* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <libcfs/libcfs_string.h>
#include "mdd_internal.h"
-int mdd_procfs_init(struct mdd_device *mdd, const char *name)
-{
- struct lprocfs_static_vars lvars;
- struct obd_type *type;
- int rc;
- ENTRY;
-
- /* at the moment there is no linkage between lu_type
- * and obd_type, so we lookup obd_type this way */
- type = class_search_type(LUSTRE_MDD_NAME);
-
- LASSERT(name != NULL);
- LASSERT(type != NULL);
-
- /* Find the type procroot and add the proc entry for this device */
- lprocfs_mdd_init_vars(&lvars);
- mdd->mdd_proc_entry = lprocfs_register(name, type->typ_procroot,
- lvars.obd_vars, mdd);
- if (IS_ERR(mdd->mdd_proc_entry)) {
- rc = PTR_ERR(mdd->mdd_proc_entry);
- CERROR("Error %d setting up lprocfs for %s\n",
- rc, name);
- mdd->mdd_proc_entry = NULL;
- GOTO(out, rc);
- }
-
- rc = 0;
-
- EXIT;
-out:
- if (rc)
- mdd_procfs_fini(mdd);
- return rc;
-}
-
-int mdd_procfs_fini(struct mdd_device *mdd)
-{
- if (mdd->mdd_proc_entry) {
- lprocfs_remove(&mdd->mdd_proc_entry);
- mdd->mdd_proc_entry = NULL;
- }
- RETURN(0);
-}
-
-static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+mdd_atime_diff_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct mdd_device *mdd = data;
- char kernbuf[20], *end;
- unsigned long diff = 0;
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
+ char kernbuf[20], *end;
+ unsigned long diff = 0;
if (count > (sizeof(kernbuf) - 1))
return -EINVAL;
- if (cfs_copy_from_user(kernbuf, buffer, count))
+ if (copy_from_user(kernbuf, buffer, count))
return -EFAULT;
kernbuf[count] = '\0';
return count;
}
-static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mdd_atime_diff_seq_show(struct seq_file *m, void *data)
{
- struct mdd_device *mdd = data;
+ struct mdd_device *mdd = m->private;
- *eof = 1;
- return snprintf(page, count, "%lu\n", mdd->mdd_atime_diff);
+ return seq_printf(m, "%lu\n", mdd->mdd_atime_diff);
}
-
+LPROC_SEQ_FOPS(mdd_atime_diff);
/**** changelogs ****/
-static int lprocfs_rd_changelog_mask(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mdd_changelog_mask_seq_show(struct seq_file *m, void *data)
{
- struct mdd_device *mdd = data;
- int i = 0, rc = 0;
-
- *eof = 1;
- while (i < CL_LAST) {
- if (mdd->mdd_cl.mc_mask & (1 << i))
- rc += snprintf(page + rc, count - rc, "%s ",
- changelog_type2str(i));
- i++;
- }
- return rc;
+ struct mdd_device *mdd = m->private;
+ int i = 0;
+
+ while (i < CL_LAST) {
+ if (mdd->mdd_cl.mc_mask & (1 << i))
+ seq_printf(m, "%s ", changelog_type2str(i));
+ i++;
+ }
+ return 0;
}
-static int lprocfs_wr_changelog_mask(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+mdd_changelog_mask_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct mdd_device *mdd = data;
- char *kernbuf;
- int rc;
- ENTRY;
-
- if (count >= CFS_PAGE_SIZE)
- RETURN(-EINVAL);
- OBD_ALLOC(kernbuf, CFS_PAGE_SIZE);
- if (kernbuf == NULL)
- RETURN(-ENOMEM);
- if (cfs_copy_from_user(kernbuf, buffer, count))
- GOTO(out, rc = -EFAULT);
- kernbuf[count] = 0;
-
- rc = cfs_str2mask(kernbuf, changelog_type2str, &mdd->mdd_cl.mc_mask,
- CHANGELOG_MINMASK, CHANGELOG_ALLMASK);
- if (rc == 0)
- rc = count;
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
+ char *kernbuf;
+ int rc;
+ ENTRY;
+
+ if (count >= PAGE_CACHE_SIZE)
+ RETURN(-EINVAL);
+ OBD_ALLOC(kernbuf, PAGE_CACHE_SIZE);
+ if (kernbuf == NULL)
+ RETURN(-ENOMEM);
+ if (copy_from_user(kernbuf, buffer, count))
+ GOTO(out, rc = -EFAULT);
+ kernbuf[count] = 0;
+
+ rc = cfs_str2mask(kernbuf, changelog_type2str, &mdd->mdd_cl.mc_mask,
+ CHANGELOG_MINMASK, CHANGELOG_ALLMASK);
+ if (rc == 0)
+ rc = count;
out:
- OBD_FREE(kernbuf, CFS_PAGE_SIZE);
- return rc;
+ OBD_FREE(kernbuf, PAGE_CACHE_SIZE);
+ return rc;
}
-
-struct cucb_data {
- char *page;
- int count;
- int idx;
-};
+LPROC_SEQ_FOPS(mdd_changelog_mask);
static int lprocfs_changelog_users_cb(const struct lu_env *env,
struct llog_handle *llh,
struct llog_rec_hdr *hdr, void *data)
{
- struct llog_changelog_user_rec *rec;
- struct cucb_data *cucb = (struct cucb_data *)data;
-
- LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
+ struct llog_changelog_user_rec *rec;
+ struct seq_file *m = data;
- rec = (struct llog_changelog_user_rec *)hdr;
+ LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
- cucb->idx += snprintf(cucb->page + cucb->idx, cucb->count - cucb->idx,
- CHANGELOG_USER_PREFIX"%-3d "LPU64"\n",
- rec->cur_id, rec->cur_endrec);
- if (cucb->idx >= cucb->count)
- return -ENOSPC;
+ rec = (struct llog_changelog_user_rec *)hdr;
- return 0;
+ seq_printf(m, CHANGELOG_USER_PREFIX"%-3d "LPU64"\n",
+ rec->cur_id, rec->cur_endrec);
+ return 0;
}
-static int lprocfs_rd_changelog_users(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mdd_changelog_users_seq_show(struct seq_file *m, void *data)
{
struct lu_env env;
- struct mdd_device *mdd = data;
+ struct mdd_device *mdd = m->private;
struct llog_ctxt *ctxt;
- struct cucb_data cucb;
__u64 cur;
int rc;
- *eof = 1;
-
ctxt = llog_get_context(mdd2obd_dev(mdd),
LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
cur = mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_lock);
- cucb.count = count;
- cucb.page = page;
- cucb.idx = 0;
-
- cucb.idx += snprintf(cucb.page + cucb.idx, cucb.count - cucb.idx,
- "current index: "LPU64"\n", cur);
-
- cucb.idx += snprintf(cucb.page + cucb.idx, cucb.count - cucb.idx,
- "%-5s %s\n", "ID", "index");
+ seq_printf(m, "current index: "LPU64"\n", cur);
+ seq_printf(m, "%-5s %s\n", "ID", "index");
llog_cat_process(&env, ctxt->loc_handle, lprocfs_changelog_users_cb,
- &cucb, 0, 0);
+ m, 0, 0);
lu_env_fini(&env);
llog_ctxt_put(ctxt);
- return cucb.idx;
+ return 0;
}
+LPROC_SEQ_FOPS_RO(mdd_changelog_users);
-static int lprocfs_rd_sync_perm(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mdd_sync_perm_seq_show(struct seq_file *m, void *data)
{
- struct mdd_device *mdd = data;
+ struct mdd_device *mdd = m->private;
- LASSERT(mdd != NULL);
- return snprintf(page, count, "%d\n", mdd->mdd_sync_permission);
+ LASSERT(mdd != NULL);
+ return seq_printf(m, "%d\n", mdd->mdd_sync_permission);
}
-static int lprocfs_wr_sync_perm(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+mdd_sync_perm_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct mdd_device *mdd = data;
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
int val, rc;
LASSERT(mdd != NULL);
mdd->mdd_sync_permission = !!val;
return count;
}
+LPROC_SEQ_FOPS(mdd_sync_perm);
-static int lprocfs_rd_lfsck_speed_limit(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mdd_lfsck_speed_limit_seq_show(struct seq_file *m, void *data)
{
- struct mdd_device *mdd = data;
+ struct mdd_device *mdd = m->private;
LASSERT(mdd != NULL);
- *eof = 1;
- return snprintf(page, count, "%u\n", mdd->mdd_lfsck.ml_speed_limit);
+ return lfsck_get_speed(m, mdd->mdd_bottom);
}
-static int lprocfs_wr_lfsck_speed_limit(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+mdd_lfsck_speed_limit_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
- struct mdd_device *mdd = data;
- struct md_lfsck *lfsck;
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
__u32 val;
int rc;
LASSERT(mdd != NULL);
rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
+ if (rc != 0)
return rc;
- lfsck = &mdd->mdd_lfsck;
- if (val != lfsck->ml_speed_limit)
- mdd_lfsck_set_speed(lfsck, val);
- return count;
+ rc = lfsck_set_speed(mdd->mdd_bottom, val);
+ return rc != 0 ? rc : count;
}
+LPROC_SEQ_FOPS(mdd_lfsck_speed_limit);
-static struct lprocfs_vars lprocfs_mdd_obd_vars[] = {
- { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
- { "changelog_mask", lprocfs_rd_changelog_mask,
- lprocfs_wr_changelog_mask, 0 },
- { "changelog_users", lprocfs_rd_changelog_users, 0, 0},
- { "sync_permission", lprocfs_rd_sync_perm, lprocfs_wr_sync_perm, 0 },
- { "lfsck_speed_limit", lprocfs_rd_lfsck_speed_limit,
- lprocfs_wr_lfsck_speed_limit, 0 },
- { 0 }
-};
+static int mdd_lfsck_async_windows_seq_show(struct seq_file *m, void *data)
+{
+ struct mdd_device *mdd = m->private;
-static struct lprocfs_vars lprocfs_mdd_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { 0 }
+ LASSERT(mdd != NULL);
+ return lfsck_get_windows(m, mdd->mdd_bottom);
+}
+
+static ssize_t
+mdd_lfsck_async_windows_seq_write(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
+ __u32 val;
+ int rc;
+
+ LASSERT(mdd != NULL);
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc == 0)
+ rc = lfsck_set_windows(mdd->mdd_bottom, val);
+
+ return rc != 0 ? rc : count;
+}
+LPROC_SEQ_FOPS(mdd_lfsck_async_windows);
+
+static int mdd_lfsck_namespace_seq_show(struct seq_file *m, void *data)
+{
+ struct mdd_device *mdd = m->private;
+
+ LASSERT(mdd != NULL);
+
+ return lfsck_dump(m, mdd->mdd_bottom, LT_NAMESPACE);
+}
+LPROC_SEQ_FOPS_RO(mdd_lfsck_namespace);
+
+static int mdd_lfsck_layout_seq_show(struct seq_file *m, void *data)
+{
+ struct mdd_device *mdd = m->private;
+
+ LASSERT(mdd != NULL);
+
+ return lfsck_dump(m, mdd->mdd_bottom, LT_LAYOUT);
+}
+LPROC_SEQ_FOPS_RO(mdd_lfsck_layout);
+
+static struct lprocfs_seq_vars lprocfs_mdd_obd_vars[] = {
+ { .name = "atime_diff",
+ .fops = &mdd_atime_diff_fops },
+ { .name = "changelog_mask",
+ .fops = &mdd_changelog_mask_fops },
+ { .name = "changelog_users",
+ .fops = &mdd_changelog_users_fops },
+ { .name = "sync_permission",
+ .fops = &mdd_sync_perm_fops },
+ { .name = "lfsck_speed_limit",
+ .fops = &mdd_lfsck_speed_limit_fops },
+ { .name = "lfsck_async_windows",
+ .fops = &mdd_lfsck_async_windows_fops },
+ { .name = "lfsck_namespace",
+ .fops = &mdd_lfsck_namespace_fops },
+ { .name = "lfsck_layout",
+ .fops = &mdd_lfsck_layout_fops },
+ { 0 }
};
-void lprocfs_mdd_init_vars(struct lprocfs_static_vars *lvars)
+int mdd_procfs_init(struct mdd_device *mdd, const char *name)
{
- lvars->module_vars = lprocfs_mdd_module_vars;
- lvars->obd_vars = lprocfs_mdd_obd_vars;
+ struct obd_device *obd = class_name2obd(name);
+ struct obd_type *type;
+ int rc;
+ ENTRY;
+
+ /* at the moment there is no linkage between lu_type
+ * and obd_type, so we lookup obd_type this way */
+ type = class_search_type(LUSTRE_MDD_NAME);
+
+ LASSERT(name != NULL);
+ LASSERT(type != NULL);
+ LASSERT(obd != NULL);
+
+ /* Find the type procroot and add the proc entry for this device */
+ obd->obd_vars = lprocfs_mdd_obd_vars;
+ mdd->mdd_proc_entry = lprocfs_seq_register(name, type->typ_procroot,
+ obd->obd_vars, mdd);
+ if (IS_ERR(mdd->mdd_proc_entry)) {
+ rc = PTR_ERR(mdd->mdd_proc_entry);
+ CERROR("Error %d setting up lprocfs for %s\n",
+ rc, name);
+ mdd->mdd_proc_entry = NULL;
+ GOTO(out, rc);
+ }
+ rc = 0;
+ EXIT;
+out:
+ if (rc)
+ mdd_procfs_fini(mdd);
+ return rc;
}
+void mdd_procfs_fini(struct mdd_device *mdd)
+{
+ if (mdd->mdd_proc_entry)
+ lprocfs_remove(&mdd->mdd_proc_entry);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff