Gang He
2016-Dec-19 09:21 UTC
[Ocfs2-devel] [PATCH 0/2] ocfs2: use kobject for online file check
Use embedded kobject mechanism for online file check feature, this will avoid to use a global list to save/search per-device online file check related data. The changed code is based on Goldwyn Rodrigues's patches and ext4 fs code, there is not any new features added, except some very small fixes during this code refactoring. Second, the code change does not affect the underlying file check code. Thank Goldwyn very much. Gang He (2): ocfs2: add kobject for online file check ocfs2: embed kobject in ocfs2_super structure fs/ocfs2/filecheck.c | 360 ++++++++++++++++++++------------------------------- fs/ocfs2/filecheck.h | 29 ++++- fs/ocfs2/ocfs2.h | 8 ++ fs/ocfs2/super.c | 27 +++- 4 files changed, 196 insertions(+), 228 deletions(-) -- 1.8.5.6
Gang He
2016-Dec-19 09:21 UTC
[Ocfs2-devel] [PATCH 1/2] ocfs2: add kobject for online file check
Use embedded kobject mechanism for online file check feature,
this will avoid to use a global list to save/search per-device online file
check related data. The changed code is based on Goldwyn Rodrigues's
patches and ext4 fs code.
Second, some small adjustment/fixes are also included.
1) move some data structure definitions to the header file;
2) tune mlog message level from ERROR to NOTICE;
3) add file check duplicative ino number check;
4) the other miscellaneous.
Signed-off-by: Gang He <ghe at suse.com>
---
fs/ocfs2/filecheck.c | 360 ++++++++++++++++++++-------------------------------
fs/ocfs2/filecheck.h | 29 ++++-
2 files changed, 165 insertions(+), 224 deletions(-)
diff --git a/fs/ocfs2/filecheck.c b/fs/ocfs2/filecheck.c
index 2cabbcf..5a6ae70 100644
--- a/fs/ocfs2/filecheck.c
+++ b/fs/ocfs2/filecheck.c
@@ -53,36 +53,6 @@
"UNSUPPORTED"
};
-static DEFINE_SPINLOCK(ocfs2_filecheck_sysfs_lock);
-static LIST_HEAD(ocfs2_filecheck_sysfs_list);
-
-struct ocfs2_filecheck {
- struct list_head fc_head; /* File check entry list head */
- spinlock_t fc_lock;
- unsigned int fc_max; /* Maximum number of entry in list */
- unsigned int fc_size; /* Current entry count in list */
- unsigned int fc_done; /* Finished entry count in list */
-};
-
-struct ocfs2_filecheck_sysfs_entry { /* sysfs entry per mounting */
- struct list_head fs_list;
- atomic_t fs_count;
- struct super_block *fs_sb;
- struct kset *fs_devicekset;
- struct kset *fs_fcheckkset;
- struct ocfs2_filecheck *fs_fcheck;
-};
-
-#define OCFS2_FILECHECK_MAXSIZE 100
-#define OCFS2_FILECHECK_MINSIZE 10
-
-/* File check operation type */
-enum {
- OCFS2_FILECHECK_TYPE_CHK = 0, /* Check a file(inode) */
- OCFS2_FILECHECK_TYPE_FIX, /* Fix a file(inode) */
- OCFS2_FILECHECK_TYPE_SET = 100 /* Set entry list maximum size */
-};
-
struct ocfs2_filecheck_entry {
struct list_head fe_list;
unsigned long fe_ino;
@@ -110,40 +80,84 @@ struct ocfs2_filecheck_args {
return ocfs2_filecheck_errs[errno - OCFS2_FILECHECK_ERR_START + 1];
}
-static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
- struct kobj_attribute *attr,
- char *buf);
-static ssize_t ocfs2_filecheck_store(struct kobject *kobj,
- struct kobj_attribute *attr,
- const char *buf, size_t count);
-static struct kobj_attribute ocfs2_attr_filecheck_chk +static ssize_t
ocfs2_filecheck_attr_show(struct kobject *kobj,
+ struct kobj_attribute *attr,
+ char *buf);
+static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
+ struct kobj_attribute *attr,
+ const char *buf, size_t count);
+static struct kobj_attribute ocfs2_filecheck_attr_chk __ATTR(check,
S_IRUSR | S_IWUSR,
- ocfs2_filecheck_show,
- ocfs2_filecheck_store);
-static struct kobj_attribute ocfs2_attr_filecheck_fix +
ocfs2_filecheck_attr_show,
+ ocfs2_filecheck_attr_store);
+static struct kobj_attribute ocfs2_filecheck_attr_fix __ATTR(fix, S_IRUSR
| S_IWUSR,
- ocfs2_filecheck_show,
- ocfs2_filecheck_store);
-static struct kobj_attribute ocfs2_attr_filecheck_set +
ocfs2_filecheck_attr_show,
+ ocfs2_filecheck_attr_store);
+static struct kobj_attribute ocfs2_filecheck_attr_set __ATTR(set, S_IRUSR
| S_IWUSR,
- ocfs2_filecheck_show,
- ocfs2_filecheck_store);
+ ocfs2_filecheck_attr_show,
+ ocfs2_filecheck_attr_store);
+static struct attribute *ocfs2_filecheck_attrs[] = {
+ &ocfs2_filecheck_attr_chk.attr,
+ &ocfs2_filecheck_attr_fix.attr,
+ &ocfs2_filecheck_attr_set.attr,
+ NULL
+};
-static int ocfs2_filecheck_sysfs_wait(atomic_t *p)
+static void ocfs2_filecheck_release(struct kobject *kobj)
{
- schedule();
- return 0;
+ struct ocfs2_filecheck_sysfs_entry *entry = container_of(kobj,
+ struct ocfs2_filecheck_sysfs_entry, fs_kobj);
+
+ complete(&entry->fs_kobj_unregister);
}
+static ssize_t
+ocfs2_filecheck_show(struct kobject *kobj, struct attribute *attr, char *buf)
+{
+ ssize_t ret = -EIO;
+ struct kobj_attribute *kattr = container_of(attr,
+ struct kobj_attribute, attr);
+
+ kobject_get(kobj);
+ if (kattr->show)
+ ret = kattr->show(kobj, kattr, buf);
+ kobject_put(kobj);
+ return ret;
+}
+
+static ssize_t
+ocfs2_filecheck_store(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t count)
+{
+ ssize_t ret = -EIO;
+ struct kobj_attribute *kattr = container_of(attr,
+ struct kobj_attribute, attr);
+
+ kobject_get(kobj);
+ if (kattr->store)
+ ret = kattr->store(kobj, kattr, buf, count);
+ kobject_put(kobj);
+ return ret;
+}
+
+static const struct sysfs_ops ocfs2_filecheck_ops = {
+ .show = ocfs2_filecheck_show,
+ .store = ocfs2_filecheck_store,
+};
+
+static struct kobj_type ocfs2_ktype_filecheck = {
+ .default_attrs = ocfs2_filecheck_attrs,
+ .sysfs_ops = &ocfs2_filecheck_ops,
+ .release = ocfs2_filecheck_release,
+};
+
static void
ocfs2_filecheck_sysfs_free(struct ocfs2_filecheck_sysfs_entry *entry)
{
struct ocfs2_filecheck_entry *p;
- if (!atomic_dec_and_test(&entry->fs_count))
- wait_on_atomic_t(&entry->fs_count, ocfs2_filecheck_sysfs_wait,
- TASK_UNINTERRUPTIBLE);
-
spin_lock(&entry->fs_fcheck->fc_lock);
while (!list_empty(&entry->fs_fcheck->fc_head)) {
p = list_first_entry(&entry->fs_fcheck->fc_head,
@@ -154,151 +168,48 @@ static int ocfs2_filecheck_sysfs_wait(atomic_t *p)
}
spin_unlock(&entry->fs_fcheck->fc_lock);
- kset_unregister(entry->fs_fcheckkset);
- kset_unregister(entry->fs_devicekset);
kfree(entry->fs_fcheck);
- kfree(entry);
-}
-
-static void
-ocfs2_filecheck_sysfs_add(struct ocfs2_filecheck_sysfs_entry *entry)
-{
- spin_lock(&ocfs2_filecheck_sysfs_lock);
- list_add_tail(&entry->fs_list, &ocfs2_filecheck_sysfs_list);
- spin_unlock(&ocfs2_filecheck_sysfs_lock);
+ entry->fs_fcheck = NULL;
}
-static int ocfs2_filecheck_sysfs_del(const char *devname)
-{
- struct ocfs2_filecheck_sysfs_entry *p;
-
- spin_lock(&ocfs2_filecheck_sysfs_lock);
- list_for_each_entry(p, &ocfs2_filecheck_sysfs_list, fs_list) {
- if (!strcmp(p->fs_sb->s_id, devname)) {
- list_del(&p->fs_list);
- spin_unlock(&ocfs2_filecheck_sysfs_lock);
- ocfs2_filecheck_sysfs_free(p);
- return 0;
- }
- }
- spin_unlock(&ocfs2_filecheck_sysfs_lock);
- return 1;
-}
-
-static void
-ocfs2_filecheck_sysfs_put(struct ocfs2_filecheck_sysfs_entry *entry)
+int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb)
{
- if (atomic_dec_and_test(&entry->fs_count))
- wake_up_atomic_t(&entry->fs_count);
-}
-
-static struct ocfs2_filecheck_sysfs_entry *
-ocfs2_filecheck_sysfs_get(const char *devname)
-{
- struct ocfs2_filecheck_sysfs_entry *p = NULL;
-
- spin_lock(&ocfs2_filecheck_sysfs_lock);
- list_for_each_entry(p, &ocfs2_filecheck_sysfs_list, fs_list) {
- if (!strcmp(p->fs_sb->s_id, devname)) {
- atomic_inc(&p->fs_count);
- spin_unlock(&ocfs2_filecheck_sysfs_lock);
- return p;
- }
- }
- spin_unlock(&ocfs2_filecheck_sysfs_lock);
- return NULL;
-}
-
-int ocfs2_filecheck_create_sysfs(struct super_block *sb)
-{
- int ret = 0;
- struct kset *device_kset = NULL;
- struct kset *fcheck_kset = NULL;
- struct ocfs2_filecheck *fcheck = NULL;
- struct ocfs2_filecheck_sysfs_entry *entry = NULL;
- struct attribute **attrs = NULL;
- struct attribute_group attrgp;
-
- if (!ocfs2_kset)
- return -ENOMEM;
-
- attrs = kmalloc(sizeof(struct attribute *) * 4, GFP_NOFS);
- if (!attrs) {
- ret = -ENOMEM;
- goto error;
- } else {
- attrs[0] = &ocfs2_attr_filecheck_chk.attr;
- attrs[1] = &ocfs2_attr_filecheck_fix.attr;
- attrs[2] = &ocfs2_attr_filecheck_set.attr;
- attrs[3] = NULL;
- memset(&attrgp, 0, sizeof(attrgp));
- attrgp.attrs = attrs;
- }
+ int ret;
+ struct ocfs2_filecheck *fcheck;
+ struct ocfs2_filecheck_sysfs_entry *entry = &osb->osb_fc_ent;
fcheck = kmalloc(sizeof(struct ocfs2_filecheck), GFP_NOFS);
- if (!fcheck) {
- ret = -ENOMEM;
- goto error;
- } else {
- INIT_LIST_HEAD(&fcheck->fc_head);
- spin_lock_init(&fcheck->fc_lock);
- fcheck->fc_max = OCFS2_FILECHECK_MINSIZE;
- fcheck->fc_size = 0;
- fcheck->fc_done = 0;
- }
-
- if (strlen(sb->s_id) <= 0) {
- mlog(ML_ERROR,
- "Cannot get device basename when create filecheck sysfs\n");
- ret = -ENODEV;
- goto error;
- }
-
- device_kset = kset_create_and_add(sb->s_id, NULL,
&ocfs2_kset->kobj);
- if (!device_kset) {
- ret = -ENOMEM;
- goto error;
- }
-
- fcheck_kset = kset_create_and_add("filecheck", NULL,
- &device_kset->kobj);
- if (!fcheck_kset) {
- ret = -ENOMEM;
- goto error;
- }
-
- ret = sysfs_create_group(&fcheck_kset->kobj, &attrgp);
- if (ret)
- goto error;
+ if (!fcheck)
+ return -ENOMEM;
- entry = kmalloc(sizeof(struct ocfs2_filecheck_sysfs_entry), GFP_NOFS);
- if (!entry) {
- ret = -ENOMEM;
- goto error;
- } else {
- atomic_set(&entry->fs_count, 1);
- entry->fs_sb = sb;
- entry->fs_devicekset = device_kset;
- entry->fs_fcheckkset = fcheck_kset;
- entry->fs_fcheck = fcheck;
- ocfs2_filecheck_sysfs_add(entry);
+ INIT_LIST_HEAD(&fcheck->fc_head);
+ spin_lock_init(&fcheck->fc_lock);
+ fcheck->fc_max = OCFS2_FILECHECK_MINSIZE;
+ fcheck->fc_size = 0;
+ fcheck->fc_done = 0;
+
+ entry->fs_kobj.kset = osb->osb_dev_kset;
+ init_completion(&entry->fs_kobj_unregister);
+ ret = kobject_init_and_add(&entry->fs_kobj, &ocfs2_ktype_filecheck,
+ NULL, "filecheck");
+ if (ret) {
+ kfree(fcheck);
+ return ret;
}
- kfree(attrs);
+ entry->fs_fcheck = fcheck;
return 0;
-
-error:
- kfree(attrs);
- kfree(entry);
- kfree(fcheck);
