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-rw-r--r--fs/bcachefs/super.c169
1 files changed, 71 insertions, 98 deletions
diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index a58edde43bee..e4ab0595c0ae 100644
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -70,14 +70,10 @@
#include <linux/percpu.h>
#include <linux/random.h>
#include <linux/sysfs.h>
-#include <crypto/hash.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Kent Overstreet <kent.overstreet@gmail.com>");
MODULE_DESCRIPTION("bcachefs filesystem");
-MODULE_SOFTDEP("pre: chacha20");
-MODULE_SOFTDEP("pre: poly1305");
-MODULE_SOFTDEP("pre: xxhash");
const char * const bch2_fs_flag_strs[] = {
#define x(n) #n,
@@ -422,32 +418,6 @@ bool bch2_fs_emergency_read_only_locked(struct bch_fs *c)
return ret;
}
-static int bch2_fs_read_write_late(struct bch_fs *c)
-{
- int ret;
-
- /*
- * Data move operations can't run until after check_snapshots has
- * completed, and bch2_snapshot_is_ancestor() is available.
- *
- * Ideally we'd start copygc/rebalance earlier instead of waiting for
- * all of recovery/fsck to complete:
- */
- ret = bch2_copygc_start(c);
- if (ret) {
- bch_err(c, "error starting copygc thread");
- return ret;
- }
-
- ret = bch2_rebalance_start(c);
- if (ret) {
- bch_err(c, "error starting rebalance thread");
- return ret;
- }
-
- return 0;
-}
-
static int __bch2_fs_read_write(struct bch_fs *c, bool early)
{
int ret;
@@ -470,29 +440,28 @@ static int __bch2_fs_read_write(struct bch_fs *c, bool early)
clear_bit(BCH_FS_clean_shutdown, &c->flags);
+ __for_each_online_member(c, ca, BIT(BCH_MEMBER_STATE_rw), READ) {
+ bch2_dev_allocator_add(c, ca);
+ percpu_ref_reinit(&ca->io_ref[WRITE]);
+ }
+ bch2_recalc_capacity(c);
+
/*
* First journal write must be a flush write: after a clean shutdown we
* don't read the journal, so the first journal write may end up
* overwriting whatever was there previously, and there must always be
* at least one non-flush write in the journal or recovery will fail:
*/
+ spin_lock(&c->journal.lock);
set_bit(JOURNAL_need_flush_write, &c->journal.flags);
set_bit(JOURNAL_running, &c->journal.flags);
-
- __for_each_online_member(c, ca, BIT(BCH_MEMBER_STATE_rw), READ) {
- bch2_dev_allocator_add(c, ca);
- percpu_ref_reinit(&ca->io_ref[WRITE]);
- }
- bch2_recalc_capacity(c);
+ bch2_journal_space_available(&c->journal);
+ spin_unlock(&c->journal.lock);
ret = bch2_fs_mark_dirty(c);
if (ret)
goto err;
- spin_lock(&c->journal.lock);
- bch2_journal_space_available(&c->journal);
- spin_unlock(&c->journal.lock);
-
ret = bch2_journal_reclaim_start(&c->journal);
if (ret)
goto err;
@@ -508,10 +477,17 @@ static int __bch2_fs_read_write(struct bch_fs *c, bool early)
atomic_long_inc(&c->writes[i]);
}
#endif
- if (!early) {
- ret = bch2_fs_read_write_late(c);
- if (ret)
- goto err;
+
+ ret = bch2_copygc_start(c);
+ if (ret) {
+ bch_err_msg(c, ret, "error starting copygc thread");
+ goto err;
+ }
+
+ ret = bch2_rebalance_start(c);
+ if (ret) {
+ bch_err_msg(c, ret, "error starting rebalance thread");
+ goto err;
}
bch2_do_discards(c);
@@ -557,6 +533,7 @@ static void __bch2_fs_free(struct bch_fs *c)
bch2_find_btree_nodes_exit(&c->found_btree_nodes);
bch2_free_pending_node_rewrites(c);
+ bch2_free_fsck_errs(c);
bch2_fs_accounting_exit(c);
bch2_fs_sb_errors_exit(c);
bch2_fs_counters_exit(c);
@@ -593,6 +570,7 @@ static void __bch2_fs_free(struct bch_fs *c)
free_percpu(c->online_reserved);
}
+ darray_exit(&c->incompat_versions_requested);
darray_exit(&c->btree_roots_extra);
free_percpu(c->pcpu);
free_percpu(c->usage);
@@ -1002,12 +980,6 @@ static void print_mount_opts(struct bch_fs *c)
prt_str(&p, "starting version ");
bch2_version_to_text(&p, c->sb.version);
- if (c->opts.read_only) {
- prt_str(&p, " opts=");
- first = false;
- prt_printf(&p, "ro");
- }
-
for (i = 0; i < bch2_opts_nr; i++) {
const struct bch_option *opt = &bch2_opt_table[i];
