mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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bcachefs: sb-clean.c
Pull code for bch_sb_field_clean out into its own file. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
parent
0ec3985694
commit
a37ad1a3ab
@ -64,6 +64,7 @@ bcachefs-y := \
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recovery.o \
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reflink.o \
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replicas.o \
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sb-clean.o \
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sb-members.o \
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siphash.o \
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six.o \
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@ -14,6 +14,7 @@
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#include "journal_reclaim.h"
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#include "journal_seq_blacklist.h"
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#include "replicas.h"
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#include "sb-clean.h"
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#include "trace.h"
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static struct nonce journal_nonce(const struct jset *jset)
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@ -23,6 +23,7 @@
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#include "quota.h"
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#include "recovery.h"
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#include "replicas.h"
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#include "sb-clean.h"
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#include "subvolume.h"
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#include "super-io.h"
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@ -846,134 +847,6 @@ static int journal_replay_early(struct bch_fs *c,
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/* sb clean section: */
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static struct bkey_i *btree_root_find(struct bch_fs *c,
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struct bch_sb_field_clean *clean,
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struct jset *j,
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enum btree_id id, unsigned *level)
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{
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struct bkey_i *k;
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struct jset_entry *entry, *start, *end;
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if (clean) {
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start = clean->start;
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end = vstruct_end(&clean->field);
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} else {
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start = j->start;
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end = vstruct_last(j);
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}
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for (entry = start; entry < end; entry = vstruct_next(entry))
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if (entry->type == BCH_JSET_ENTRY_btree_root &&
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entry->btree_id == id)
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goto found;
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return NULL;
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found:
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if (!entry->u64s)
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return ERR_PTR(-EINVAL);
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k = entry->start;
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*level = entry->level;
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return k;
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}
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static int verify_superblock_clean(struct bch_fs *c,
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struct bch_sb_field_clean **cleanp,
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struct jset *j)
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{
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unsigned i;
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struct bch_sb_field_clean *clean = *cleanp;
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struct printbuf buf1 = PRINTBUF;
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struct printbuf buf2 = PRINTBUF;
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int ret = 0;
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if (mustfix_fsck_err_on(j->seq != clean->journal_seq, c,
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"superblock journal seq (%llu) doesn't match journal (%llu) after clean shutdown",
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le64_to_cpu(clean->journal_seq),
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le64_to_cpu(j->seq))) {
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kfree(clean);
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*cleanp = NULL;
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return 0;
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}
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for (i = 0; i < BTREE_ID_NR; i++) {
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struct bkey_i *k1, *k2;
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unsigned l1 = 0, l2 = 0;
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k1 = btree_root_find(c, clean, NULL, i, &l1);
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k2 = btree_root_find(c, NULL, j, i, &l2);
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if (!k1 && !k2)
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continue;
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printbuf_reset(&buf1);
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printbuf_reset(&buf2);
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if (k1)
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bch2_bkey_val_to_text(&buf1, c, bkey_i_to_s_c(k1));
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else
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prt_printf(&buf1, "(none)");
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if (k2)
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bch2_bkey_val_to_text(&buf2, c, bkey_i_to_s_c(k2));
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else
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prt_printf(&buf2, "(none)");
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mustfix_fsck_err_on(!k1 || !k2 ||
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IS_ERR(k1) ||
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IS_ERR(k2) ||
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k1->k.u64s != k2->k.u64s ||
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memcmp(k1, k2, bkey_bytes(&k1->k)) ||
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l1 != l2, c,
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"superblock btree root %u doesn't match journal after clean shutdown\n"
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"sb: l=%u %s\n"
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"journal: l=%u %s\n", i,
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l1, buf1.buf,
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l2, buf2.buf);
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}
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fsck_err:
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printbuf_exit(&buf2);
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printbuf_exit(&buf1);
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return ret;
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}
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static struct bch_sb_field_clean *read_superblock_clean(struct bch_fs *c)
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{
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struct bch_sb_field_clean *clean, *sb_clean;
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int ret;
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mutex_lock(&c->sb_lock);
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sb_clean = bch2_sb_get_clean(c->disk_sb.sb);
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if (fsck_err_on(!sb_clean, c,
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"superblock marked clean but clean section not present")) {
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SET_BCH_SB_CLEAN(c->disk_sb.sb, false);
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c->sb.clean = false;
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mutex_unlock(&c->sb_lock);
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return NULL;
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}
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clean = kmemdup(sb_clean, vstruct_bytes(&sb_clean->field),
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GFP_KERNEL);
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if (!clean) {
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mutex_unlock(&c->sb_lock);
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return ERR_PTR(-BCH_ERR_ENOMEM_read_superblock_clean);
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}
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ret = bch2_sb_clean_validate_late(c, clean, READ);
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if (ret) {
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mutex_unlock(&c->sb_lock);
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return ERR_PTR(ret);
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}
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mutex_unlock(&c->sb_lock);
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return clean;
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fsck_err:
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mutex_unlock(&c->sb_lock);
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return ERR_PTR(ret);
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}
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static bool btree_id_is_alloc(enum btree_id id)
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{
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switch (id) {
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@ -1297,17 +1170,17 @@ int bch2_fs_recovery(struct bch_fs *c)
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bool write_sb = false;
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int ret = 0;
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if (c->sb.clean)
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clean = read_superblock_clean(c);
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ret = PTR_ERR_OR_ZERO(clean);
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if (ret)
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goto err;
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if (c->sb.clean) {
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clean = bch2_read_superblock_clean(c);
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ret = PTR_ERR_OR_ZERO(clean);
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if (ret)
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goto err;
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if (c->sb.clean)
