From: Oleg Drokin <gr...@linuxhacker.ru>
Move just first few files from /proc/fs/lustre/llite/*/
to /sys/fs/lustre/llite/*/:
blocksize filesfree fstype kbytesfree max_read_ahead_mb
client_type filestotal kbytesavail kbytestotal uuid
More to follow.
Signed-off-by: Oleg Drokin <gr...@linuxhacker.ru>
---
.../staging/lustre/lustre/llite/llite_internal.h | 4 +
drivers/staging/lustre/lustre/llite/llite_lib.c | 7 +-
drivers/staging/lustre/lustre/llite/lproc_llite.c | 190 ++++++++++++---------
drivers/staging/lustre/lustre/llite/super25.c | 11 +-
4 files changed, 124 insertions(+), 88 deletions(-)
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h
b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 1253b3c..5df2754 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -524,6 +524,9 @@ struct ll_sb_info {
struct rmtacl_ctl_table ll_rct;
struct eacl_table ll_et;
__kernel_fsid_t ll_fsid;
+ struct kobject ll_kobj; /* sysfs object */
+ struct super_block *ll_sb; /* struct super_block (for sysfs code)*/
+ struct completion ll_kobj_unregister;
};
#define LL_DEFAULT_MAX_RW_CHUNK (32 * 1024 * 1024)
@@ -645,6 +648,7 @@ struct lov_stripe_md;
extern spinlock_t inode_lock;
extern struct proc_dir_entry *proc_lustre_fs_root;
+extern struct kset *llite_kset;
static inline struct inode *ll_info2i(struct ll_inode_info *lli)
{
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c
b/drivers/staging/lustre/lustre/llite/llite_lib.c
index e5bac94..e2b3510 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -58,6 +58,7 @@
struct kmem_cache *ll_file_data_slab;
struct proc_dir_entry *proc_lustre_fs_root;
+struct kset *llite_kset;
static LIST_HEAD(ll_super_blocks);
static DEFINE_SPINLOCK(ll_sb_lock);
@@ -66,7 +67,7 @@ static DEFINE_SPINLOCK(ll_sb_lock);
#define log2(n) ffz(~(n))
#endif
-static struct ll_sb_info *ll_init_sbi(void)
+static struct ll_sb_info *ll_init_sbi(struct super_block *sb)
{
struct ll_sb_info *sbi = NULL;
unsigned long pages;
@@ -134,6 +135,8 @@ static struct ll_sb_info *ll_init_sbi(void)
atomic_set(&sbi->ll_agl_total, 0);
sbi->ll_flags |= LL_SBI_AGL_ENABLED;
+ sbi->ll_sb = sb;
+
return sbi;
}
@@ -921,7 +924,7 @@ int ll_fill_super(struct super_block *sb, struct vfsmount
*mnt)
try_module_get(THIS_MODULE);
/* client additional sb info */
- lsi->lsi_llsbi = sbi = ll_init_sbi();
+ lsi->lsi_llsbi = sbi = ll_init_sbi(sb);
if (!sbi) {
module_put(THIS_MODULE);
kfree(cfg);
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c
b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index 83a9b85..8ddaeb1 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -48,31 +48,31 @@ static struct file_operations ll_rw_extents_stats_fops;
static struct file_operations ll_rw_extents_stats_pp_fops;
static struct file_operations ll_rw_offset_stats_fops;
-static int ll_blksize_seq_show(struct seq_file *m, void *v)
+static ssize_t blocksize_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
struct obd_statfs osfs;
int rc;
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs,
+ rc = ll_statfs_internal(sbi->ll_sb, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc)
- seq_printf(m, "%u\n", osfs.os_bsize);
+ return snprintf(buf, PAGE_SIZE, "%u\n", osfs.os_bsize);
return rc;
}
-LPROC_SEQ_FOPS_RO(ll_blksize);
+LUSTRE_RO_ATTR(blocksize);
-static int ll_kbytestotal_seq_show(struct seq_file *m, void *v)
+static ssize_t kbytestotal_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
struct obd_statfs osfs;
int rc;
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs,
+ rc = ll_statfs_internal(sbi->ll_sb, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc) {
@@ -82,21 +82,21 @@ static int ll_kbytestotal_seq_show(struct seq_file *m, void
*v)
while (blk_size >>= 1)
result <<= 1;
- seq_printf(m, "%llu\n", result);
+ rc = snprintf(buf, PAGE_SIZE, "%llu\n", result);
}
return rc;
}
-LPROC_SEQ_FOPS_RO(ll_kbytestotal);
+LUSTRE_RO_ATTR(kbytestotal);
-static int ll_kbytesfree_seq_show(struct seq_file *m, void *v)
+static ssize_t kbytesfree_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
struct obd_statfs osfs;
int rc;
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs,
+ rc = ll_statfs_internal(sbi->ll_sb, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc) {
@@ -106,21 +106,21 @@ static int ll_kbytesfree_seq_show(struct seq_file *m,
void *v)
while (blk_size >>= 1)
result <<= 1;
- seq_printf(m, "%llu\n", result);
+ rc = snprintf(buf, PAGE_SIZE, "%llu\n", result);
}
return rc;
}
-LPROC_SEQ_FOPS_RO(ll_kbytesfree);
+LUSTRE_RO_ATTR(kbytesfree);
-static int ll_kbytesavail_seq_show(struct seq_file *m, void *v)
+static ssize_t kbytesavail_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
struct obd_statfs osfs;
int rc;
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs,
+ rc = ll_statfs_internal(sbi->ll_sb, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc) {
@@ -130,81 +130,74 @@ static int ll_kbytesavail_seq_show(struct seq_file *m,
void *v)
while (blk_size >>= 1)
result <<= 1;
- seq_printf(m, "%llu\n", result);
+ rc = snprintf(buf, PAGE_SIZE, "%llu\n", result);
}
return rc;
}
-LPROC_SEQ_FOPS_RO(ll_kbytesavail);
+LUSTRE_RO_ATTR(kbytesavail);
-static int ll_filestotal_seq_show(struct seq_file *m, void *v)
+static ssize_t filestotal_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
struct obd_statfs osfs;
int rc;
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs,
+ rc = ll_statfs_internal(sbi->ll_sb, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc)
- seq_printf(m, "%llu\n", osfs.os_files);
+ return snprintf(buf, PAGE_SIZE, "%llu\n", osfs.os_files);
return rc;
}
-LPROC_SEQ_FOPS_RO(ll_filestotal);
+LUSTRE_RO_ATTR(filestotal);
-static int ll_filesfree_seq_show(struct seq_file *m, void *v)
+static ssize_t filesfree_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
struct obd_statfs osfs;
int rc;
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs,
+ rc = ll_statfs_internal(sbi->ll_sb, &osfs,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
OBD_STATFS_NODELAY);
if (!rc)
- seq_printf(m, "%llu\n", osfs.os_ffree);
+ return snprintf(buf, PAGE_SIZE, "%llu\n", osfs.os_ffree);
return rc;
}
-LPROC_SEQ_FOPS_RO(ll_filesfree);
+LUSTRE_RO_ATTR(filesfree);
-static int ll_client_type_seq_show(struct seq_file *m, void *v)
+static ssize_t client_type_show(struct kobject *kobj, char *buf)
{
- struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
- LASSERT(sbi != NULL);
-
- if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
- seq_puts(m, "remote client\n");
- else
- seq_puts(m, "local client\n");
-
- return 0;
+ return snprintf(buf, PAGE_SIZE, "%s client\n",
