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authorTao Ma <boyu.mt@taobao.com>2011-05-23 10:36:44 +0800
committerJoel Becker <jlbec@evilplan.org>2011-05-23 23:37:19 -0700
commit55e67872b67ebd30d1326067cdba53a622ab497d (patch)
tree6269c3ab8aebc81ee32997c3e23ca53c68db3482 /fs/ocfs2/ioctl.c
parente80de36d8dbff216a384e9204e54d59deeadf344 (diff)
ocfs2: Add FITRIM ioctl.
Add the corresponding ioctl function for FITRIM. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
Diffstat (limited to 'fs/ocfs2/ioctl.c')
-rw-r--r--fs/ocfs2/ioctl.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 8f13c5989ea..312a28f433a 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -542,6 +542,29 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return -EFAULT;
return ocfs2_info_handle(inode, &info, 0);
+ case FITRIM:
+ {
+ struct super_block *sb = inode->i_sb;
+ struct fstrim_range range;
+ int ret = 0;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (copy_from_user(&range, (struct fstrim_range *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ ret = ocfs2_trim_fs(sb, &range);
+ if (ret < 0)
+ return ret;
+
+ if (copy_to_user((struct fstrim_range *)arg, &range,
+ sizeof(range)))
+ return -EFAULT;
+
+ return 0;
+ }
default:
return -ENOTTY;
}
@@ -569,6 +592,7 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case OCFS2_IOC_GROUP_EXTEND:
case OCFS2_IOC_GROUP_ADD:
case OCFS2_IOC_GROUP_ADD64:
+ case FITRIM:
break;
case OCFS2_IOC_REFLINK:
if (copy_from_user(&args, (struct reflink_arguments *)arg,