Re: [PATCH 2/2] ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard

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

 



On Thu, Nov 18, 2010 at 08:36:49AM +0100, Lukas Czerner wrote:
> @@ -541,6 +541,7 @@ struct ext4_new_group_data {
>   /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
>  #define EXT4_IOC_ALLOC_DA_BLKS		_IO('f', 12)
>  #define EXT4_IOC_MOVE_EXT		_IOWR('f', 15, struct move_extent)
> +#define EXT4_IOC_TRIM			FITRIM

If we're going to keep FITRIM defined in include/fs.h, then we should
just dispatch off of FITRIM below, and not define EXT4_IOC_TRIM.

> +	case EXT4_IOC_TRIM:
> +	{

Agreed?

There's no point making this look like an EXT4-specific interface; if
other file systems want to implement FITRIM as an ioctl, they are free
to do so.

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux