linux-kernel - Re: [PATCH SPEAKUP v2 3/3] use spkeaup

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Message-ID: <20170228090515.ni3sz7ekvppj4t7q@var.youpi.perso.aquilenet.fr>
Date:   Tue, 28 Feb 2017 10:05:15 +0100
From:   Samuel Thibault <samuel.thibault@...-lyon.org>
To:     "Pranay Kr. Srivastava" <pranjas@...il.com>
Cc:     w.d.hubbs@...il.com, chris@...-brannons.com, kirk@...sers.ca,
        gregkh@...uxfoundation.org, sfr@...b.auug.org.au,
        speakup@...ux-speakup.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH SPEAKUP v2 3/3] use spkeaup_allocate as per required
 context

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@...il.com>

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

> ---
>  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