diff options
Diffstat (limited to 'fs/bcachefs/chardev.c')
| -rw-r--r-- | fs/bcachefs/chardev.c | 219 |
1 files changed, 1 insertions, 218 deletions
diff --git a/fs/bcachefs/chardev.c b/fs/bcachefs/chardev.c index 2182b555c112..46e9e32105a9 100644 --- a/fs/bcachefs/chardev.c +++ b/fs/bcachefs/chardev.c @@ -6,11 +6,11 @@ #include "buckets.h" #include "chardev.h" #include "disk_accounting.h" +#include "fsck.h" #include "journal.h" #include "move.h" #include "recovery_passes.h" #include "replicas.h" -#include "super.h" #include "super-io.h" #include "thread_with_file.h" @@ -127,130 +127,6 @@ static long bch2_ioctl_incremental(struct bch_ioctl_incremental __user *user_arg } #endif -struct fsck_thread { - struct thread_with_stdio thr; - struct bch_fs *c; - struct bch_opts opts; -}; - -static void bch2_fsck_thread_exit(struct thread_with_stdio *_thr) -{ - struct fsck_thread *thr = container_of(_thr, struct fsck_thread, thr); - kfree(thr); -} - -static int bch2_fsck_offline_thread_fn(struct thread_with_stdio *stdio) -{ - struct fsck_thread *thr = container_of(stdio, struct fsck_thread, thr); - struct bch_fs *c = thr->c; - - int ret = PTR_ERR_OR_ZERO(c); - if (ret) - return ret; - - ret = bch2_fs_start(thr->c); - if (ret) - goto err; - - if (test_bit(BCH_FS_errors_fixed, &c->flags)) { - bch2_stdio_redirect_printf(&stdio->stdio, false, "%s: errors fixed\n", c->name); - ret |= 1; - } - if (test_bit(BCH_FS_error, &c->flags)) { - bch2_stdio_redirect_printf(&stdio->stdio, false, "%s: still has errors\n", c->name); - ret |= 4; - } -err: - bch2_fs_stop(c); - return ret; -} - -static const struct thread_with_stdio_ops bch2_offline_fsck_ops = { - .exit = bch2_fsck_thread_exit, - .fn = bch2_fsck_offline_thread_fn, -}; - -static long bch2_ioctl_fsck_offline(struct bch_ioctl_fsck_offline __user *user_arg) -{ - struct bch_ioctl_fsck_offline arg; - struct fsck_thread *thr = NULL; - darray_str(devs) = {}; - long ret = 0; - - if (copy_from_user(&arg, user_arg, sizeof(arg))) - return -EFAULT; - - if (arg.flags) - return -EINVAL; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - for (size_t i = 0; i < arg.nr_devs; i++) { - u64 dev_u64; - ret = copy_from_user_errcode(&dev_u64, &user_arg->devs[i], sizeof(u64)); - if (ret) - goto err; - - char *dev_str = strndup_user((char __user *)(unsigned long) dev_u64, PATH_MAX); - ret = PTR_ERR_OR_ZERO(dev_str); - if (ret) - goto err; - - ret = darray_push(&devs, dev_str); - if (ret) { - kfree(dev_str); - goto err; - } - } - - thr = kzalloc(sizeof(*thr), GFP_KERNEL); - if (!thr) { - ret = -ENOMEM; - goto err; - } - - thr->opts = bch2_opts_empty(); - - if (arg.opts) { - char *optstr = strndup_user((char __user *)(unsigned long) arg.opts, 1 << 16); - ret = PTR_ERR_OR_ZERO(optstr) ?: - bch2_parse_mount_opts(NULL, &thr->opts, NULL, optstr); - if (!IS_ERR(optstr)) - kfree(optstr); - - if (ret) - goto err; - } - - opt_set(thr->opts, stdio, (u64)(unsigned long)&thr->thr.stdio); - opt_set(thr->opts, read_only, 