-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Wang Di <wangdi@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
-#include <linux/module.h>
-#include <linux/poll.h>
#include <obd.h>
#include <obd_class.h>
-#include <lustre_ver.h>
#include <obd_support.h>
#include <lprocfs_status.h>
-#include <lu_time.h>
-#include <lustre_log.h>
-#include <lustre/lustre_idl.h>
#include <libcfs/libcfs_string.h>
-
#include "mdd_internal.h"
-#ifndef SEEK_CUR /* SLES10 needs this */
-#define SEEK_CUR 1
-#define SEEK_END 2
-#endif
-
-static const char *mdd_counter_names[LPROC_MDD_NR] = {
-};
-
-/* from LPROC_SEQ_FOPS(mdd_changelog) below */
-extern struct file_operations mdd_changelog_fops;
-
-int mdd_procfs_init(struct mdd_device *mdd, const char *name)
-{
- struct lprocfs_static_vars lvars;
- struct lu_device *ld = &mdd->mdd_md_dev.md_lu_dev;
- struct obd_type *type;
- int rc;
- ENTRY;
-
- type = ld->ld_type->ldt_obd_type;
-
- 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 = lu_time_init(&mdd->mdd_stats,
- mdd->mdd_proc_entry,
- mdd_counter_names, ARRAY_SIZE(mdd_counter_names));
-
- EXIT;
-out:
- if (rc)
- mdd_procfs_fini(mdd);
- return rc;
-}
-
-int mdd_procfs_fini(struct mdd_device *mdd)
-{
- if (mdd->mdd_stats)
- lu_time_fini(&mdd->mdd_stats);
-
- if (mdd->mdd_proc_entry) {
- lprocfs_remove(&mdd->mdd_proc_entry);
- mdd->mdd_proc_entry = NULL;
- }
- RETURN(0);
-}
-
-void mdd_lprocfs_time_start(const struct lu_env *env)
-{
- lu_lprocfs_time_start(env);
-}
-
-void mdd_lprocfs_time_end(const struct lu_env *env, struct mdd_device *mdd,
- int idx)
+static ssize_t
+mdd_atime_diff_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- lu_lprocfs_time_end(env, mdd->mdd_stats, idx);
-}
-
-static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- 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 (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;
-
- *eof = 1;
- return snprintf(page, count, "%lu\n", mdd->mdd_atime_diff);
-}
-
-/* match enum changelog_rec_type */
-static const char *changelog_str[] = {"MARK","CREAT","MKDIR","HLINK","SLINK",
- "MKNOD","UNLNK","RMDIR","RNMFM","RNMTO","OPEN","CLOSE","IOCTL",
- "TRUNC","SATTR","XATTR"};
+ struct mdd_device *mdd = m->private;
-const char *changelog_bit2str(int bit)
-{
- if (bit < CL_LAST)
- return changelog_str[bit];
- return NULL;
+ seq_printf(m, "%lu\n", mdd->mdd_atime_diff);
+ return 0;
}
+LPROC_SEQ_FOPS(mdd_atime_diff);
-static int lprocfs_rd_cl_mask(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**** changelogs ****/
+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_str[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_cl_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 __user *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 (copy_from_user(kernbuf, buffer, count))
- GOTO(out, rc = -EFAULT);
- kernbuf[count] = 0;
-
- rc = libcfs_str2mask(kernbuf, changelog_bit2str,
- &mdd->mdd_cl.mc_mask, CL_MINMASK, CL_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;
}
+LPROC_SEQ_FOPS(mdd_changelog_mask);
-/** struct for holding changelog data for seq_file processing */
-struct cl_seq_iter {
- struct mdd_device *csi_mdd;
- __u64 csi_startrec;
- __u64 csi_endrec;
- loff_t csi_pos;
- int csi_wrote;
- int csi_startcat;
- int csi_startidx;
- int csi_fill:1;
-};
-
-/* non-seq version for direct calling by class_process_proc_param */
-static int lprocfs_wr_cl(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int lprocfs_changelog_users_cb(const struct lu_env *env,
+ struct llog_handle *llh,
+ struct llog_rec_hdr *hdr, void *data)
{
- struct mdd_device *mdd = (struct mdd_device *)data;
- char kernbuf[32];
- char *end;
- int rc;
+ struct llog_changelog_user_rec *rec;
+ struct seq_file *m = data;
- if (count > (sizeof(kernbuf) - 1))
- goto out_usage;
+ LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
- count = min_t(unsigned long, count, sizeof(kernbuf));
- if (copy_from_user(kernbuf, buffer, count))
- return -EFAULT;
+ rec = (struct llog_changelog_user_rec *)hdr;
- kernbuf[count] = '\0';
- /* strip trailing newline from "echo blah" */
- if (kernbuf[count - 1] == '\n')
- kernbuf[count - 1] = '\0';
-
- if (strcmp(kernbuf, "on") == 0) {
- LCONSOLE_INFO("changelog on\n");
- if (mdd->mdd_cl.mc_flags & CLM_ERR) {
- CERROR("Changelogs cannot be enabled due to error "
- "condition.\n");
- } else {
- spin_lock(&mdd->mdd_cl.mc_lock);
- mdd->mdd_cl.mc_flags |= CLM_ON;
- spin_unlock(&mdd->mdd_cl.mc_lock);
- rc = mdd_changelog_write_header(mdd, CLM_START);
- if (rc)
- return rc;
- }
- } else if (strcmp(kernbuf, "off") == 0) {
- LCONSOLE_INFO("changelog off\n");
- rc = mdd_changelog_write_header(mdd, CLM_FINI);
- if (rc)
- return rc;
- spin_lock(&mdd->mdd_cl.mc_lock);
- mdd->mdd_cl.mc_flags &= ~CLM_ON;
- spin_unlock(&mdd->mdd_cl.mc_lock);
- } else {
- /* purge to an index */
- long long unsigned endrec, cur;
-
- spin_lock(&mdd->mdd_cl.mc_lock);
- cur = (long long)mdd->mdd_cl.mc_index;
- spin_unlock(&mdd->mdd_cl.mc_lock);
-
- if (strcmp(kernbuf, "0") == 0)
- /* purge to "0" is shorthand for everything */
- endrec = cur;
- else
- endrec = (long long)simple_strtoull(kernbuf, &end, 0);
- if ((kernbuf == end) || (endrec == 0))
- goto out_usage;
- if (endrec > cur)
- endrec = cur;
-
- /* If purging all records, write a header entry so we
- don't have an empty catalog and
- we're sure to have a valid starting index next time. In
- case of crash, we just restart with old log so we're
- allright. */
- if (endrec == cur) {
- rc = mdd_changelog_write_header(mdd, CLM_PURGE);
- if (rc)
- return rc;
- }
-
- LCONSOLE_INFO("changelog purge to %llu\n", endrec);
-
- rc = mdd_changelog_llog_cancel(mdd, endrec);
- if (rc < 0)
- return rc;
- }
-
- return count;
-
-out_usage:
- CWARN("changelog write usage: [on|off] | <purge_idx (0=all)>\n");
- return -EINVAL;
+ seq_printf(m, CHANGELOG_USER_PREFIX"%-3d "LPU64"\n",
+ rec->cur_id, rec->cur_endrec);
+ return 0;
}
-static ssize_t mdd_cl_seq_write(struct file *file, const char *buffer,
- size_t count, loff_t *off)
+static int mdd_changelog_users_seq_show(struct seq_file *m, void *data)
{
- struct seq_file *seq = file->private_data;
- struct cl_seq_iter *csi = seq->private;
- struct mdd_device *mdd = csi->csi_mdd;
+ struct lu_env env;
+ struct mdd_device *mdd = m->private;
+ struct llog_ctxt *ctxt;
+ __u64 cur;
+ int rc;
+
+ ctxt = llog_get_context(mdd2obd_dev(mdd),
+ LLOG_CHANGELOG_USER_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+ LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
- return lprocfs_wr_cl(file, buffer, count, mdd);
-}
+ rc = lu_env_init(&env, LCT_LOCAL);
+ if (rc) {
+ llog_ctxt_put(ctxt);
+ return rc;
+ }
-#define D_CL 0
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ cur = mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
-/* How many records per seq_show. Too small, we spawn llog_process threads
- too often; too large, we run out of buffer space */
-#define CL_CHUNK_SIZE 100
+ seq_printf(m, "current index: "LPU64"\n", cur);
+ seq_printf(m, "%-5s %s\n", "ID", "index");
-static int changelog_show_cb(struct llog_handle *llh, struct llog_rec_hdr *hdr,
- void *data)
-{
- struct seq_file *seq = (struct seq_file *)data;
- struct cl_seq_iter *csi = seq->private;
- struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
- int rc;
- ENTRY;
-
- if ((rec->cr_hdr.lrh_type != CHANGELOG_REC) ||
- (rec->cr_type >= CL_LAST)) {
- CERROR("Not a changelog rec? %d/%d\n", rec->cr_hdr.lrh_type,
- rec->cr_type);
- RETURN(-EINVAL);
- }
-
- CDEBUG(D_CL, "rec="LPU64" start="LPU64" cat=%d:%d start=%d:%d\n",
- rec->cr_index, csi->csi_startrec,
- llh->lgh_hdr->llh_cat_idx, llh->lgh_cur_idx,
- csi->csi_startcat, csi->csi_startidx);
-
- if (rec->cr_index < csi->csi_startrec)
- RETURN(0);
- if (rec->cr_index == csi->csi_startrec) {
- /* Remember where we started, since seq_read will re-read
- * the data when it reallocs space. Sigh, if only there was
- * a way to tell seq_file how big the buf should be in the
- * first place... */
- csi->csi_startcat = llh->lgh_hdr->llh_cat_idx;
- csi->csi_startidx = rec->cr_hdr.lrh_index - 1;
- }
- if (csi->csi_wrote > CL_CHUNK_SIZE) {
- /* Stop at some point with a reasonable seq_file buffer size.
- * Start from here the next time.
- */
- csi->csi_endrec = rec->cr_index - 1;
- csi->csi_startcat = llh->lgh_hdr->llh_cat_idx;
- csi->csi_startidx = rec->cr_hdr.lrh_index - 1;
- csi->csi_wrote = 0;
- RETURN(LLOG_PROC_BREAK);
- }
-
- rc = seq_printf(seq, LPU64" %02d%-5s "LPU64" 0x%x t="DFID,
- rec->cr_index, rec->cr_type,
- changelog_str[rec->cr_type], rec->cr_time,
- rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
-
- if (rec->cr_namelen)
- /* namespace rec includes parent and filename */
- rc += seq_printf(seq, " p="DFID" %.*s\n", PFID(&rec->cr_pfid),
- rec->cr_namelen, rec->cr_name);
- else
- rc += seq_puts(seq, "\n");
-
- if (rc < 0) {
- /* seq_read will dump the whole buffer and re-seq_start with a
- larger one; no point in continuing the llog_process */
- CDEBUG(D_CL, "rec="LPU64" overflow "LPU64"<-"LPU64"\n",
- rec->cr_index, csi->csi_startrec, csi->csi_endrec);
- csi->csi_endrec = csi->csi_startrec - 1;
- csi->csi_wrote = 0;
- RETURN(LLOG_PROC_BREAK);
- }
-
- csi->csi_wrote++;
- csi->csi_endrec = rec->cr_index;
-
- RETURN(0);
+ llog_cat_process(&env, ctxt->loc_handle, lprocfs_changelog_users_cb,
+ m, 0, 0);
+
+ lu_env_fini(&env);
+ llog_ctxt_put(ctxt);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(mdd_changelog_users);
-static int mdd_cl_seq_show(struct seq_file *seq, void *v)
+static int mdd_changelog_size_ctxt(const struct lu_env *env,
+ struct mdd_device *mdd,
+ int index, __u64 *val)
{
- struct cl_seq_iter *csi = seq->private;
- struct obd_device *obd = mdd2obd_dev(csi->csi_mdd);
- struct llog_ctxt *ctxt;
- int rc;
-
- if (csi->csi_fill) {
- /* seq_read wants more data to fill his buffer. But we already
- filled the buf as much as we cared to; force seq_read to
- accept that. */
- while ((rc = seq_putc(seq, 0)) == 0);
- return 0;
- }
-
- ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
- if (ctxt == NULL)
- return -ENOENT;
+ struct llog_ctxt *ctxt;
- /* Since we have to restart the llog_cat_process for each chunk of the
- seq_ functions, start from where we left off. */
- rc = llog_cat_process(ctxt->loc_handle, changelog_show_cb, seq,
- csi->csi_startcat, csi->csi_startidx);
+ ctxt = llog_get_context(mdd2obd_dev(mdd),
+ index);
+ if (ctxt == NULL)
+ return -ENXIO;
- CDEBUG(D_CL, "seq_show "LPU64"-"LPU64" cat=%d:%d wrote=%d rc=%d\n",
- csi->csi_startrec, csi->csi_endrec, csi->csi_startcat,
- csi->csi_startidx, csi->csi_wrote, rc);
+ if (!(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
+ CERROR("%s: ChangeLog has wrong flags: rc = %d\n",
+ ctxt->loc_obd->obd_name, -EINVAL);
+ llog_ctxt_put(ctxt);
+ return -EINVAL;
+ }
- llog_ctxt_put(ctxt);
+ *val += llog_cat_size(env, ctxt->loc_handle);
- if (rc == LLOG_PROC_BREAK)
- rc = 0;
+ llog_ctxt_put(ctxt);
- return rc;
-}
-
-static int mdd_cl_done(struct cl_seq_iter *csi)
-{
- int done = 0;
- spin_lock(&csi->csi_mdd->mdd_cl.mc_lock);
- done = (csi->csi_endrec >= csi->csi_mdd->mdd_cl.mc_index);
- spin_unlock(&csi->csi_mdd->mdd_cl.mc_lock);
- return done;
+ return 0;
}
-
-static void *mdd_cl_seq_start(struct seq_file *seq, loff_t *pos)
+static int mdd_changelog_size_seq_show(struct seq_file *m, void *data)
{
- struct cl_seq_iter *csi = seq->private;
- LASSERT(csi);
-
- CDEBUG(D_CL, "start "LPU64"-"LPU64" pos="LPU64"\n",
- csi->csi_startrec, csi->csi_endrec, *pos);
-
- csi->csi_fill = 0;
-
- if (mdd_cl_done(csi))
- /* no more records, seq_read should return 0 if buffer
- is empty */
- return NULL;
-
- if (*pos > csi->csi_pos) {
- /* The seq_read implementation sucks. It may call start
- multiple times, using pos to indicate advances, if any,
- by arbitrarily increasing it by 1. So ignore the actual
- value of pos, and just register any increase as
- "seq_read wants the next values". */
- csi->csi_startrec = csi->csi_endrec + 1;
- csi->csi_pos = *pos;
- }
- /* else use old startrec/startidx */
-
- return csi;
+ struct lu_env env;
+ struct mdd_device *mdd = m->private;
+ __u64 tmp = 0;
+ int rc;
+
+ rc = lu_env_init(&env, LCT_LOCAL);
+ if (rc)
+ return rc;
+
+ rc = mdd_changelog_size_ctxt(&env, mdd, LLOG_CHANGELOG_ORIG_CTXT, &tmp);
+ if (rc) {
+ lu_env_fini(&env);
+ return rc;
+ }
+
+ rc = mdd_changelog_size_ctxt(&env, mdd, LLOG_CHANGELOG_USER_ORIG_CTXT,
+ &tmp);
+
+ seq_printf(m, LPU64"\n", tmp);
+ lu_env_fini(&env);
+ return rc;
}
+LPROC_SEQ_FOPS_RO(mdd_changelog_size);
-static void mdd_cl_seq_stop(struct seq_file *seq, void *v)
+static int mdd_sync_perm_seq_show(struct seq_file *m, void *data)
{
- struct cl_seq_iter *csi = seq->private;
+ struct mdd_device *mdd = m->private;
- CDEBUG(D_CL, "stop "LPU64"-"LPU64"\n",
- csi->csi_startrec, csi->csi_endrec);
+ LASSERT(mdd != NULL);
+ seq_printf(m, "%d\n", mdd->mdd_sync_permission);
+ return 0;
}
-static void *mdd_cl_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+static ssize_t
+mdd_sync_perm_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct cl_seq_iter *csi = seq->private;
-
- CDEBUG(D_CL, "next "LPU64"-"LPU64" pos="LPU64"\n",
- csi->csi_startrec, csi->csi_endrec, *pos);
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
+ int val, rc;
- csi->csi_fill = 1;
+ LASSERT(mdd != NULL);
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
- return csi;
+ mdd->mdd_sync_permission = !!val;
+ return count;
}
+LPROC_SEQ_FOPS(mdd_sync_perm);
-struct seq_operations mdd_cl_sops = {
- .start = mdd_cl_seq_start,
- .stop = mdd_cl_seq_stop,
- .next = mdd_cl_seq_next,
- .show = mdd_cl_seq_show,
-};
-
-static int mdd_cl_seq_open(struct inode *inode, struct file *file)
+static int mdd_lfsck_speed_limit_seq_show(struct seq_file *m, void *data)
{
- struct cl_seq_iter *csi;
- struct proc_dir_entry *dp = PDE(inode);
- struct seq_file *seq;
- int rc;
-
- LPROCFS_ENTRY_AND_CHECK(dp);
-
- rc = seq_open(file, &mdd_cl_sops);
- if (rc)
- goto out;
-
- OBD_ALLOC_PTR(csi);
- if (csi == NULL) {
- rc = -ENOMEM;
- goto out;
- }
- csi->csi_mdd = dp->data;
- seq = file->private_data;
- seq->private = csi;
+ struct mdd_device *mdd = m->private;
-out:
- if (rc)
- LPROCFS_EXIT();
- return rc;
+ LASSERT(mdd != NULL);
+ return lfsck_get_speed(m, mdd->mdd_bottom);
}
-static int mdd_cl_seq_release(struct inode *inode, struct file *file)
+static ssize_t
+mdd_lfsck_speed_limit_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct cl_seq_iter *csi = seq->private;
-
- OBD_FREE_PTR(csi);
-
- return lprocfs_seq_release(inode, file);
+ 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)
+ return rc;
+
+ rc = lfsck_set_speed(mdd->mdd_bottom, val);
+ return rc != 0 ? rc : count;
}
+LPROC_SEQ_FOPS(mdd_lfsck_speed_limit);
-static loff_t mdd_cl_seq_lseek(struct file *file, loff_t offset, int origin)
+static int mdd_lfsck_async_windows_seq_show(struct seq_file *m, void *data)
{
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct cl_seq_iter *csi = seq->private;
+ struct mdd_device *mdd = m->private;
- CDEBUG(D_CL, "seek "LPU64"-"LPU64" off="LPU64":%d fpos="LPU64"\n",
- csi->csi_startrec, csi->csi_endrec, offset, origin, file->f_pos);
-
- LL_SEQ_LOCK(seq);
-
- switch (origin) {
- case SEEK_CUR:
- offset += csi->csi_endrec;
- break;
- case SEEK_END:
- spin_lock(&csi->csi_mdd->mdd_cl.mc_lock);
- offset += csi->csi_mdd->mdd_cl.mc_index;
- spin_unlock(&csi->csi_mdd->mdd_cl.mc_lock);
- break;
- }
-
- /* SEEK_SET */
-
- if (offset < 0) {
- LL_SEQ_UNLOCK(seq);
- return -EINVAL;
- }
-
- csi->csi_startrec = offset;
- csi->csi_endrec = offset ? offset - 1 : 0;
-
- /* drop whatever is left in sucky seq_read's buffer */
- seq->count = 0;
- seq->from = 0;
- seq->index++;
- LL_SEQ_UNLOCK(seq);
- file->f_pos = csi->csi_startrec;
- return csi->csi_startrec;
+ LASSERT(mdd != NULL);
+ return lfsck_get_windows(m, mdd->mdd_bottom);
}
-static ssize_t mdd_cl_seq_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
+static ssize_t
+mdd_lfsck_async_windows_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct cl_seq_iter *csi = seq->private;
+ struct seq_file *m = file->private_data;
+ struct mdd_device *mdd = m->private;
+ __u32 val;
+ int rc;
- if ((file->f_flags & O_NONBLOCK) && mdd_cl_done(csi))
- return -EAGAIN;
- return seq_read(file, buf, count, ppos);
+ 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 unsigned int mdd_cl_seq_poll(struct file *file, poll_table *wait)
-{ /* based on kmsg_poll */
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct cl_seq_iter *csi = seq->private;
+static int mdd_lfsck_namespace_seq_show(struct seq_file *m, void *data)
+{
+ struct mdd_device *mdd = m->private;
- poll_wait(file, &csi->csi_mdd->mdd_cl.mc_waitq, wait);
- if (!mdd_cl_done(csi))
- return POLLIN | POLLRDNORM;
+ LASSERT(mdd != NULL);
- return 0;
+ return lfsck_dump(m, mdd->mdd_bottom, LFSCK_TYPE_NAMESPACE);
}
+LPROC_SEQ_FOPS_RO(mdd_lfsck_namespace);
-struct file_operations mdd_changelog_fops = {
- .owner = THIS_MODULE,
- .open = mdd_cl_seq_open,
- .read = mdd_cl_seq_read,
- .write = mdd_cl_seq_write,
- .llseek = mdd_cl_seq_lseek,
- .poll = mdd_cl_seq_poll,
- .release = mdd_cl_seq_release,
-};
-
-#ifdef HAVE_QUOTA_SUPPORT
-static int mdd_lprocfs_quota_rd_type(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mdd_lfsck_layout_seq_show(struct seq_file *m, void *data)
{
- struct mdd_device *mdd = data;
- return lprocfs_quota_rd_type(page, start, off, count, eof,
- mdd->mdd_obd_dev);
-}
+ struct mdd_device *mdd = m->private;
-static int mdd_lprocfs_quota_wr_type(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct mdd_device *mdd = data;
- return lprocfs_quota_wr_type(file, buffer, count, mdd->mdd_obd_dev);
+ LASSERT(mdd != NULL);
+
+ return lfsck_dump(m, mdd->mdd_bottom, LFSCK_TYPE_LAYOUT);
}
-#endif
+LPROC_SEQ_FOPS_RO(mdd_lfsck_layout);
static struct lprocfs_vars lprocfs_mdd_obd_vars[] = {
- { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
- { "changelog_mask", lprocfs_rd_cl_mask, lprocfs_wr_cl_mask, 0 },
- { "changelog", 0, lprocfs_wr_cl, 0, &mdd_changelog_fops, 0600 },
-#ifdef HAVE_QUOTA_SUPPORT
- { "quota_type", mdd_lprocfs_quota_rd_type,
- mdd_lprocfs_quota_wr_type, 0 },
-#endif
- { 0 }
-};
-
-static struct lprocfs_vars lprocfs_mdd_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { 0 }
+ { .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 = "changelog_size",
+ .fops = &mdd_changelog_size_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 },
+ { NULL }
};
-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 = mdd2obd_dev(mdd);
+ 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_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