- kset_unregister(fcheck_kset);
- kset_unregister(device_kset);
- return ret;
}
-int ocfs2_filecheck_remove_sysfs(struct super_block *sb)
+void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb)
{
- return ocfs2_filecheck_sysfs_del(sb->s_id);
+ if (!osb->osb_fc_ent.fs_fcheck)
+ return;
+
+ kobject_del(&osb->osb_fc_ent.fs_kobj);
+ kobject_put(&osb->osb_fc_ent.fs_kobj);
+ wait_for_completion(&osb->osb_fc_ent.fs_kobj_unregister);
+ ocfs2_filecheck_sysfs_free(&osb->osb_fc_ent);
}
static int
@@ -315,7 +226,7 @@ int ocfs2_filecheck_remove_sysfs(struct super_block *sb)
spin_lock(&ent->fs_fcheck->fc_lock);
if (len < (ent->fs_fcheck->fc_size - ent->fs_fcheck->fc_done))
{
- mlog(ML_ERROR,
+ mlog(ML_NOTICE,
"Cannot set online file check maximum entry number "
"to %u due to too many pending entries(%u)\n",
len, ent->fs_fcheck->fc_size - ent->fs_fcheck->fc_done);
@@ -392,7 +303,7 @@ int ocfs2_filecheck_remove_sysfs(struct super_block *sb)
return 0;
}
-static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
+static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *buf)
{
@@ -400,19 +311,12 @@ static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
ssize_t ret = 0, total = 0, remain = PAGE_SIZE;
unsigned int type;
struct ocfs2_filecheck_entry *p;
- struct ocfs2_filecheck_sysfs_entry *ent;
+ struct ocfs2_filecheck_sysfs_entry *ent = container_of(kobj,
+ struct ocfs2_filecheck_sysfs_entry, fs_kobj);
if (ocfs2_filecheck_type_parse(attr->attr.name, &type))
return -EINVAL;
- ent = ocfs2_filecheck_sysfs_get(kobj->parent->name);
- if (!ent) {
- mlog(ML_ERROR,
- "Cannot get the corresponding entry via device basename %s\n",
- kobj->name);
- return -ENODEV;
- }
-
if (type == OCFS2_FILECHECK_TYPE_SET) {
spin_lock(&ent->fs_fcheck->fc_lock);
total = snprintf(buf, remain, "%u\n",
ent->fs_fcheck->fc_max);
@@ -446,11 +350,27 @@ static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
spin_unlock(&ent->fs_fcheck->fc_lock);
exit:
- ocfs2_filecheck_sysfs_put(ent);
return total;
}
-static int
+
+static inline int
+ocfs2_filecheck_is_dup_entry(struct ocfs2_filecheck_sysfs_entry *ent,
+ unsigned long ino)
+{
+ struct ocfs2_filecheck_entry *p;
+
+ list_for_each_entry(p, &ent->fs_fcheck->fc_head, fe_list) {
+ if (!p->fe_done) {
+ if (p->fe_ino == ino)
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static inline int
ocfs2_filecheck_erase_entry(struct ocfs2_filecheck_sysfs_entry *ent)
{
struct ocfs2_filecheck_entry *p;
@@ -489,21 +409,21 @@ static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
ocfs2_filecheck_done_entry(struct ocfs2_filecheck_sysfs_entry *ent,
struct ocfs2_filecheck_entry *entry)
{
- entry->fe_done = 1;
spin_lock(&ent->fs_fcheck->fc_lock);
+ entry->fe_done = 1;
ent->fs_fcheck->fc_done++;
spin_unlock(&ent->fs_fcheck->fc_lock);
}
static unsigned int
-ocfs2_filecheck_handle(struct super_block *sb,
+ocfs2_filecheck_handle(struct ocfs2_super *osb,
unsigned long ino, unsigned int flags)
{
unsigned int ret = OCFS2_FILECHECK_ERR_SUCCESS;
struct inode *inode = NULL;
int rc;
- inode = ocfs2_iget(OCFS2_SB(sb), ino, flags, 0);
+ inode = ocfs2_iget(osb, ino, flags, 0);
if (IS_ERR(inode)) {
rc = (int)(-(long)inode);
if (rc >= OCFS2_FILECHECK_ERR_START &&
@@ -521,11 +441,14 @@ static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
ocfs2_filecheck_handle_entry(struct ocfs2_filecheck_sysfs_entry *ent,