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bch_info(c, "recovering from clean shutdown, journal seq %llu",
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le64_to_cpu(clean->journal_seq));
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else
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} else {
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bch_info(c, "recovering from unclean shutdown");
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}
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if (!(c->sb.features & (1ULL << BCH_FEATURE_new_extent_overwrite))) {
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bch_err(c, "feature new_extent_overwrite not set, filesystem no longer supported");
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@ -1386,7 +1259,7 @@ int bch2_fs_recovery(struct bch_fs *c)
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goto err;
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if (c->sb.clean && last_journal_entry) {
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ret = verify_superblock_clean(c, &clean,
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ret = bch2_verify_superblock_clean(c, &clean,
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last_journal_entry);
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if (ret)
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goto err;
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395
fs/bcachefs/sb-clean.c
Normal file
395
fs/bcachefs/sb-clean.c
Normal file
@ -0,0 +1,395 @@
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// SPDX-License-Identifier: GPL-2.0
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#include "bcachefs.h"
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#include "btree_update_interior.h"
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#include "buckets.h"
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#include "error.h"
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#include "journal_io.h"
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#include "replicas.h"
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#include "sb-clean.h"
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#include "super-io.h"
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/*
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* BCH_SB_FIELD_clean:
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*
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* Btree roots, and a few other things, are recovered from the journal after an
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* unclean shutdown - but after a clean shutdown, to avoid having to read the
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* journal, we can store them in the superblock.
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*
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* bch_sb_field_clean simply contains a list of journal entries, stored exactly
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* as they would be in the journal:
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*/
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int bch2_sb_clean_validate_late(struct bch_fs *c, struct bch_sb_field_clean *clean,
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int write)
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{
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struct jset_entry *entry;
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int ret;
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for (entry = clean->start;
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entry < (struct jset_entry *) vstruct_end(&clean->field);
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entry = vstruct_next(entry)) {
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ret = bch2_journal_entry_validate(c, NULL, entry,
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le16_to_cpu(c->disk_sb.sb->version),
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BCH_SB_BIG_ENDIAN(c->disk_sb.sb),
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write);
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if (ret)
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return ret;
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}
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return 0;
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}
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static struct bkey_i *btree_root_find(struct bch_fs *c,
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struct bch_sb_field_clean *clean,
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struct jset *j,
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enum btree_id id, unsigned *level)
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{
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struct bkey_i *k;
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struct jset_entry *entry, *start, *end;
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if (clean) {
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start = clean->start;
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end = vstruct_end(&clean->field);
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} else {
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start = j->start;
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end = vstruct_last(j);
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}
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for (entry = start; entry < end; entry = vstruct_next(entry))
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if (entry->type == BCH_JSET_ENTRY_btree_root &&
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entry->btree_id == id)
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goto found;
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return NULL;
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found:
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if (!entry->u64s)
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return ERR_PTR(-EINVAL);
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k = entry->start;
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*level = entry->level;
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return k;
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}
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int bch2_verify_superblock_clean(struct bch_fs *c,
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struct bch_sb_field_clean **cleanp,
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struct jset *j)
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{
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unsigned i;
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struct bch_sb_field_clean *clean = *cleanp;
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struct printbuf buf1 = PRINTBUF;
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struct printbuf buf2 = PRINTBUF;
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int ret = 0;
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if (mustfix_fsck_err_on(j->seq != clean->journal_seq, c,
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"superblock journal seq (%llu) doesn't match journal (%llu) after clean shutdown",
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le64_to_cpu(clean->journal_seq),
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le64_to_cpu(j->seq))) {
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kfree(clean);
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*cleanp = NULL;
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return 0;
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}
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for (i = 0; i < BTREE_ID_NR; i++) {
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struct bkey_i *k1, *k2;
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unsigned l1 = 0, l2 = 0;
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k1 = btree_root_find(c, clean, NULL, i, &l1);
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k2 = btree_root_find(c, NULL, j, i, &l2);
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if (!k1 && !k2)
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continue;
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printbuf_reset(&buf1);
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printbuf_reset(&buf2);
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if (k1)
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bch2_bkey_val_to_text(&buf1, c, bkey_i_to_s_c(k1));
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else
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prt_printf(&buf1, "(none)");
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if (k2)
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bch2_bkey_val_to_text(&buf2, c, bkey_i_to_s_c(k2));
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else
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prt_printf(&buf2, "(none)");
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mustfix_fsck_err_on(!k1 || !k2 ||
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IS_ERR(k1) ||
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IS_ERR(k2) ||
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k1->k.u64s != k2->k.u64s ||
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memcmp(k1, k2, bkey_bytes(&k1->k)) ||
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l1 != l2, c,
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"superblock btree root %u doesn't match journal after clean shutdown\n"
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"sb: l=%u %s\n"
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"journal: l=%u %s\n", i,
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l1, buf1.buf,
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l2, buf2.buf);
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}
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fsck_err:
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printbuf_exit(&buf2);
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printbuf_exit(&buf1);
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return ret;
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}
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struct bch_sb_field_clean *bch2_read_superblock_clean(struct bch_fs *c)
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{
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struct bch_sb_field_clean *clean, *sb_clean;
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int ret;
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mutex_lock(&c->sb_lock);
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sb_clean = bch2_sb_get_clean(c->disk_sb.sb);
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if (fsck_err_on(!sb_clean, c,
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"superblock marked clean but clean section not present")) {
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SET_BCH_SB_CLEAN(c->disk_sb.sb, false);
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c->sb.clean = false;
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mutex_unlock(&c->sb_lock);
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return NULL;
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}
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clean = kmemdup(sb_clean, vstruct_bytes(&sb_clean->field),
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GFP_KERNEL);
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if (!clean) {
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mutex_unlock(&c->sb_lock);
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return ERR_PTR(-BCH_ERR_ENOMEM_read_superblock_clean);
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}
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ret = bch2_sb_clean_validate_late(c, clean, READ);
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if (ret) {
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mutex_unlock(&c->sb_lock);
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return ERR_PTR(ret);
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}
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mutex_unlock(&c->sb_lock);
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return clean;
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fsck_err:
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mutex_unlock(&c->sb_lock);
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return ERR_PTR(ret);
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}
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static struct jset_entry *jset_entry_init(struct jset_entry **end, size_t size)
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{
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struct jset_entry *entry = *end;
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unsigned u64s = DIV_ROUND_UP(size, sizeof(u64));
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memset(entry, 0, u64s * sizeof(u64));
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/*
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* The u64s field counts from the start of data, ignoring the shared
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* fields.
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*/
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entry->u64s = cpu_to_le16(u64s - 1);
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*end = vstruct_next(*end);
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return entry;
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}
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void bch2_journal_super_entries_add_common(struct bch_fs *c,
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struct jset_entry **end,
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u64 journal_seq)
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{
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struct bch_dev *ca;
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unsigned i, dev;
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percpu_down_read(&c->mark_lock);
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if (!journal_seq) {
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for (i = 0; i < ARRAY_SIZE(c->usage); i++)
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bch2_fs_usage_acc_to_base(c, i);
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} else {
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bch2_fs_usage_acc_to_base(c, journal_seq & JOURNAL_BUF_MASK);
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}
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{
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struct jset_entry_usage *u =
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container_of(jset_entry_init(end, sizeof(*u)),
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struct jset_entry_usage, entry);
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u->entry.type = BCH_JSET_ENTRY_usage;
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u->entry.btree_id = BCH_FS_USAGE_inodes;
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u->v = cpu_to_le64(c->usage_base->nr_inodes);
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}
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{
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struct jset_entry_usage *u =
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container_of(jset_entry_init(end, sizeof(*u)),
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struct jset_entry_usage, entry);
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u->entry.type = BCH_JSET_ENTRY_usage;
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u->entry.btree_id = BCH_FS_USAGE_key_version;
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u->v = cpu_to_le64(atomic64_read(&c->key_version));
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}
|
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|
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for (i = 0; i < BCH_REPLICAS_MAX; i++) {
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struct jset_entry_usage *u =
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container_of(jset_entry_init(end, sizeof(*u)),
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struct jset_entry_usage, entry);
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u->entry.type = BCH_JSET_ENTRY_usage;
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u->entry.btree_id = BCH_FS_USAGE_reserved;
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u->entry.level = i;
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u->v = cpu_to_le64(c->usage_base->persistent_reserved[i]);
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}
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for (i = 0; i < c->replicas.nr; i++) {
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struct bch_replicas_entry *e =
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cpu_replicas_entry(&c->replicas, i);
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struct jset_entry_data_usage *u =
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container_of(jset_entry_init(end, sizeof(*u) + e->nr_devs),
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struct jset_entry_data_usage, entry);
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u->entry.type = BCH_JSET_ENTRY_data_usage;
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u->v = cpu_to_le64(c->usage_base->replicas[i]);
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unsafe_memcpy(&u->r, e, replicas_entry_bytes(e),
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"embedded variable length struct");
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}
|
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|
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for_each_member_device(ca, c, dev) {
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unsigned b = sizeof(struct jset_entry_dev_usage) +
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sizeof(struct jset_entry_dev_usage_type) * BCH_DATA_NR;
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struct jset_entry_dev_usage *u =
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container_of(jset_entry_init(end, b),
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struct jset_entry_dev_usage, entry);
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u->entry.type = BCH_JSET_ENTRY_dev_usage;
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u->dev = cpu_to_le32(dev);
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u->buckets_ec = cpu_to_le64(ca->usage_base->buckets_ec);
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|
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for (i = 0; i < BCH_DATA_NR; i++) {
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u->d[i].buckets = cpu_to_le64(ca->usage_base->d[i].buckets);
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u->d[i].sectors = cpu_to_le64(ca->usage_base->d[i].sectors);
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u->d[i].fragmented = cpu_to_le64(ca->usage_base->d[i].fragmented);
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}
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}
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percpu_up_read(&c->mark_lock);
|
||||
|
||||
for (i = 0; i < 2; i++) {
|
||||
struct jset_entry_clock *clock =
|
||||
container_of(jset_entry_init(end, sizeof(*clock)),
|
||||
struct jset_entry_clock, entry);
|
||||
|
||||
clock->entry.type = BCH_JSET_ENTRY_clock;
|
||||
clock->rw = i;
|
||||
clock->time = cpu_to_le64(atomic64_read(&c->io_clock[i].now));
|
||||
}
|
||||
}
|
||||
|
||||
static int bch2_sb_clean_validate(struct bch_sb *sb,
|
||||
struct bch_sb_field *f,
|
||||
struct printbuf *err)
|
||||
{
|
||||
struct bch_sb_field_clean *clean = field_to_type(f, clean);
|
||||
|
||||
if (vstruct_bytes(&clean->field) < sizeof(*clean)) {
|
||||
prt_printf(err, "wrong size (got %zu should be %zu)",
|
||||
vstruct_bytes(&clean->field), sizeof(*clean));
|
||||
return -BCH_ERR_invalid_sb_clean;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void bch2_sb_clean_to_text(struct printbuf *out, struct bch_sb *sb,
|
||||
struct bch_sb_field *f)
|
||||
{
|
||||
struct bch_sb_field_clean *clean = field_to_type(f, clean);
|
||||
struct jset_entry *entry;
|
||||
|
||||
prt_printf(out, "flags: %x", le32_to_cpu(clean->flags));
|
||||
prt_newline(out);
|
||||
prt_printf(out, "journal_seq: %llu", le64_to_cpu(clean->journal_seq));
|
||||
prt_newline(out);
|
||||
|
||||
for (entry = clean->start;
|
||||
entry != vstruct_end(&clean->field);
|
||||
entry = vstruct_next(entry)) {
|
||||
if (entry->type == BCH_JSET_ENTRY_btree_keys &&
|
||||
!entry->u64s)
|
||||
continue;
|
||||
|
||||
bch2_journal_entry_to_text(out, NULL, entry);
|
||||
prt_newline(out);
|
||||
}
|
||||
}
|
||||
|
||||
const struct bch_sb_field_ops bch_sb_field_ops_clean = {
|
||||
.validate = bch2_sb_clean_validate,
|
||||
.to_text = bch2_sb_clean_to_text,
|
||||
};
|
||||
|
||||
int bch2_fs_mark_dirty(struct bch_fs *c)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* Unconditionally write superblock, to verify it hasn't changed before
|
||||
* we go rw:
|
||||
*/
|
||||
|
||||
mutex_lock(&c->sb_lock);
|
||||
SET_BCH_SB_CLEAN(c->disk_sb.sb, false);
|
||||
|
||||
bch2_sb_maybe_downgrade(c);
|
||||
c->disk_sb.sb->features[0] |= cpu_to_le64(BCH_SB_FEATURES_ALWAYS);
|
||||
|
||||
ret = bch2_write_super(c);
|
||||
mutex_unlock(&c->sb_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
void bch2_fs_mark_clean(struct bch_fs *c)
|
||||
{
|
||||
struct bch_sb_field_clean *sb_clean;
|
||||
struct jset_entry *entry;
|
||||
unsigned u64s;
|
||||
int ret;
|
||||
|
||||
mutex_lock(&c->sb_lock);
|
||||
if (BCH_SB_CLEAN(c->disk_sb.sb))
|
||||
goto out;
|
||||
|
||||
SET_BCH_SB_CLEAN(c->disk_sb.sb, true);
|
||||
|
||||
c->disk_sb.sb->compat[0] |= cpu_to_le64(1ULL << BCH_COMPAT_alloc_info);
|
||||
c->disk_sb.sb->compat[0] |= cpu_to_le64(1ULL << BCH_COMPAT_alloc_metadata);
|
||||
c->disk_sb.sb->features[0] &= cpu_to_le64(~(1ULL << BCH_FEATURE_extents_above_btree_updates));
|
||||
c->disk_sb.sb->features[0] &= cpu_to_le64(~(1ULL << BCH_FEATURE_btree_updates_journalled));
|
||||
|
||||
u64s = sizeof(*sb_clean) / sizeof(u64) + c->journal.entry_u64s_reserved;
|
||||
|
||||
sb_clean = bch2_sb_resize_clean(&c->disk_sb, u64s);
|
||||
if (!sb_clean) {
|
||||
bch_err(c, "error resizing superblock while setting filesystem clean");
|
||||
goto out;
|
||||
}
|
||||
|
||||
sb_clean->flags = 0;
|
||||
sb_clean->journal_seq = cpu_to_le64(atomic64_read(&c->journal.seq));
|
||||
|
||||
/* Trying to catch outstanding bug: */
|
||||
BUG_ON(le64_to_cpu(sb_clean->journal_seq) > S64_MAX);
|
||||
|
||||
entry = sb_clean->start;
|
||||
bch2_journal_super_entries_add_common(c, &entry, 0);
|
||||
entry = bch2_btree_roots_to_journal_entries(c, entry, entry);
|
||||
BUG_ON((void *) entry > vstruct_end(&sb_clean->field));
|
||||
|
||||
memset(entry, 0,
|
||||
vstruct_end(&sb_clean->field) - (void *) entry);
|
||||
|
||||
/*
|
||||
* this should be in the write path, and we should be validating every
|
||||
* superblock section:
|
||||
*/
|
||||
ret = bch2_sb_clean_validate_late(c, sb_clean, WRITE);
|
||||
if (ret) {
|
||||
bch_err(c, "error writing marking filesystem clean: validate error");
|
||||
goto out;
|
||||
}
|
||||
|
||||
bch2_write_super(c);
|
||||
out:
|
||||
mutex_unlock(&c->sb_lock);
|
||||
}
|
||||
16
fs/bcachefs/sb-clean.h
Normal file
16
fs/bcachefs/sb-clean.h
Normal file
@ -0,0 +1,16 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
#ifndef _BCACHEFS_SB_CLEAN_H
|
||||
#define _BCACHEFS_SB_CLEAN_H
|
||||
|
||||
int bch2_sb_clean_validate_late(struct bch_fs *, struct bch_sb_field_clean *, int);
|
||||
int bch2_verify_superblock_clean(struct bch_fs *, struct bch_sb_field_clean **,
|
||||
struct jset *);
|
||||
struct bch_sb_field_clean *bch2_read_superblock_clean(struct bch_fs *);
|
||||
void bch2_journal_super_entries_add_common(struct bch_fs *, struct jset_entry **, u64);
|
||||
|
||||
extern const struct bch_sb_field_ops bch_sb_field_ops_clean;
|
||||
|
||||
int bch2_fs_mark_dirty(struct bch_fs *);
|
||||
void bch2_fs_mark_clean(struct bch_fs *);
|
||||
|
||||
#endif /* _BCACHEFS_SB_CLEAN_H */
|
||||
@ -1,8 +1,6 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
#include "bcachefs.h"
|
||||
#include "btree_update_interior.h"
|
||||
#include "buckets.h"
|
||||
#include "checksum.h"
|
||||
#include "counters.h"
|
||||
#include "disk_groups.h"
|
||||
@ -10,12 +8,12 @@
|
||||
#include "error.h"
|
||||
#include "io.h"
|
||||
#include "journal.h"
|
||||
#include "journal_io.h"
|
||||
#include "journal_sb.h"
|
||||
#include "journal_seq_blacklist.h"
|
||||
#include "recovery.h"
|
||||
#include "replicas.h"
|
||||
#include "quota.h"
|
||||
#include "sb-clean.h"
|
||||
#include "sb-members.h"
|
||||
#include "super-io.h"
|
||||
#include "super.h"
|
||||
@ -1016,27 +1014,6 @@ void __bch2_check_set_feature(struct bch_fs *c, unsigned feat)
|
||||
mutex_unlock(&c->sb_lock);
|
||||
}
|
||||
|
||||
/* BCH_SB_FIELD_clean: */
|
||||
|
||||
int bch2_sb_clean_validate_late(struct bch_fs *c, struct bch_sb_field_clean *clean, int write)
|
||||
{
|
||||
struct jset_entry *entry;
|
||||
int ret;
|
||||
|
||||
for (entry = clean->start;
|
||||
entry < (struct jset_entry *) vstruct_end(&clean->field);
|
||||
entry = vstruct_next(entry)) {
|
||||
ret = bch2_journal_entry_validate(c, NULL, entry,
|
||||
le16_to_cpu(c->disk_sb.sb->version),
|
||||
BCH_SB_BIG_ENDIAN(c->disk_sb.sb),
|
||||
write);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Downgrade if superblock is at a higher version than currently supported: */
|
||||
void bch2_sb_maybe_downgrade(struct bch_fs *c)
|
||||
{
|
||||
@ -1063,232 +1040,6 @@ void bch2_sb_upgrade(struct bch_fs *c, unsigned new_version)
|
||||
c->disk_sb.sb->features[0] |= cpu_to_le64(BCH_SB_FEATURES_ALL);
|
||||
}
|
||||
|
||||
int bch2_fs_mark_dirty(struct bch_fs *c)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* Unconditionally write superblock, to verify it hasn't changed before
|
||||
* we go rw:
|
||||
*/
|
||||
|
||||
mutex_lock(&c->sb_lock);
|
||||
SET_BCH_SB_CLEAN(c->disk_sb.sb, false);
|
||||
|
||||
bch2_sb_maybe_downgrade(c);
|
||||
c->disk_sb.sb->features[0] |= cpu_to_le64(BCH_SB_FEATURES_ALWAYS);
|
||||
|
||||
ret = bch2_write_super(c);
|
||||
mutex_unlock(&c->sb_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct jset_entry *jset_entry_init(struct jset_entry **end, size_t size)
|
||||
{
|
||||
struct jset_entry *entry = *end;
|
||||
unsigned u64s = DIV_ROUND_UP(size, sizeof(u64));
|
||||
|
||||
memset(entry, 0, u64s * sizeof(u64));
|
||||
/*
|
||||
* The u64s field counts from the start of data, ignoring the shared
|
||||
* fields.
|
||||
*/
|
||||
entry->u64s = cpu_to_le16(u64s - 1);
|
||||
|
||||
*end = vstruct_next(*end);
|
||||
return entry;
|
||||
}
|
||||
|
||||
void bch2_journal_super_entries_add_common(struct bch_fs *c,
|
||||
struct jset_entry **end,
|
||||
u64 journal_seq)
|
||||
{
|
||||
struct bch_dev *ca;
|
||||
unsigned i, dev;
|
||||
|
||||
percpu_down_read(&c->mark_lock);
|
||||
|
||||
if (!journal_seq) {
|
||||
for (i = 0; i < ARRAY_SIZE(c->usage); i++)
|
||||
bch2_fs_usage_acc_to_base(c, i);
|
||||
} else {
|
||||
bch2_fs_usage_acc_to_base(c, journal_seq & JOURNAL_BUF_MASK);
|
||||
}
|
||||
|
||||
{
|
||||
struct jset_entry_usage *u =
|
||||
container_of(jset_entry_init(end, sizeof(*u)),
|
||||
struct jset_entry_usage, entry);
|
||||
|
||||
u->entry.type = BCH_JSET_ENTRY_usage;
|
||||
u->entry.btree_id = BCH_FS_USAGE_inodes;
|
||||
u->v = cpu_to_le64(c->usage_base->nr_inodes);
|
||||
}
|
||||
|
||||
{
|
||||
struct jset_entry_usage *u =
|
||||
container_of(jset_entry_init(end, sizeof(*u)),
|
||||
struct jset_entry_usage, entry);
|
||||
|
||||
u->entry.type = BCH_JSET_ENTRY_usage;
|
||||
u->entry.btree_id = BCH_FS_USAGE_key_version;
|
||||
u->v = cpu_to_le64(atomic64_read(&c->key_version));
|
||||
}
|
||||
|
||||
for (i = 0; i < BCH_REPLICAS_MAX; i++) {
|
||||
struct jset_entry_usage *u =
|
||||
container_of(jset_entry_init(end, sizeof(*u)),
|
||||
struct jset_entry_usage, entry);
|
||||
|
||||
u->entry.type = BCH_JSET_ENTRY_usage;
|
||||
u->entry.btree_id = BCH_FS_USAGE_reserved;
|
||||
u->entry.level = i;
|
||||
u->v = cpu_to_le64(c->usage_base->persistent_reserved[i]);
|
||||
}
|
||||
|
||||
for (i = 0; i < c->replicas.nr; i++) {
|
||||
struct bch_replicas_entry *e =
|
||||
cpu_replicas_entry(&c->replicas, i);
|
||||
struct jset_entry_data_usage *u =
|
||||
container_of(jset_entry_init(end, sizeof(*u) + e->nr_devs),
|
||||
struct jset_entry_data_usage, entry);
|
||||
|
||||
u->entry.type = BCH_JSET_ENTRY_data_usage;
|
