From b40c2e665cd552eae5fbdbb878bc29a34357668e Mon Sep 17 00:00:00 2001 From: Tino Reichardt Date: Mon, 17 Sep 2012 11:58:19 -0500 Subject: fs/jfs: TRIM support for JFS Filesystem This patch adds support for the two linux interfaces of the discard/TRIM command for SSD devices and sparse/thinly-provisioned LUNs. JFS will support batched discard via FITRIM ioctl and online discard with the discard mount option. Signed-off-by: Tino Reichardt Signed-off-by: Dave Kleikamp --- fs/jfs/jfs_incore.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/jfs/jfs_incore.h') diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h index 584a4a1a6e8..4fa958ae198 100644 --- a/fs/jfs/jfs_incore.h +++ b/fs/jfs/jfs_incore.h @@ -195,6 +195,7 @@ struct jfs_sb_info { uint uid; /* uid to override on-disk uid */ uint gid; /* gid to override on-disk gid */ uint umask; /* umask to override on-disk umask */ + uint minblks_trim; /* minimum blocks, for online trim */ }; /* jfs_sb_info commit_state */ -- cgit v1.2.3