Re: [PATCH SPEAKUP v2 3/3] use spkeaup_allocate as per required context

From: Samuel Thibault
Date: Tue Feb 28 2017 - 04:15:34 EST


Pranay Kr. Srivastava, on mar. 28 févr. 2017 13:57:55 +0530, wrote:
> speakup_allocate used GFP_ATOMIC for allocations
> even while during initialization due to it's use
> in notifier call.
>
> Pass GFP_ flags as well to speakup_allocate depending
> on the context it is called in.
>
> Signed-off-by: Pranay Kr. Srivastava <pranjas@xxxxxxxxx>

Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

> ---
> drivers/staging/speakup/main.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
> index ca817ca..ede842e 100644
> --- a/drivers/staging/speakup/main.c
> +++ b/drivers/staging/speakup/main.c
> @@ -1327,14 +1327,14 @@ static int edit_bits(struct vc_data *vc, u_char type, u_char ch, u_short key)
> }
>
> /* Allocation concurrency is protected by the console semaphore */
> -static int speakup_allocate(struct vc_data *vc)
> +static int speakup_allocate(struct vc_data *vc, gfp_t gfp_flags)
> {
> int vc_num;
>
> vc_num = vc->vc_num;
> if (speakup_console[vc_num] == NULL) {
> speakup_console[vc_num] = kzalloc(sizeof(*speakup_console[0]),
> - GFP_ATOMIC);
> + gfp_flags);
> if (speakup_console[vc_num] == NULL)
> return -ENOMEM;
> speakup_date(vc);
> @@ -2257,7 +2257,7 @@ static int vt_notifier_call(struct notifier_block *nb,
> switch (code) {
> case VT_ALLOCATE:
> if (vc->vc_mode == KD_TEXT)
> - speakup_allocate(vc);
> + speakup_allocate(vc, GFP_ATOMIC);
> break;
> case VT_DEALLOCATE:
> speakup_deallocate(vc);
> @@ -2343,7 +2343,7 @@ static int __init speakup_init(void)
>
> for (i = 0; i < MAX_NR_CONSOLES; i++)
> if (vc_cons[i].d) {
> - err = speakup_allocate(vc_cons[i].d);
> + err = speakup_allocate(vc_cons[i].d, GFP_KERNEL);
> if (err)
> goto error_kobjects;
> }
> --
> 2.10.2
>

--
Samuel
(03:13:14) <j> bon
(03:13:19) <j> il est tard :p
(03:13:25) <g> c'est l'heure de manger
(03:13:38) <j> hm j'ai mangé à 1h moi, j'ai des horaires raisonnables