Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /* -*- mode: c; c-basic-offset: 8; -*-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * vim: noexpandtab sw=8 ts=8 sts=0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * filecheck.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Code which implements online file check.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Copyright (C) 2016 SuSE.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/kmod.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/kobject.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <cluster/masklog.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include "ocfs2.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include "ocfs2_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include "stackglue.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include "inode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include "filecheck.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) /* File check error strings,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  * must correspond with error number in header file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) static const char * const ocfs2_filecheck_errs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	"SUCCESS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	"FAILED",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	"INPROGRESS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	"READONLY",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	"INJBD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	"INVALIDINO",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	"BLOCKECC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	"BLOCKNO",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	"VALIDFLAG",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	"GENERATION",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	"UNSUPPORTED"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) struct ocfs2_filecheck_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	struct list_head fe_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	unsigned long fe_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	unsigned int fe_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	unsigned int fe_done:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	unsigned int fe_status:31;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) struct ocfs2_filecheck_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	unsigned int fa_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		unsigned long fa_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		unsigned int fa_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) static const char *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) ocfs2_filecheck_error(int errno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	if (!errno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		return ocfs2_filecheck_errs[errno];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	BUG_ON(errno < OCFS2_FILECHECK_ERR_START ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	       errno > OCFS2_FILECHECK_ERR_END);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	return ocfs2_filecheck_errs[errno - OCFS2_FILECHECK_ERR_START + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 					struct kobj_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 					char *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 					struct kobj_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 					const char *buf, size_t count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) static struct kobj_attribute ocfs2_filecheck_attr_chk =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 					__ATTR(check, S_IRUSR | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 					ocfs2_filecheck_attr_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 					ocfs2_filecheck_attr_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) static struct kobj_attribute ocfs2_filecheck_attr_fix =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 					__ATTR(fix, S_IRUSR | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 					ocfs2_filecheck_attr_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 					ocfs2_filecheck_attr_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) static struct kobj_attribute ocfs2_filecheck_attr_set =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 					__ATTR(set, S_IRUSR | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 					ocfs2_filecheck_attr_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 					ocfs2_filecheck_attr_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) static struct attribute *ocfs2_filecheck_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	&ocfs2_filecheck_attr_chk.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	&ocfs2_filecheck_attr_fix.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	&ocfs2_filecheck_attr_set.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static void ocfs2_filecheck_release(struct kobject *kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	struct ocfs2_filecheck_sysfs_entry *entry = container_of(kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 				struct ocfs2_filecheck_sysfs_entry, fs_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	complete(&entry->fs_kobj_unregister);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) ocfs2_filecheck_show(struct kobject *kobj, struct attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	ssize_t ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	struct kobj_attribute *kattr = container_of(attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 					struct kobj_attribute, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	kobject_get(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (kattr->show)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		ret = kattr->show(kobj, kattr, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	kobject_put(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) ocfs2_filecheck_store(struct kobject *kobj, struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 			const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	ssize_t ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	struct kobj_attribute *kattr = container_of(attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 					struct kobj_attribute, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	kobject_get(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	if (kattr->store)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		ret = kattr->store(kobj, kattr, buf, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	kobject_put(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static const struct sysfs_ops ocfs2_filecheck_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	.show = ocfs2_filecheck_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	.store = ocfs2_filecheck_store,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static struct kobj_type ocfs2_ktype_filecheck = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	.default_attrs = ocfs2_filecheck_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	.sysfs_ops = &ocfs2_filecheck_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	.release = ocfs2_filecheck_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) ocfs2_filecheck_sysfs_free(struct ocfs2_filecheck_sysfs_entry *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	struct ocfs2_filecheck_entry *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	spin_lock(&entry->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	while (!list_empty(&entry->fs_fcheck->fc_head)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		p = list_first_entry(&entry->fs_fcheck->fc_head,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 				     struct ocfs2_filecheck_entry, fe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		list_del(&p->fe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		BUG_ON(!p->fe_done); /* To free a undone file check entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	