yystopf/openharmony_kernel_liteos_a
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feat: page cache backed by vnode instead of filep

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1, change the owner of page to vnode
2, save the file path in vnode

close: #I44TBS
Signed-off-by: Leon Chan <chenwei26@huawei.com>
This commit is contained in:
Leon Chan
2021-08-05 19:53:57 +08:00
parent ba977dd5ab
commit 38a6b804e9
18 changed files with 446 additions and 544 deletions
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29
kernel/common/console.c
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@@ -1044,39 +1044,24 @@ STATIC INT32 OsConsoleFileInit(CONSOLE_CB *consoleCB)
INT32 ret;
struct Vnode *vnode = NULL;
struct file *filep = NULL;
CHAR *fullpath = NULL;
ret = vfs_normalize_path(NULL, consoleCB->name, &fullpath);
if (ret < 0) {
return EINVAL;
}
VnodeHold();
ret = VnodeLookup(fullpath, &vnode, 0);
ret = VnodeLookup(consoleCB->name, &vnode, 0);
if (ret != LOS_OK) {
ret = EACCES;
goto ERROUT_WITH_FULLPATH;
goto ERROUT;
}
consoleCB->fd = files_allocate(vnode, O_RDWR, (off_t)0, consoleCB, STDERR_FILENO + 1);
if (consoleCB->fd < 0) {
filep = files_allocate(vnode, O_RDWR, 0, consoleCB, FILE_START_FD);
if (filep == NULL) {
ret = EMFILE;
goto ERROUT_WITH_FULLPATH;
goto ERROUT;
}
ret = fs_getfilep(consoleCB->fd, &filep);
if (ret < 0) {
ret = EPERM;
goto ERROUT_WITH_FULLPATH;
}
filep->f_path = fullpath;
filep->ops = (struct file_operations_vfs *)((struct drv_data *)vnode->data)->ops;
VnodeDrop();
return LOS_OK;
consoleCB->fd = filep->fd;
ERROUT_WITH_FULLPATH:
ERROUT:
VnodeDrop();
free(fullpath);
return ret;
}