On Wed, Jan 20, 2021 at 06:27:05PM +0100, Jan Kara wrote: > This would mean pulling i_mmap_sem out from ext4/XFS/F2FS private inode > into the VFS inode. Which is fine by me but it would grow struct inode for > proc / tmpfs / btrfs (although for btrfs I'm not convinced it isn't > actually prone to the race and doesn't need similar protection as xfs / > ext4) so some people may object. The btrfs folks are already looking into lifting it to common code. Also I have a patch pending to remove a list_head from the inode to counter the size increase :)