struct ocfs2_filecheck_entry *entry)
{
+ struct ocfs2_super *osb = container_of(ent, struct ocfs2_super,
+ osb_fc_ent);
+
if (entry->fe_type == OCFS2_FILECHECK_TYPE_CHK)
- entry->fe_status = ocfs2_filecheck_handle(ent->fs_sb,
+ entry->fe_status = ocfs2_filecheck_handle(osb,
entry->fe_ino, OCFS2_FI_FLAG_FILECHECK_CHK);
else if (entry->fe_type == OCFS2_FILECHECK_TYPE_FIX)
- entry->fe_status = ocfs2_filecheck_handle(ent->fs_sb,
+ entry->fe_status = ocfs2_filecheck_handle(osb,
entry->fe_ino, OCFS2_FI_FLAG_FILECHECK_FIX);
else
entry->fe_status = OCFS2_FILECHECK_ERR_UNSUPPORTED;
@@ -533,30 +456,21 @@ static ssize_t ocfs2_filecheck_show(struct kobject *kobj,
ocfs2_filecheck_done_entry(ent, entry);
}
-static ssize_t ocfs2_filecheck_store(struct kobject *kobj,
+static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
+ ssize_t ret = 0;
struct ocfs2_filecheck_args args;
struct ocfs2_filecheck_entry *entry;
- struct ocfs2_filecheck_sysfs_entry *ent;
- ssize_t ret = 0;
+ struct ocfs2_filecheck_sysfs_entry *ent = container_of(kobj,
+ struct ocfs2_filecheck_sysfs_entry, fs_kobj);
if (count == 0)
- return count;
+ return 0; /* nothing to do */
- if (ocfs2_filecheck_args_parse(attr->attr.name, buf, count, &args)) {
- mlog(ML_ERROR, "Invalid arguments for online file check\n");
+ if (ocfs2_filecheck_args_parse(attr->attr.name, buf, count, &args))
return -EINVAL;
- }
-
- ent = ocfs2_filecheck_sysfs_get(kobj->parent->name);
- if (!ent) {
- mlog(ML_ERROR,
- "Cannot get the corresponding entry via device basename %s\n",
- kobj->parent->name);
- return -ENODEV;
- }
if (args.fa_type == OCFS2_FILECHECK_TYPE_SET) {
ret = ocfs2_filecheck_adjust_max(ent, args.fa_len);
@@ -570,13 +484,16 @@ static ssize_t ocfs2_filecheck_store(struct kobject *kobj,
}
spin_lock(&ent->fs_fcheck->fc_lock);
- if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max)
&&
- (ent->fs_fcheck->fc_done == 0)) {
- mlog(ML_ERROR,
+ if (ocfs2_filecheck_is_dup_entry(ent, args.fa_ino)) {
+ ret = -EEXIST;
+ kfree(entry);
+ } else if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max)
&&
+ (ent->fs_fcheck->fc_done == 0)) {
+ mlog(ML_NOTICE,
"Cannot do more file check "
"since file check queue(%u) is full now\n",
ent->fs_fcheck->fc_max);
- ret = -EBUSY;
+ ret = -EAGAIN;
kfree(entry);
} else {
if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max)
&&
@@ -601,6 +518,5 @@ static ssize_t ocfs2_filecheck_store(struct kobject *kobj,
ocfs2_filecheck_handle_entry(ent, entry);
exit:
- ocfs2_filecheck_sysfs_put(ent);
return (!ret ? count : ret);
}
diff --git a/fs/ocfs2/filecheck.h b/fs/ocfs2/filecheck.h
index e5cd002..6a22ee7 100644
--- a/fs/ocfs2/filecheck.h
+++ b/fs/ocfs2/filecheck.h
@@ -43,7 +43,32 @@ enum {
#define OCFS2_FILECHECK_ERR_START OCFS2_FILECHECK_ERR_FAILED
#define OCFS2_FILECHECK_ERR_END OCFS2_FILECHECK_ERR_UNSUPPORTED
-int ocfs2_filecheck_create_sysfs(struct super_block *sb);
-int ocfs2_filecheck_remove_sysfs(struct super_block *sb);
+struct ocfs2_filecheck {
+ struct list_head fc_head; /* File check entry list head */
+ spinlock_t fc_lock;
+ unsigned int fc_max; /* Maximum number of entry in list */
+ unsigned int fc_size; /* Current entry count in list */
+ unsigned int fc_done; /* Finished entry count in list */
+};
+
+#define OCFS2_FILECHECK_MAXSIZE 100
+#define OCFS2_FILECHECK_MINSIZE 10
+
+/* File check operation type */
+enum {
+ OCFS2_FILECHECK_TYPE_CHK = 0, /* Check a file(inode) */
+ OCFS2_FILECHECK_TYPE_FIX, /* Fix a file(inode) */
+ OCFS2_FILECHECK_TYPE_SET = 100 /* Set entry list maximum size */
+};
+
+struct ocfs2_filecheck_sysfs_entry { /* sysfs entry per partition */
+ struct kobject fs_kobj;
+ struct completion fs_kobj_unregister;
+ struct ocfs2_filecheck *fs_fcheck;
+};
+
+
+int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb);
+void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb);
#endif /* FILECHECK_H */
--
1.8.5.6
Gang He
2016-Dec-19 09:21 UTC
[Ocfs2-devel] [PATCH 2/2] ocfs2: embed kobject in ocfs2_super structure
Embed kobject in ocfs2_super structure, then we can use container_of
method to get our own data pointor via kobject pointer. Second, I adjust
the related code in create/remove online file check sysfs entry.
Signed-off-by: Gang He <ghe at suse.com>
---
fs/ocfs2/ocfs2.h | 8 ++++++++
fs/ocfs2/super.c | 27 +++++++++++++++++++++++----
2 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index e63af7d..b00c983 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -50,6 +50,8 @@
#include "reservations.h"
+#include "filecheck.h"
+
/* Caching of metadata buffers */
/* Most user visible OCFS2 inodes will have very few pieces of
@@ -472,6 +474,12 @@ struct ocfs2_super
* workqueue and schedule on our own.
*/
struct workqueue_struct *ocfs2_wq;
+
+ /* sysfs directory per partition */
+ struct kset *osb_dev_kset;
+
+ /* file check related stuff */
+ struct ocfs2_filecheck_sysfs_entry osb_fc_ent;
};
#define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index f56fe39..9ab3467 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1162,6 +1162,23 @@ static int ocfs2_fill_super(struct super_block *sb, void
*data, int silent)
ocfs2_complete_mount_recovery(osb);
+ osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL,
+ &ocfs2_kset->kobj);
+ if (!osb->osb_dev_kset) {
+ status = -ENOMEM;
+ mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id);
+ goto read_super_error;
+ }
+
+ /* Create filecheck sysfs related directories/files at
+ * /sys/fs/ocfs2/<devname>/filecheck */
+ if (ocfs2_filecheck_create_sysfs(osb)) {
+ status = -ENOMEM;
+ mlog(ML_ERROR, "Unable to create filecheck sysfs directory at "
+ "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id);
+ goto read_super_error;
+ }
+
if (ocfs2_mount_local(osb))
snprintf(nodestr, sizeof(nodestr), "local");
else
@@ -1200,9 +1217,6 @@ static int ocfs2_fill_super(struct super_block *sb, void
*data, int silent)
/* Start this when the mount is almost sure of being successful */
ocfs2_orphan_scan_start(osb);
- /* Create filecheck sysfile /sys/fs/ocfs2/<devname>/filecheck */
- ocfs2_filecheck_create_sysfs(sb);
-
return status;
read_super_error:
@@ -1653,7 +1667,6 @@ static void ocfs2_put_super(struct super_block *sb)
ocfs2_sync_blockdev(sb);
ocfs2_dismount_volume(sb, 0);
- ocfs2_filecheck_remove_sysfs(sb);
}
static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -1896,6 +1909,12 @@ static void ocfs2_dismount_volume(struct super_block *sb,
int mnt_err)
osb = OCFS2_SB(sb);
BUG_ON(!osb);
+ /* Remove file check sysfs related directores/files,
+ * and wait for the pending file check operations */
+ ocfs2_filecheck_remove_sysfs(osb);
+
+ kset_unregister(osb->osb_dev_kset);
+
debugfs_remove(osb->osb_ctxt);
/* Orphan scan should be stopped as early as possible */
--
1.8.5.6