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| author |   Kent Overstreet <kent.overstreet@linux.dev> | 2025-06-07 12:01:22 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-06-11 23:21:30 -0400 |
| commit | af5b88618a38371545251ad92ce42bc4bfa1142a (patch) | |
| tree | cab03f293c6c24662e8550b9bf4b185a90615ba4 | |
| parent | bcachefs: Add more flags to btree nodes for rewrite reason (diff) | |
| download | wireguard-linux-af5b88618a38371545251ad92ce42bc4bfa1142a.tar.xz wireguard-linux-af5b88618a38371545251ad92ce42bc4bfa1142a.zip | |
bcachefs: Update /dev/disk/by-uuid on device add
Invalidate pagecache after we write the new superblock and send a
uevent.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/super.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c index 397a69da5a75..8648f22411be 100644 --- a/fs/bcachefs/super.c +++ b/fs/bcachefs/super.c @@ -1995,6 +1995,22 @@ int bch2_dev_add(struct bch_fs *c, const char *path) goto err_late; } + /* + * We just changed the superblock UUID, invalidate cache and send a + * uevent to update /dev/disk/by-uuid + */ + invalidate_bdev(ca->disk_sb.bdev); + + char uuid_str[37]; + snprintf(uuid_str, sizeof(uuid_str), "UUID=%pUb", &c->sb.uuid); + + char *envp[] = { + "CHANGE=uuid", + uuid_str, + NULL, + }; + kobject_uevent_env(&ca->disk_sb.bdev->bd_device.kobj, KOBJ_CHANGE, envp); + up_write(&c->state_lock); out: printbuf_exit(&label); |