diff options
Diffstat (limited to 'libbcachefs/opts.c')
| -rw-r--r-- | libbcachefs/opts.c | 96 |
1 files changed, 79 insertions, 17 deletions
diff --git a/libbcachefs/opts.c b/libbcachefs/opts.c index 5c5cf26d..b1cf8890 100644 --- a/libbcachefs/opts.c +++ b/libbcachefs/opts.c @@ -7,7 +7,9 @@ #include "compress.h" #include "disk_groups.h" #include "error.h" +#include "movinggc.h" #include "opts.h" +#include "rebalance.h" #include "recovery_passes.h" #include "super-io.h" #include "util.h" @@ -516,7 +518,7 @@ void bch2_opts_to_text(struct printbuf *out, } } -int bch2_opt_check_may_set(struct bch_fs *c, struct bch_dev *ca, int id, u64 v) +int bch2_opt_hook_pre_set(struct bch_fs *c, struct bch_dev *ca, enum bch_opt_id id, u64 v) { int ret = 0; @@ -534,23 +536,17 @@ int bch2_opt_check_may_set(struct bch_fs *c, struct bch_dev *ca, int id, u64 v) if (v) bch2_check_set_feature(c, BCH_FEATURE_ec); break; - case Opt_single_device: - if (v) { - mutex_lock(&c->sb_lock); - if (bch2_sb_nr_devices(c->disk_sb.sb) > 1) - ret = -BCH_ERR_not_single_device_filesystem; - mutex_unlock(&c->sb_lock); - } + default: break; } return ret; } -int bch2_opts_check_may_set(struct bch_fs *c) +int bch2_opts_hooks_pre_set(struct bch_fs *c) { for (unsigned i = 0; i < bch2_opts_nr; i++) { - int ret = bch2_opt_check_may_set(c, NULL, i, bch2_opt_get_by_id(&c->opts, i)); + int ret = bch2_opt_hook_pre_set(c, NULL, i, bch2_opt_get_by_id(&c->opts, i)); if (ret) return ret; } @@ -558,6 +554,61 @@ int bch2_opts_check_may_set(struct bch_fs *c) return 0; } +void bch2_opt_hook_post_set(struct bch_fs *c, struct bch_dev *ca, u64 inum, + struct bch_opts *new_opts, enum bch_opt_id id) +{ + switch (id) { + case Opt_foreground_target: + if (new_opts->foreground_target && + !new_opts->background_target) + bch2_set_rebalance_needs_scan(c, inum); + break; + case Opt_compression: + if (new_opts->compression && + !new_opts->background_compression) + bch2_set_rebalance_needs_scan(c, inum); + break; + case Opt_background_target: + if (new_opts->background_target) + bch2_set_rebalance_needs_scan(c, inum); + break; + case Opt_background_compression: + if (new_opts->background_compression) + bch2_set_rebalance_needs_scan(c, inum); + break; + case Opt_rebalance_enabled: + bch2_rebalance_wakeup(c); + break; + case Opt_copygc_enabled: + bch2_copygc_wakeup(c); + break; + case Opt_discard: + if (!ca) { + mutex_lock(&c->sb_lock); + for_each_member_device(c, ca) { + struct bch_member *m = + bch2_members_v2_get_mut(ca->disk_sb.sb, ca->dev_idx); + SET_BCH_MEMBER_DISCARD(m, c->opts.discard); + } + + bch2_write_super(c); + mutex_unlock(&c->sb_lock); + } + break; + case Opt_version_upgrade: + /* + * XXX: in the future we'll likely want to do compatible + * upgrades at runtime as well, but right now there's nothing + * that does that: + */ + if (new_opts->version_upgrade == BCH_VERSION_UPGRADE_incompatible) + bch2_sb_upgrade_incompat(c); + break; + default: + break; + } +} + int bch2_parse_one_mount_opt(struct bch_fs *c, struct bch_opts *opts, struct printbuf *parse_later, const char *name, const char *val) @@ -717,9 +768,11 @@ int bch2_opts_from_sb(struct bch_opts *opts, struct bch_sb *sb) return 0; } -void __bch2_opt_set_sb(struct bch_sb *sb, int dev_idx, +bool __bch2_opt_set_sb(struct bch_sb *sb, int dev_idx, const struct bch_option *opt, u64 v) { + bool changed = false; + if (opt->flags & OPT_SB_FIELD_SECTORS) v >>= 9; @@ -729,26 +782,35 @@ void __bch2_opt_set_sb(struct bch_sb *sb, int dev_idx, if (opt->flags & OPT_SB_FIELD_ONE_BIAS) v++; - if ((opt->flags & OPT_FS) && opt->set_sb && dev_idx < 0) + if ((opt->flags & OPT_FS) && opt->set_sb && dev_idx < 0) { + changed = v != opt->get_sb(sb); + opt->set_sb(sb, v); + } if ((opt->flags & OPT_DEVICE) && opt->set_member && dev_idx >= 0) { if (WARN(!bch2_member_exists(sb, dev_idx), "tried to set device option %s on nonexistent device %i", opt->attr.name, dev_idx)) - return; + return false; - opt->set_member(bch2_members_v2_get_mut(sb, dev_idx), v); + struct bch_member *m = bch2_members_v2_get_mut(sb, dev_idx); + changed = v != opt->get_member(m); + opt->set_member(m, v); } + + return changed; } -void bch2_opt_set_sb(struct bch_fs *c, struct bch_dev *ca, +bool bch2_opt_set_sb(struct bch_fs *c, struct bch_dev *ca, const struct bch_option *opt, u64 v) { mutex_lock(&c->sb_lock); - __bch2_opt_set_sb(c->disk_sb.sb, ca ? ca->dev_idx : -1, opt, v); - bch2_write_super(c); + bool changed = __bch2_opt_set_sb(c->disk_sb.sb, ca ? ca->dev_idx : -1, opt, v); + if (changed) + bch2_write_super(c); mutex_unlock(&c->sb_lock); + return changed; } /* io opts: */ |