Unverified Commit 5aa9130a authored by Christian Brauner's avatar Christian Brauner
Browse files

porting: update locking requirements 

Now that s_umount is never taken under open_mutex update the
documentation to say so.

Link: https://lore.kernel.org/r/20231017184823.1383356-1-hch@lst.de


Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 3b224e1d

Documentation/filesystems/porting.rst

+7 −0
Original line number Diff line number Diff line
@@ -1045,3 +1045,10 @@ filesystem type is now moved to a later point when the devices are closed: 
As this is a VFS level change it has no practical consequences for filesystems

other than that all of them must use one of the provided kill_litter_super(),

kill_anon_super(), or kill_block_super() helpers.



---



**mandatory**



Lock ordering has been changed so that s_umount ranks above open_mutex again.

All places where s_umount was taken under open_mutex have been fixed up.