Re: [PATCH v3 0/6] btrfs: use the super_block as bdev holder

[David Sterba <dsterba@suse.cz>]

On Fri, Jun 20, 2025 at 08:34:05AM +0930, Qu Wenruo wrote:
> 
> 
> 在 2025/6/19 22:59, David Sterba 写道:
> > On Tue, Jun 17, 2025 at 02:49:33PM +0930, Qu Wenruo wrote:
> >> [CHANGELOG]
> >> v3:
> >> - Drop the btrfs_fs_devices::opened split
> >>    It turns out to cause problems during tests.
> >>
> >> - Extra cleanup related to the btrfs_get_tree_*()
> >>    Now the re-entry through vfs_get_tree() is completely dropped.
> >>
> >> - Extra comments explaining the sget_fc() behavior
> >>
> >> - Call bdev_fput() instead of fput()
> >>    This alignes us to all the other fses.
> >>
> >> - Updated patch to delay btrfs_open_devices() until sget_fc()
> >>    Instead of relying on the previous solution (split
> >>    btrfs_open_devices::opened), just expand the uuid_mutex critical
> >>    section.
> > 
> > I've added the patches to linux-next for testing.
> 
> Thanks, although I have a 3-lines small patch to pass &fs_holder_ops 
> into all the bdev_file_open_by_path() calls, to enable bdev freeze/thaw 
> support.
> 
> That has already passed several rounds of tests here, and I believe it 
> may solve the problem of btrfs corruption during hibernation/suspension.
> 
> Should I just send it right now for extra tests, or stick to my original 
> plan to submit that along with the full shutdown support?

Please send it seaparately for more tests, thanks.