spin_lock_init(&sdp->sd_trunc_lock);
spin_lock_init(&sdp->sd_bitmap_lock);
+ INIT_LIST_HEAD(&sdp->sd_sc_inodes_list);
+
mapping = &sdp->sd_aspace;
address_space_init_once(mapping);
init_rwsem(&sdp->sd_log_flush_lock);
atomic_set(&sdp->sd_log_in_flight, 0);
- atomic_set(&sdp->sd_reserving_log, 0);
- init_waitqueue_head(&sdp->sd_reserving_log_wait);
init_waitqueue_head(&sdp->sd_log_flush_wait);
atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
mutex_init(&sdp->sd_freeze_mutex);
return -EINVAL;
}
- /* If format numbers match exactly, we're done. */
-
- if (sb->sb_fs_format == GFS2_FORMAT_FS &&
- sb->sb_multihost_format == GFS2_FORMAT_MULTI)
- return 0;
+ if (sb->sb_fs_format < GFS2_FS_FORMAT_MIN ||
+ sb->sb_fs_format > GFS2_FS_FORMAT_MAX ||
+ sb->sb_multihost_format != GFS2_FORMAT_MULTI) {
+ fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
+ return -EINVAL;
+ }
- fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
+ if (sb->sb_bsize < 512 || sb->sb_bsize > PAGE_SIZE ||
+ (sb->sb_bsize & (sb->sb_bsize - 1))) {
+ pr_warn("Invalid block size\n");
+ return -EINVAL;
+ }
- return -EINVAL;
+ return 0;
}
static void end_bio_io_page(struct bio *bio)
sizeof(struct gfs2_meta_header))
* GFS2_NBBY; /* not the rgrp bitmap, subsequent bitmaps only */
+ /*
+ * We always keep at least one block reserved for revokes in
+ * transactions. This greatly simplifies allocating additional
+ * revoke blocks.
+ */
+ atomic_set(&sdp->sd_log_revokes_available, sdp->sd_ldptrs);
+
/* Compute maximum reservation required to add a entry to a directory */
hash_blocks = DIV_ROUND_UP(sizeof(u64) * BIT(GFS2_DIR_MAX_DEPTH),
goto out;
}
+ switch(sdp->sd_sb.sb_fs_format) {
+ case GFS2_FS_FORMAT_MAX:
+ sb->s_xattr = gfs2_xattr_handlers_max;
+ break;
+
+ case GFS2_FS_FORMAT_MIN:
+ sb->s_xattr = gfs2_xattr_handlers_min;
+ break;
+
+ default:
+ BUG();
+ }
+
/* Set up the buffer cache and SB for real */
if (sdp->sd_sb.sb_bsize < bdev_logical_block_size(sb->s_bdev)) {
ret = -EINVAL;
return error;
}
+/**
+ * init_statfs - look up and initialize master and local (per node) statfs inodes
+ * @sdp: The GFS2 superblock
+ *
+ * This should be called after the jindex is initialized in init_journal() and
+ * before gfs2_journal_recovery() is called because we need to be able to write
+ * to these inodes during recovery.
+ *
+ * Returns: errno
+ */
+static int init_statfs(struct gfs2_sbd *sdp)
+{
+ int error = 0;
+ struct inode *master = d_inode(sdp->sd_master_dir);
+ struct inode *pn = NULL;
+ char buf[30];
+ struct gfs2_jdesc *jd;
+ struct gfs2_inode *ip;
+
+ sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs");
+ if (IS_ERR(sdp->sd_statfs_inode)) {
+ error = PTR_ERR(sdp->sd_statfs_inode);
+ fs_err(sdp, "can't read in statfs inode: %d\n", error);
+ goto out;
+ }
+ if (sdp->sd_args.ar_spectator)
+ goto out;
+
+ pn = gfs2_lookup_simple(master, "per_node");
+ if (IS_ERR(pn)) {
+ error = PTR_ERR(pn);
+ fs_err(sdp, "can't find per_node directory: %d\n", error);
+ goto put_statfs;
+ }
+
+ /* For each jid, lookup the corresponding local statfs inode in the
+ * per_node metafs directory and save it in the sdp->sd_sc_inodes_list. */
+ list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
+ struct local_statfs_inode *lsi =
+ kmalloc(sizeof(struct local_statfs_inode), GFP_NOFS);
+ if (!lsi) {
+ error = -ENOMEM;
+ goto free_local;
+ }
+ sprintf(buf, "statfs_change%u", jd->jd_jid);
+ lsi->si_sc_inode = gfs2_lookup_simple(pn, buf);
+ if (IS_ERR(lsi->si_sc_inode)) {
+ error = PTR_ERR(lsi->si_sc_inode);
+ fs_err(sdp, "can't find local \"sc\" file#%u: %d\n",
+ jd->jd_jid, error);
+ goto free_local;
+ }
+ lsi->si_jid = jd->jd_jid;
+ if (jd->jd_jid == sdp->sd_jdesc->jd_jid)
+ sdp->sd_sc_inode = lsi->si_sc_inode;
+
+ list_add_tail(&lsi->si_list, &sdp->sd_sc_inodes_list);
+ }
+
+ iput(pn);
+ ip = GFS2_I(sdp->sd_sc_inode);
+ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
+ &sdp->sd_sc_gh);
+ if (error) {
+ fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
+ goto free_local;
+ }
+ return 0;
+
+free_local:
+ free_local_statfs_inodes(sdp);
+ iput(pn);
+put_statfs:
+ iput(sdp->sd_statfs_inode);
+out:
+ return error;
+}
+
+/* Uninitialize and free up memory used by the list of statfs inodes */
+static void uninit_statfs(struct gfs2_sbd *sdp)
+{
+ if (!sdp->sd_args.ar_spectator) {
+ gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
+ free_local_statfs_inodes(sdp);
+ }
+ iput(sdp->sd_statfs_inode);
+}
+
static int init_journal(struct gfs2_sbd *sdp, int undo)
{
struct inode *master = d_inode(sdp->sd_master_dir);
if (undo) {
jindex = 0;
- goto fail_jinode_gh;
+ goto fail_statfs;
}
sdp->sd_jindex = gfs2_lookup_simple(master, "jindex");
}
trace_gfs2_log_blocks(sdp, atomic_read(&sdp->sd_log_blks_free));
+ /* Lookup statfs inodes here so journal recovery can use them. */
+ error = init_statfs(sdp);
+ if (error)
+ goto fail_jinode_gh;
+
if (sdp->sd_lockstruct.ls_first) {
unsigned int x;
for (x = 0; x < sdp->sd_journals; x++) {
if (sdp->sd_args.ar_spectator) {
error = check_journal_clean(sdp, jd, true);
if (error)
- goto fail_jinode_gh;
+ goto fail_statfs;
continue;
}
error = gfs2_recover_journal(jd, true);
if (error) {
fs_err(sdp, "error recovering journal %u: %d\n",
x, error);
- goto fail_jinode_gh;
+ goto fail_statfs;
}
}
error = gfs2_recover_journal(sdp->sd_jdesc, true);
if (error) {
fs_err(sdp, "error recovering my journal: %d\n", error);
- goto fail_jinode_gh;
+ goto fail_statfs;
}
}
INIT_WORK(&sdp->sd_freeze_work, gfs2_freeze_func);
return 0;
+fail_statfs:
+ uninit_statfs(sdp);
fail_jinode_gh:
/* A withdraw may have done dq/uninit so now we need to check it */
if (!sdp->sd_args.ar_spectator &&
if (error)
goto fail;
- /* Read in the master statfs inode */
- sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs");
- if (IS_ERR(sdp->sd_statfs_inode)) {
- error = PTR_ERR(sdp->sd_statfs_inode);
- fs_err(sdp, "can't read in statfs inode: %d\n", error);
- goto fail_journal;
- }
-
/* Read in the resource index inode */
sdp->sd_rindex = gfs2_lookup_simple(master, "rindex");
if (IS_ERR(sdp->sd_rindex)) {
error = PTR_ERR(sdp->sd_rindex);
fs_err(sdp, "can't get resource index inode: %d\n", error);
- goto fail_statfs;
+ goto fail_journal;
}
sdp->sd_rindex_uptodate = 0;
fail_rindex:
gfs2_clear_rgrpd(sdp);
iput(sdp->sd_rindex);
-fail_statfs:
- iput(sdp->sd_statfs_inode);
fail_journal:
init_journal(sdp, UNDO);
fail:
return error;
}
- sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid);
- sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf);
- if (IS_ERR(sdp->sd_sc_inode)) {
- error = PTR_ERR(sdp->sd_sc_inode);
- fs_err(sdp, "can't find local \"sc\" file: %d\n", error);
- goto fail;
- }
-
sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid);
sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf);
if (IS_ERR(sdp->sd_qc_inode)) {
iput(pn);
pn = NULL;
- ip = GFS2_I(sdp->sd_sc_inode);
- error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
- &sdp->sd_sc_gh);
- if (error) {
- fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
- goto fail_qc_i;
- }
-
ip = GFS2_I(sdp->sd_qc_inode);
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
&sdp->sd_qc_gh);
if (error) {
fs_err(sdp, "can't lock local \"qc\" file: %d\n", error);
- goto fail_ut_gh;
+ goto fail_qc_i;
}
return 0;
fail_qc_gh:
gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
-fail_ut_gh:
- gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
fail_qc_i:
iput(sdp->sd_qc_inode);
fail_ut_i:
- iput(sdp->sd_sc_inode);
-fail:
iput(pn);
return error;
}
}
if (lm->lm_mount == NULL) {
- fs_info(sdp, "Now mounting FS...\n");
+ fs_info(sdp, "Now mounting FS (format %u)...\n", sdp->sd_sb.sb_fs_format);
complete_all(&sdp->sd_locking_init);
return 0;
}
ret = lm->lm_mount(sdp, table);
if (ret == 0)
- fs_info(sdp, "Joined cluster. Now mounting FS...\n");
+ fs_info(sdp, "Joined cluster. Now mounting FS (format %u)...\n",
+ sdp->sd_sb.sb_fs_format);
complete_all(&sdp->sd_locking_init);
return ret;
}
int silent = fc->sb_flags & SB_SILENT;
struct gfs2_sbd *sdp;
struct gfs2_holder mount_gh;
+ struct gfs2_holder freeze_gh;
int error;
sdp = init_sbd(sb);
sb->s_op = &gfs2_super_ops;
sb->s_d_op = &gfs2_dops;
sb->s_export_op = &gfs2_export_ops;
- sb->s_xattr = gfs2_xattr_handlers;
sb->s_qcop = &gfs2_quotactl_ops;
sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
}
error = init_names(sdp, silent);
- if (error) {
- /* In this case, we haven't initialized sysfs, so we have to
- manually free the sdp. */
- free_sbd(sdp);
- sb->s_fs_info = NULL;
- return error;
- }
+ if (error)
+ goto fail_free;
snprintf(sdp->sd_fsname, sizeof(sdp->sd_fsname), "%s", sdp->sd_table_name);
error = gfs2_sys_fs_add(sdp);
- /*
- * If we hit an error here, gfs2_sys_fs_add will have called function
- * kobject_put which causes the sysfs usage count to go to zero, which
- * causes sysfs to call function gfs2_sbd_release, which frees sdp.
- * Subsequent error paths here will call gfs2_sys_fs_del, which also
- * kobject_put to free sdp.
- */
if (error)
- return error;
+ goto fail_free;
gfs2_create_debugfs_file(sdp);
if (error)
goto fail_locking;
+ /* Turn rgrplvb on by default if fs format is recent enough */
+ if (!sdp->sd_args.ar_got_rgrplvb && sdp->sd_sb.sb_fs_format > 1801)
+ sdp->sd_args.ar_rgrplvb = 1;
+
error = wait_on_journal(sdp);
if (error)
goto fail_sb;
goto fail_per_node;
}
- if (sb_rdonly(sb)) {
- struct gfs2_holder freeze_gh;
+ error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
+ if (error)
+ goto fail_per_node;
- error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,
- LM_FLAG_NOEXP | GL_EXACT,
- &freeze_gh);
- if (error) {
- fs_err(sdp, "can't make FS RO: %d\n", error);
- goto fail_per_node;
- }
- gfs2_glock_dq_uninit(&freeze_gh);
- } else {
+ if (!sb_rdonly(sb))
error = gfs2_make_fs_rw(sdp);
- if (error) {
- fs_err(sdp, "can't make FS RW: %d\n", error);
- goto fail_per_node;
- }
- }
+ gfs2_freeze_unlock(&freeze_gh);
+ if (error) {
+ fs_err(sdp, "can't make FS RW: %d\n", error);
+ goto fail_per_node;
+ }
gfs2_glock_dq_uninit(&mount_gh);
gfs2_online_uevent(sdp);
return 0;
gfs2_lm_unmount(sdp);
fail_debug:
gfs2_delete_debugfs_file(sdp);
- /* gfs2_sys_fs_del must be the last thing we do, since it causes
- * sysfs to call function gfs2_sbd_release, which frees sdp. */
gfs2_sys_fs_del(sdp);
+fail_free:
+ free_sbd(sdp);
sb->s_fs_info = NULL;
return error;
}
break;
case Opt_rgrplvb:
args->ar_rgrplvb = result.boolean;
+ args->ar_got_rgrplvb = 1;
break;
case Opt_loccookie:
args->ar_loccookie = result.boolean;
fc->sb_flags |= SB_RDONLY;
if ((sb->s_flags ^ fc->sb_flags) & SB_RDONLY) {
+ struct gfs2_holder freeze_gh;
+
+ error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
+ if (error)
+ return -EINVAL;
+
if (fc->sb_flags & SB_RDONLY) {
error = gfs2_make_fs_ro(sdp);
if (error)
if (error)
errorfc(fc, "unable to remount read-write");
}
+ gfs2_freeze_unlock(&freeze_gh);
}
sdp->sd_args = *newargs;
projects / linux-2.6-microblaze.git / blobdiff