spin_unlock(&entry->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	kfree(entry->fs_fcheck);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	entry->fs_fcheck = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct ocfs2_filecheck *fcheck;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct ocfs2_filecheck_sysfs_entry *entry = &osb->osb_fc_ent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	fcheck = kmalloc(sizeof(struct ocfs2_filecheck), GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	if (!fcheck)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	INIT_LIST_HEAD(&fcheck->fc_head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	spin_lock_init(&fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	fcheck->fc_max = OCFS2_FILECHECK_MINSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	fcheck->fc_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	fcheck->fc_done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	entry->fs_kobj.kset = osb->osb_dev_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	init_completion(&entry->fs_kobj_unregister);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	ret = kobject_init_and_add(&entry->fs_kobj, &ocfs2_ktype_filecheck,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 					NULL, "filecheck");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		kobject_put(&entry->fs_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		kfree(fcheck);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	entry->fs_fcheck = fcheck;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	if (!osb->osb_fc_ent.fs_fcheck)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	kobject_del(&osb->osb_fc_ent.fs_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	kobject_put(&osb->osb_fc_ent.fs_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	wait_for_completion(&osb->osb_fc_ent.fs_kobj_unregister);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	ocfs2_filecheck_sysfs_free(&osb->osb_fc_ent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) ocfs2_filecheck_erase_entries(struct ocfs2_filecheck_sysfs_entry *ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			      unsigned int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) ocfs2_filecheck_adjust_max(struct ocfs2_filecheck_sysfs_entry *ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 			   unsigned int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	if ((len < OCFS2_FILECHECK_MINSIZE) || (len > OCFS2_FILECHECK_MAXSIZE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	spin_lock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (len < (ent->fs_fcheck->fc_size - ent->fs_fcheck->fc_done)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		mlog(ML_NOTICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		"Cannot set online file check maximum entry number "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		"to %u due to too many pending entries(%u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		len, ent->fs_fcheck->fc_size - ent->fs_fcheck->fc_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		ret = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		if (len < ent->fs_fcheck->fc_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			BUG_ON(!ocfs2_filecheck_erase_entries(ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 				ent->fs_fcheck->fc_size - len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		ent->fs_fcheck->fc_max = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	spin_unlock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) #define OCFS2_FILECHECK_ARGS_LEN	24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) ocfs2_filecheck_args_get_long(const char *buf, size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 			      unsigned long *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	char buffer[OCFS2_FILECHECK_ARGS_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	memcpy(buffer, buf, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	buffer[count] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	if (kstrtoul(buffer, 0, val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) ocfs2_filecheck_type_parse(const char *name, unsigned int *type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	if (!strncmp(name, "fix", 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		*type = OCFS2_FILECHECK_TYPE_FIX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	else if (!strncmp(name, "check", 6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		*type = OCFS2_FILECHECK_TYPE_CHK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	else if (!strncmp(name, "set", 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		*type = OCFS2_FILECHECK_TYPE_SET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) ocfs2_filecheck_args_parse(const char *name, const char *buf, size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 			   struct ocfs2_filecheck_args *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	unsigned long val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	unsigned int type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	/* too short/long args length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	if ((count < 1) || (count >= OCFS2_FILECHECK_ARGS_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	if (ocfs2_filecheck_type_parse(name, &type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	if (ocfs2_filecheck_args_get_long(buf, count, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	if (val <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	args->fa_type = type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	if (type == OCFS2_FILECHECK_TYPE_SET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		args->fa_len = (unsigned int)val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		args->fa_ino = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 				    struct kobj_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 				    char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	ssize_t ret = 0, total = 0, remain = PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	unsigned int type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	struct ocfs2_filecheck_entry *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	struct ocfs2_filecheck_sysfs_entry *ent = container_of(kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 				struct ocfs2_filecheck_sysfs_entry, fs_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	if (ocfs2_filecheck_type_parse(attr->attr.name, &type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	if (type == OCFS2_FILECHECK_TYPE_SET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		spin_lock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		total = snprintf(buf, remain, "%u\n", ent->fs_fcheck->fc_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		spin_unlock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	ret = snprintf(buf, remain, "INO\t\tDONE\tERROR\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	total += ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	remain -= ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	spin_lock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	list_for_each_entry(p, &ent->fs_fcheck->fc_head, fe_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		if (p->fe_type != type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 		ret = snprintf(buf + total, remain, "%lu\t\t%u\t%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 			       p->fe_ino, p->fe_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 			       ocfs2_filecheck_error(p->fe_status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		if (ret >= remain) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 			/* snprintf() didn't fit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 			total = -E2BIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 		total += ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		remain -= ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	spin_unlock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	return total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) ocfs2_filecheck_is_dup_entry(struct ocfs2_filecheck_sysfs_entry *ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 				unsigned long ino)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	struct ocfs2_filecheck_entry *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	list_for_each_entry(p, &ent->fs_fcheck->fc_head, fe_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		if (!p->fe_done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 			if (p->fe_ino == ino)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 				return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) ocfs2_filecheck_erase_entry(struct ocfs2_filecheck_sysfs_entry *ent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	struct ocfs2_filecheck_entry *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	list_for_each_entry(p, &ent->fs_fcheck->fc_head, fe_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 		if (p->fe_done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 			list_del(&p->fe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 			kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 			ent->fs_fcheck->fc_size--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 			ent->fs_fcheck->fc_done--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 			return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) ocfs2_filecheck_erase_entries(struct ocfs2_filecheck_sysfs_entry *ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 			      unsigned int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	unsigned int i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 	unsigned int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	while (i++ < count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 		if (ocfs2_filecheck_erase_entry(ent))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 			ret++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	return (ret == count ? 1 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) ocfs2_filecheck_done_entry(struct ocfs2_filecheck_sysfs_entry *ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 			   struct ocfs2_filecheck_entry *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 	spin_lock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	entry->fe_done = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	ent->fs_fcheck->fc_done++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	spin_unlock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static unsigned int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) ocfs2_filecheck_handle(struct ocfs2_super *osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 		       unsigned long ino, unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	unsigned int ret = OCFS2_FILECHECK_ERR_SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	struct inode *inode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	inode = ocfs2_iget(osb, ino, flags, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 	if (IS_ERR(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 		rc = (int)(-(long)inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 		if (rc >= OCFS2_FILECHECK_ERR_START &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 		    rc < OCFS2_FILECHECK_ERR_END)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 			ret = rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 			ret = OCFS2_FILECHECK_ERR_FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 		iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) ocfs2_filecheck_handle_entry(struct ocfs2_filecheck_sysfs_entry *ent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 			     struct ocfs2_filecheck_entry *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	struct ocfs2_super *osb = container_of(ent, struct ocfs2_super,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 						osb_fc_ent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 	if (entry->fe_type == OCFS2_FILECHECK_TYPE_CHK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 		entry->fe_status = ocfs2_filecheck_handle(osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 				entry->fe_ino, OCFS2_FI_FLAG_FILECHECK_CHK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 	else if (entry->fe_type == OCFS2_FILECHECK_TYPE_FIX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 		entry->fe_status = ocfs2_filecheck_handle(osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 				entry->fe_ino, OCFS2_FI_FLAG_FILECHECK_FIX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 		entry->fe_status = OCFS2_FILECHECK_ERR_UNSUPPORTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	ocfs2_filecheck_done_entry(ent, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 				     struct kobj_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 				     const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 	ssize_t ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 	struct ocfs2_filecheck_args args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 	struct ocfs2_filecheck_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 	struct ocfs2_filecheck_sysfs_entry *ent = container_of(kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 				struct ocfs2_filecheck_sysfs_entry, fs_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	if (count == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 		return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 	if (ocfs2_filecheck_args_parse(attr->attr.name, buf, count, &args))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 	if (args.fa_type == OCFS2_FILECHECK_TYPE_SET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 		ret = ocfs2_filecheck_adjust_max(ent, args.fa_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 	entry = kmalloc(sizeof(struct ocfs2_filecheck_entry), GFP_NOFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 	if (!entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 		ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 	spin_lock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 	if (ocfs2_filecheck_is_dup_entry(ent, args.fa_ino)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 		ret = -EEXIST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 		kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 	} else if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 		(ent->fs_fcheck->fc_done == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 		mlog(ML_NOTICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 		"Cannot do more file check "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 		"since file check queue(%u) is full now\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 		ent->fs_fcheck->fc_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 		ret = -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 		kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 		if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 		    (ent->fs_fcheck->fc_done > 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 			/* Delete the oldest entry which was done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 			 * make sure the entry size in list does
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 			 * not exceed maximum value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 			BUG_ON(!ocfs2_filecheck_erase_entry(ent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 		entry->fe_ino = args.fa_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 		entry->fe_type = args.fa_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 		entry->fe_done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 		entry->fe_status = OCFS2_FILECHECK_ERR_INPROGRESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 		list_add_tail(&entry->fe_list, &ent->fs_fcheck->fc_head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 		ent->fs_fcheck->fc_size++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) 	spin_unlock(&ent->fs_fcheck->fc_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 	if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 		ocfs2_filecheck_handle_entry(ent, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 	return (!ret ? count : ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) }