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bcachefs: Disable errors=panic for BCH_IOCTL_FSCK_OFFLINE 

BCH_IOCTL_FSCK_OFFLINE allows the userspace fsck tool to use the kernel
implementation of fsck - primarily when the kernel version is a better
version match.

It should look and act exactly like the normal userspace fsck that the
user expected to be invoking, so errors should never result in a kernel
panic.

We may want to consider further restricting errors=panic - it's only
intended for debugging in controlled test environments, it should have
no purpose it normal usage.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-04-05 22:30:30 -04:00
parent 374b3d38fe
commit 05801b6526
1 changed files with 4 additions and 0 deletions
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4
fs/bcachefs/chardev.c
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@ -234,6 +234,10 @@ static long bch2_ioctl_fsck_offline(struct bch_ioctl_fsck_offline __user *user_a
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, &bch2_offline_fsck_ops);
out:
darray_for_each(devs, i)