parent->d_inode,
nd->dentry, 0755);
up(&nd->dentry->d_parent->d_inode->i_sem);
if (unlikely(error))
return error;
*path += len + 1;
}
return 0;
}