+ sbi->ll_flags & LL_SBI_RMT_CLIENT ? "remote" : "local");
}
-LPROC_SEQ_FOPS_RO(ll_client_type);
+LUSTRE_RO_ATTR(client_type);
-static int ll_fstype_seq_show(struct seq_file *m, void *v)
+static ssize_t fstype_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
- LASSERT(sb != NULL);
- seq_printf(m, "%s\n", sb->s_type->name);
- return 0;
+ return snprintf(buf, PAGE_SIZE, "%s\n", sbi->ll_sb->s_type->name);
}
-LPROC_SEQ_FOPS_RO(ll_fstype);
+LUSTRE_RO_ATTR(fstype);
-static int ll_sb_uuid_seq_show(struct seq_file *m, void *v)
+static ssize_t uuid_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = (struct super_block *)m->private;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
- LASSERT(sb != NULL);
- seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
- return 0;
+ return snprintf(buf, PAGE_SIZE, "%s\n", sbi->ll_sb_uuid.uuid);
}
-LPROC_SEQ_FOPS_RO(ll_sb_uuid);
+LUSTRE_RO_ATTR(uuid);
static int ll_site_stats_seq_show(struct seq_file *m, void *v)
{
@@ -218,10 +211,10 @@ static int ll_site_stats_seq_show(struct seq_file *m,
void *v)
}
LPROC_SEQ_FOPS_RO(ll_site_stats);
-static int ll_max_readahead_mb_seq_show(struct seq_file *m, void *v)
+static ssize_t max_read_ahead_mb_show(struct kobject *kobj, char *buf)
{
- struct super_block *sb = m->private;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
long pages_number;
int mult;
@@ -230,23 +223,26 @@ static int ll_max_readahead_mb_seq_show(struct seq_file
*m, void *v)
spin_unlock(&sbi->ll_lock);
mult = 1 << (20 - PAGE_CACHE_SHIFT);
- return lprocfs_seq_read_frac_helper(m, pages_number, mult);
+ return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
}
-static ssize_t ll_max_readahead_mb_seq_write(struct file *file,
- const char __user *buffer,
- size_t count, loff_t *off)
+static ssize_t max_read_ahead_mb_store(struct kobject *kobj,
+ const char *buffer,
+ size_t count)
{
- struct super_block *sb = ((struct seq_file
*)file->private_data)->private;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- int mult, rc, pages_number;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
+ int rc;
+ unsigned long pages_number;
- mult = 1 << (20 - PAGE_CACHE_SHIFT);
- rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
+ rc = kstrtoul(buffer, 10, &pages_number);
if (rc)
return rc;
- if (pages_number < 0 || pages_number > totalram_pages / 2) {
+ pages_number *= 1 << (20 - PAGE_CACHE_SHIFT); /* MB -> pages */
+
+ if (pages_number > totalram_pages / 2) {
+
CERROR("can't set file readahead more than %lu MB\n",
totalram_pages >> (20 - PAGE_CACHE_SHIFT + 1)); /*1/2 of
RAM*/
return -ERANGE;
@@ -258,7 +254,7 @@ static ssize_t ll_max_readahead_mb_seq_write(struct file
*file,
return count;
}
-LPROC_SEQ_FOPS(ll_max_readahead_mb);
+LUSTRE_RW_ATTR(max_read_ahead_mb);
static int ll_max_readahead_per_file_mb_seq_show(struct seq_file *m, void *v)
{
@@ -835,19 +831,7 @@ static ssize_t ll_xattr_cache_seq_write(struct file *file,
LPROC_SEQ_FOPS(ll_xattr_cache);
static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
- { "uuid", &ll_sb_uuid_fops, NULL, 0 },
- /* { "mntpt_path", ll_rd_path, 0, 0 }, */
- { "fstype", &ll_fstype_fops, NULL, 0 },
{ "site", &ll_site_stats_fops, NULL, 0 },
- { "blocksize", &ll_blksize_fops, NULL, 0 },
- { "kbytestotal", &ll_kbytestotal_fops, NULL, 0 },
