Re: [PATCH] ext4: Add support for FIDTRIM, a best-effort ioctl for deep discard trim
From: Dave Chinner <david@fromorbit.com>
Date: 2014-07-24 12:08:01
Also in:
linux-fsdevel
On Wed, Jul 23, 2014 at 04:47:18PM -0700, JP Abgrall wrote:
quoted hunk ↗ jump to hunk
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index ca1a11b..a1816ca 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h@@ -156,6 +156,7 @@ struct inodes_stat_t { #define FIFREEZE _IOWR('X', 119, int) /* Freeze */ #define FITHAW _IOWR('X', 120, int) /* Thaw */ #define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */ +#define FIDTRIM _IOWR('X', 122, struct fstrim_range) /* Deep discard trim */
The 'X' ioctl namespace is actually XFS's ioctl namespace. FIDTRIM
should be in the 'f' namespace - FIFREEZE and FITHAW were inherited
from XFS, which is where that came from originally, and it got
propagated to FITRIM and it wasn't caught on review. I only noticed
that now:
#define XFS_IOC_FSSETDM_BY_HANDLE _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
#define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com