||||
u->v = cpu_to_le64(c->usage_base->replicas[i]);
|
||||
unsafe_memcpy(&u->r, e, replicas_entry_bytes(e),
|
||||
"embedded variable length struct");
|
||||
}
|
||||
|
||||
for_each_member_device(ca, c, dev) {
|
||||
unsigned b = sizeof(struct jset_entry_dev_usage) +
|
||||
sizeof(struct jset_entry_dev_usage_type) * BCH_DATA_NR;
|
||||
struct jset_entry_dev_usage *u =
|
||||
container_of(jset_entry_init(end, b),
|
||||
struct jset_entry_dev_usage, entry);
|
||||
|
||||
u->entry.type = BCH_JSET_ENTRY_dev_usage;
|
||||
u->dev = cpu_to_le32(dev);
|
||||
u->buckets_ec = cpu_to_le64(ca->usage_base->buckets_ec);
|
||||
|
||||
for (i = 0; i < BCH_DATA_NR; i++) {
|
||||
u->d[i].buckets = cpu_to_le64(ca->usage_base->d[i].buckets);
|
||||
u->d[i].sectors = cpu_to_le64(ca->usage_base->d[i].sectors);
|
||||
u->d[i].fragmented = cpu_to_le64(ca->usage_base->d[i].fragmented);
|
||||
}
|
||||
}
|
||||
|
||||
percpu_up_read(&c->mark_lock);
|
||||
|
||||
for (i = 0; i < 2; i++) {
|
||||
struct jset_entry_clock *clock =
|
||||
container_of(jset_entry_init(end, sizeof(*clock)),
|
||||
struct jset_entry_clock, entry);
|
||||
|
||||
clock->entry.type = BCH_JSET_ENTRY_clock;
|
||||
clock->rw = i;
|
||||
clock->time = cpu_to_le64(atomic64_read(&c->io_clock[i].now));
|
||||
}
|
||||
}
|
||||
|
||||
void bch2_fs_mark_clean(struct bch_fs *c)
|
||||
{
|
||||
struct bch_sb_field_clean *sb_clean;
|
||||
struct jset_entry *entry;
|
||||
unsigned u64s;
|
||||
int ret;
|
||||
|
||||
mutex_lock(&c->sb_lock);
|
||||
if (BCH_SB_CLEAN(c->disk_sb.sb))
|
||||
goto out;
|
||||
|
||||
SET_BCH_SB_CLEAN(c->disk_sb.sb, true);
|
||||
|
||||
c->disk_sb.sb->compat[0] |= cpu_to_le64(1ULL << BCH_COMPAT_alloc_info);
|
||||
c->disk_sb.sb->compat[0] |= cpu_to_le64(1ULL << BCH_COMPAT_alloc_metadata);
|
||||
c->disk_sb.sb->features[0] &= cpu_to_le64(~(1ULL << BCH_FEATURE_extents_above_btree_updates));
|
||||
c->disk_sb.sb->features[0] &= cpu_to_le64(~(1ULL << BCH_FEATURE_btree_updates_journalled));
|
||||
|
||||
u64s = sizeof(*sb_clean) / sizeof(u64) + c->journal.entry_u64s_reserved;
|
||||
|
||||
sb_clean = bch2_sb_resize_clean(&c->disk_sb, u64s);
|
||||
if (!sb_clean) {
|
||||
bch_err(c, "error resizing superblock while setting filesystem clean");
|
||||
goto out;
|
||||
}
|
||||
|
||||
sb_clean->flags = 0;
|
||||
sb_clean->journal_seq = cpu_to_le64(atomic64_read(&c->journal.seq));
|
||||
|
||||
/* Trying to catch outstanding bug: */
|
||||
BUG_ON(le64_to_cpu(sb_clean->journal_seq) > S64_MAX);
|
||||
|
||||
entry = sb_clean->start;
|
||||
bch2_journal_super_entries_add_common(c, &entry, 0);
|
||||
entry = bch2_btree_roots_to_journal_entries(c, entry, entry);
|
||||
BUG_ON((void *) entry > vstruct_end(&sb_clean->field));
|
||||
|
||||
memset(entry, 0,
|
||||
vstruct_end(&sb_clean->field) - (void *) entry);
|
||||
|
||||
/*
|
||||
* this should be in the write path, and we should be validating every
|
||||
* superblock section:
|
||||
*/
|
||||
ret = bch2_sb_clean_validate_late(c, sb_clean, WRITE);
|
||||
if (ret) {
|
||||
bch_err(c, "error writing marking filesystem clean: validate error");
|
||||
goto out;
|
||||
}
|
||||
|
||||
bch2_write_super(c);
|
||||
out:
|
||||
mutex_unlock(&c->sb_lock);
|
||||
}
|
||||
|
||||
static int bch2_sb_clean_validate(struct bch_sb *sb,
|
||||
struct bch_sb_field *f,
|
||||
struct printbuf *err)
|
||||
{
|
||||
struct bch_sb_field_clean *clean = field_to_type(f, clean);
|
||||
|
||||
if (vstruct_bytes(&clean->field) < sizeof(*clean)) {
|
||||
prt_printf(err, "wrong size (got %zu should be %zu)",
|
||||
vstruct_bytes(&clean->field), sizeof(*clean));
|
||||
return -BCH_ERR_invalid_sb_clean;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void bch2_sb_clean_to_text(struct printbuf *out, struct bch_sb *sb,
|
||||
struct bch_sb_field *f)
|
||||
{
|
||||
struct bch_sb_field_clean *clean = field_to_type(f, clean);
|
||||
struct jset_entry *entry;
|
||||
|
||||
prt_printf(out, "flags: %x", le32_to_cpu(clean->flags));
|
||||
prt_newline(out);
|
||||
prt_printf(out, "journal_seq: %llu", le64_to_cpu(clean->journal_seq));
|
||||
prt_newline(out);
|
||||
|
||||
for (entry = clean->start;
|
||||
entry != vstruct_end(&clean->field);
|
||||
entry = vstruct_next(entry)) {
|
||||
if (entry->type == BCH_JSET_ENTRY_btree_keys &&
|
||||
!entry->u64s)
|
||||
continue;
|
||||
|
||||
bch2_journal_entry_to_text(out, NULL, entry);
|
||||
prt_newline(out);
|
||||
}
|
||||
}
|
||||
|
||||
static const struct bch_sb_field_ops bch_sb_field_ops_clean = {
|
||||
.validate = bch2_sb_clean_validate,
|
||||
.to_text = bch2_sb_clean_to_text,
|
||||
};
|
||||
|
||||
static const struct bch_sb_field_ops *bch2_sb_field_ops[] = {
|
||||
#define x(f, nr) \
|
||||
[BCH_SB_FIELD_##f] = &bch_sb_field_ops_##f,
|
||||
|
||||
@ -122,19 +122,9 @@ static inline struct bch_member_cpu bch2_mi_to_cpu(struct bch_member *mi)
|
||||
};
|
||||
}
|
||||
|
||||
/* BCH_SB_FIELD_clean: */
|
||||
|
||||
void bch2_journal_super_entries_add_common(struct bch_fs *,
|
||||
struct jset_entry **, u64);
|
||||
|
||||
int bch2_sb_clean_validate_late(struct bch_fs *, struct bch_sb_field_clean *, int);
|
||||
|
||||
void bch2_sb_maybe_downgrade(struct bch_fs *);
|
||||
void bch2_sb_upgrade(struct bch_fs *, unsigned);
|
||||
|
||||
int bch2_fs_mark_dirty(struct bch_fs *);
|
||||
void bch2_fs_mark_clean(struct bch_fs *);
|
||||
|
||||
void bch2_sb_field_to_text(struct printbuf *, struct bch_sb *,
|
||||
struct bch_sb_field *);
|
||||
void bch2_sb_layout_to_text(struct printbuf *, struct bch_sb_layout *);
|
||||
|
||||
@ -46,6 +46,7 @@
|
||||
#include "rebalance.h"
|
||||
#include "recovery.h"
|
||||
#include "replicas.h"
|
||||
#include "sb-clean.h"
|
||||
#include "subvolume.h"
|
||||
#include "super.h"
|
||||
#include "super-io.h"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user