- { "kbytesfree", &ll_kbytesfree_fops, NULL, 0 },
- { "kbytesavail", &ll_kbytesavail_fops, NULL, 0 },
- { "filestotal", &ll_filestotal_fops, NULL, 0 },
- { "filesfree", &ll_filesfree_fops, NULL, 0 },
- { "client_type", &ll_client_type_fops, NULL, 0 },
- /* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */
- { "max_read_ahead_mb", &ll_max_readahead_mb_fops, NULL },
{ "max_read_ahead_per_file_mb", &ll_max_readahead_per_file_mb_fops,
NULL },
{ "max_read_ahead_whole_mb", &ll_max_read_ahead_whole_mb_fops, NULL },
@@ -872,6 +856,33 @@ static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
#define MAX_STRING_SIZE 128
+static struct attribute *llite_attrs[] = {
+ LUSTRE_ATTR_LIST(blocksize),
+ LUSTRE_ATTR_LIST(kbytestotal),
+ LUSTRE_ATTR_LIST(kbytesfree),
+ LUSTRE_ATTR_LIST(kbytesavail),
+ LUSTRE_ATTR_LIST(uuid),
+ LUSTRE_ATTR_LIST(fstype),
+ LUSTRE_ATTR_LIST(filestotal),
+ LUSTRE_ATTR_LIST(filesfree),
+ LUSTRE_ATTR_LIST(client_type),
+ LUSTRE_ATTR_LIST(max_read_ahead_mb),
+ NULL,
+};
+
+static void llite_sb_release(struct kobject *kobj)
+{
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kobj);
+ complete(&sbi->ll_kobj_unregister);
+}
+
+static struct kobj_type llite_ktype = {
+ .default_attrs = llite_attrs,
+ .sysfs_ops = &lustre_sysfs_ops,
+ .release = llite_sb_release,
+};
+
static const struct llite_file_opcode {
__u32 opcode;
__u32 type;
@@ -1064,6 +1075,13 @@ int lprocfs_register_mountpoint(struct proc_dir_entry
*parent,
if (err)
goto out;
+ sbi->ll_kobj.kset = llite_kset;
+ init_completion(&sbi->ll_kobj_unregister);
+ err = kobject_init_and_add(&sbi->ll_kobj, &llite_ktype, NULL,
+ "%s", name);
+ if (err)
+ goto out;
+
/* MDC info */
obd = class_name2obd(mdc);
@@ -1124,6 +1142,8 @@ void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi)
{
if (sbi->ll_proc_root) {
lprocfs_remove(&sbi->ll_proc_root);
+ kobject_put(&sbi->ll_kobj);
+ wait_for_completion(&sbi->ll_kobj_unregister);
lprocfs_free_stats(&sbi->ll_ra_stats);
lprocfs_free_stats(&sbi->ll_stats);
}
diff --git a/drivers/staging/lustre/lustre/llite/super25.c
b/drivers/staging/lustre/lustre/llite/super25.c
index a494f62..7ad00b3 100644
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ b/drivers/staging/lustre/lustre/llite/super25.c
@@ -138,6 +138,12 @@ static int __init init_lustre_lite(void)
proc_lustre_fs_root = entry;
+ llite_kset = kset_create_and_add("llite", NULL, &lustre_kobj);
+ if (!llite_kset) {
+ rc = -ENOMEM;
+ goto out_proc;
+ }
+
cfs_get_random_bytes(seed, sizeof(seed));
/* Nodes with small feet have little entropy. The NID for this
@@ -155,7 +161,7 @@ static int __init init_lustre_lite(void)
setup_timer(&ll_capa_timer, ll_capa_timer_callback, 0);
rc = ll_capa_thread_start();
if (rc != 0)
- goto out_proc;
+ goto out_sysfs;
rc = vvp_global_init();
if (rc != 0)
@@ -176,6 +182,8 @@ out_vvp:
out_capa:
del_timer(&ll_capa_timer);
ll_capa_thread_stop();
+out_sysfs:
+ kset_unregister(llite_kset);
out_proc:
lprocfs_remove(&proc_lustre_fs_root);
out_cache:
@@ -201,6 +209,7 @@ static void __exit exit_lustre_lite(void)
lustre_register_client_process_config(NULL);
lprocfs_remove(&proc_lustre_fs_root);
+ kset_unregister(llite_kset);
ll_xattr_fini();
vvp_global_fini();
--
2.1.0
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