Re: [PATCH v5 04/10] mmap locking API: use coccinelle to convert mmap_sem rwsem call sites

[Vlastimil Babka]

On 4/22/20 2:14 AM, Michel Lespinasse wrote:
> This change converts the existing mmap_sem rwsem calls to use the new
> mmap locking API instead.
> 
> The change is generated using coccinelle with the following rule:
> 
> // spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir .
> 
> @@
> expression mm;
> @@
> (
> -init_rwsem
> +mmap_init_lock
> |
> -down_write
> +mmap_write_lock
> |
> -down_write_killable
> +mmap_write_lock_killable
> |
> -down_write_trylock
> +mmap_write_trylock
> |
> -up_write
> +mmap_write_unlock
> |
> -downgrade_write
> +mmap_write_downgrade
> |
> -down_read
> +mmap_read_lock
> |
> -down_read_killable
> +mmap_read_lock_killable
> |
> -down_read_trylock
> +mmap_read_trylock
> |
> -up_read
> +mmap_read_unlock
> )
> -(&mm->mmap_sem)
> +(mm)
> 
> Signed-off-by: Michel Lespinasse <walken@xxxxxxxxxx>
> Reviewed-by: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx>

Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>