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(parent: 7bcb816) | patch
btrfs: lift uuid_mutex to callers of btrfs_scan_one_device
authorDavid Sterba <dsterba@suse.com>
Tue, 19 Jun 2018 14:37:36 +0000 (16:37 +0200)
committerDavid Sterba <dsterba@suse.com>
Mon, 6 Aug 2018 11:12:47 +0000 (13:12 +0200)
commit899f9307c33ce4758c30a076b10ed54d5c91c6e7
treea4a20c74583fb1d5f4527977faa947670562f6detree | snapshot
parent7bcb8164ad9435068d9bc3b83b8a002c64d63ff6commit | diff
btrfs: lift uuid_mutex to callers of btrfs_scan_one_device

Prepartory work to fix race between mount and device scan.

The callers will have to manage the critical section, eg. mount wants to
scan and then call btrfs_open_devices without the ioctl scan walking in
and modifying the fs devices in the meantime.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/super.c diff | blob | blame | history
fs/btrfs/volumes.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)