u64 v = bch2_opt_get_by_id(&c->opts, i);
@@ -1023,10 +995,49 @@ static void print_mount_opts(struct bch_fs *c)
bch2_opt_to_text(&p, c, c->disk_sb.sb, opt, v, OPT_SHOW_MOUNT_STYLE);
}
+ if (c->sb.version_incompat_allowed != c->sb.version) {
+ prt_printf(&p, "\n allowing incompatible features above ");
+ bch2_version_to_text(&p, c->sb.version_incompat_allowed);
+ }
+
bch_info(c, "%s", p.buf);
printbuf_exit(&p);
}
+static bool bch2_fs_may_start(struct bch_fs *c)
+{
+ struct bch_dev *ca;
+ unsigned i, flags = 0;
+
+ if (c->opts.very_degraded)
+ flags |= BCH_FORCE_IF_DEGRADED|BCH_FORCE_IF_LOST;
+
+ if (c->opts.degraded)
+ flags |= BCH_FORCE_IF_DEGRADED;
+
+ if (!c->opts.degraded &&
+ !c->opts.very_degraded) {
+ mutex_lock(&c->sb_lock);
+
+ for (i = 0; i < c->disk_sb.sb->nr_devices; i++) {
+ if (!bch2_member_exists(c->disk_sb.sb, i))
+ continue;
+
+ ca = bch2_dev_locked(c, i);
+
+ if (!bch2_dev_is_online(ca) &&
+ (ca->mi.state == BCH_MEMBER_STATE_rw ||
+ ca->mi.state == BCH_MEMBER_STATE_ro)) {
+ mutex_unlock(&c->sb_lock);
+ return false;
+ }
+ }
+ mutex_unlock(&c->sb_lock);
+ }
+
+ return bch2_have_enough_devs(c, bch2_online_devs(c), flags, true);
+}
+
int bch2_fs_start(struct bch_fs *c)
{
time64_t now = ktime_get_real_seconds();
@@ -1034,6 +1045,9 @@ int bch2_fs_start(struct bch_fs *c)
print_mount_opts(c);
+ if (!bch2_fs_may_start(c))
+ return -BCH_ERR_insufficient_devices_to_start;
+
down_write(&c->state_lock);
mutex_lock(&c->sb_lock);
@@ -1086,13 +1100,10 @@ int bch2_fs_start(struct bch_fs *c)
wake_up(&c->ro_ref_wait);
down_write(&c->state_lock);
- if (c->opts.read_only) {
+ if (c->opts.read_only)
bch2_fs_read_only(c);
- } else {
- ret = !test_bit(BCH_FS_rw, &c->flags)
- ? bch2_fs_read_write(c)
- : bch2_fs_read_write_late(c);
- }
+ else if (!test_bit(BCH_FS_rw, &c->flags))
+ ret = bch2_fs_read_write(c);
up_write(&c->state_lock);
err:
@@ -1504,7 +1515,7 @@ static int bch2_dev_attach_bdev(struct bch_fs *c, struct bch_sb_handle *sb)
printbuf_exit(&name);
- rebalance_wakeup(c);
+ bch2_rebalance_wakeup(c);
return 0;
}
@@ -1563,40 +1574,6 @@ bool bch2_dev_state_allowed(struct bch_fs *c, struct bch_dev *ca,
}
}
-static bool bch2_fs_may_start(struct bch_fs *c)
-{
- struct bch_dev *ca;
- unsigned i, flags = 0;
-
- if (c->opts.very_degraded)
- flags |= BCH_FORCE_IF_DEGRADED|BCH_FORCE_IF_LOST;
-
- if (c->opts.degraded)
- flags |= BCH_FORCE_IF_DEGRADED;
-
- if (!c->opts.degraded &&
- !c->opts.very_degraded) {
- mutex_lock(&c->sb_lock);
-
- for (i = 0; i < c->disk_sb.sb->nr_devices; i++) {
- if (!bch2_member_exists(c->disk_sb.sb, i))
- continue;
-
- ca = bch2_dev_locked(c, i);
-
- if (!bch2_dev_is_online(ca) &&
- (ca->mi.state == BCH_MEMBER_STATE_rw ||
- ca->mi.state == BCH_MEMBER_STATE_ro)) {
- mutex_unlock(&c->sb_lock);
- return false;
- }
- }
- mutex_unlock(&c->sb_lock);
- }
-
- return bch2_have_enough_devs(c, bch2_online_devs(c), flags, true);
-}
-
static void __bch2_dev_read_only(struct bch_fs *c, struct bch_dev *ca)
{
bch2_dev_io_ref_stop(ca, WRITE);
@@ -1650,7 +1627,7 @@ int __bch2_dev_set_state(struct bch_fs *c, struct bch_dev *ca,
if (new_state == BCH_MEMBER_STATE_rw)
__bch2_dev_read_write(c, ca);
- rebalance_wakeup(c);
+ bch2_rebalance_wakeup(c);
return ret;
}
@@ -1767,7 +1744,8 @@ int bch2_dev_remove(struct bch_fs *c, struct bch_dev *ca, int flags)
up_write(&c->state_lock);
return 0;
err:
- if (ca->mi.state == BCH_MEMBER_STATE_rw &&
+ if (test_bit(BCH_FS_rw, &c->flags) &&
+ ca->mi.state == BCH_MEMBER_STATE_rw &&
!percpu_ref_is_zero(&ca->io_ref[READ]))
__bch2_dev_read_write(c, ca);
up_write(&c->state_lock);
@@ -2231,11 +2209,6 @@ struct bch_fs *bch2_fs_open(char * const *devices, unsigned nr_devices,
}
up_write(&c->state_lock);
- if (!bch2_fs_may_start(c)) {
- ret = -BCH_ERR_insufficient_devices_to_start;
- goto err_print;
- }
-
if (!c->opts.nostart) {
ret = bch2_fs_start(c);
if (ret)
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-26 14:10:24 +0000