1); - opt_set(thr->opts, ratelimit_errors, 0); - - /* We need request_key() to be called before we punt to kthread: */ - opt_set(thr->opts, nostart, true); - - bch2_thread_with_stdio_init(&thr->thr, &bch2_offline_fsck_ops); - - thr->c = bch2_fs_open(devs.data, arg.nr_devs, thr->opts); - - if (!IS_ERR(thr->c) && - thr->c->opts.errors == BCH_ON_ERROR_panic) - thr->c->opts.errors = BCH_ON_ERROR_ro; - - ret = __bch2_run_thread_with_stdio(&thr->thr); -out: - darray_for_each(devs, i) - kfree(*i); - darray_exit(&devs); - return ret; -err: - if (thr) - bch2_fsck_thread_exit(&thr->thr); - pr_err("ret %s", bch2_err_str(ret)); - goto out; -} - static long bch2_global_ioctl(unsigned cmd, void __user *arg) { long ret; @@ -775,99 +651,6 @@ static long bch2_ioctl_disk_resize_journal(struct bch_fs *c, return ret; } -static int bch2_fsck_online_thread_fn(struct thread_with_stdio *stdio) -{ - struct fsck_thread *thr = container_of(stdio, struct fsck_thread, thr); - struct bch_fs *c = thr->c; - - c->stdio_filter = current; - c->stdio = &thr->thr.stdio; - - /* - * XXX: can we figure out a way to do this without mucking with c->opts? - */ - unsigned old_fix_errors = c->opts.fix_errors; - if (opt_defined(thr->opts, fix_errors)) - c->opts.fix_errors = thr->opts.fix_errors; - else - c->opts.fix_errors = FSCK_FIX_ask; - - c->opts.fsck = true; - set_bit(BCH_FS_fsck_running, &c->flags); - - c->curr_recovery_pass = BCH_RECOVERY_PASS_check_alloc_info; - int ret = bch2_run_online_recovery_passes(c); - - clear_bit(BCH_FS_fsck_running, &c->flags); - bch_err_fn(c, ret); - - c->stdio = NULL; - c->stdio_filter = NULL; - c->opts.fix_errors = old_fix_errors; - - up(&c->online_fsck_mutex); - bch2_ro_ref_put(c); - return ret; -} - -static const struct thread_with_stdio_ops bch2_online_fsck_ops = { - .exit = bch2_fsck_thread_exit, - .fn = bch2_fsck_online_thread_fn, -}; - -static long bch2_ioctl_fsck_online(struct bch_fs *c, - struct bch_ioctl_fsck_online arg) -{ - struct fsck_thread *thr = NULL; - long ret = 0; - - if (arg.flags) - return -EINVAL; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - if (!bch2_ro_ref_tryget(c)) - return -EROFS; - - if (down_trylock(&c->online_fsck_mutex)) { - bch2_ro_ref_put(c); - return -EAGAIN; - } - - thr = kzalloc(sizeof(*thr), GFP_KERNEL); - if (!thr) { - ret = -ENOMEM; - goto err; - } - - thr->c = c; - thr->opts = bch2_opts_empty(); - - if (arg.opts) { - char *optstr = strndup_user((char __user *)(unsigned long) arg.opts, 1 << 16); - - ret = PTR_ERR_OR_ZERO(optstr) ?: - bch2_parse_mount_opts(c, &thr->opts, NULL, optstr); - if (!IS_ERR(optstr)) - kfree(optstr); - - if (ret) - goto err; - } - - ret = bch2_run_thread_with_stdio(&thr->thr, &bch2_online_fsck_ops); -err: - if (ret < 0) { - bch_err_fn(c, ret); - if (thr) - bch2_fsck_thread_exit(&thr->thr); - up(&c->online_fsck_mutex); - bch2_ro_ref_put(c); - } - return ret; -} - #define BCH_IOCTL(_name, _argtype) \ do { \ _argtype i; \ |