Re: [PATCH] JBD: use GFP_NOFS in kmalloc

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sep 19, 2007  12:22 -0700, Mingming Cao wrote:
> Convert the GFP_KERNEL flag used in JBD/JBD2 to GFP_NOFS, consistent
> with the rest of kmalloc flag used in the JBD/JBD2 layer.
> 
> @@ -653,7 +653,7 @@ static journal_t * journal_init_common (
> -	journal = kmalloc(sizeof(*journal), GFP_KERNEL);
> +	journal = kmalloc(sizeof(*journal), GFP_NOFS);
> @@ -723,7 +723,7 @@ journal_t * journal_init_dev(struct bloc
> -	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
> +	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_NOFS);
> @@ -777,7 +777,7 @@ journal_t * journal_init_inode (struct i
> -	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_KERNEL);
> +	journal->j_wbuf = kmalloc(n * sizeof(struct buffer_head*), GFP_NOFS);

Is there a reason for this change except "it's in a filesystem, so it
should be GFP_NOFS"?  We are only doing journal setup during mount so
there shouldn't be any problem using GFP_KERNEL.  I don't think it will
inject any defect into the code, but I don't think it is needed either.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux