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authorSage Weil <sage@inktank.com>2012-05-08 02:33:36 +0400
committerSage Weil <sage@inktank.com>2012-05-08 02:33:36 +0400
commit3469ac1aa3a2f1e2586a412923c414779a0af854 (patch)
treeb271456518130622e6d394cf50939c132f1a1d0d /fs/ceph/ioctl.c
parentcd9d9f5df6098c50726200d4185e9e8da32785b3 (diff)
downloadlinux-3469ac1aa3a2f1e2586a412923c414779a0af854.tar.xz
ceph: drop support for preferred_osd pgs
This was an ill-conceived feature that has been removed from Ceph. Do this gracefully: - reject attempts to specify a preferred_osd via the ioctl - stop exposing this information via virtual xattrs - always fill in -1 for requests, in case we talk to an older server - don't calculate preferred_osd placements/pgids Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'fs/ceph/ioctl.c')
-rw-r--r--fs/ceph/ioctl.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index 790914a598dd..4feab52c5bff 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -26,8 +26,7 @@ static long ceph_ioctl_get_layout(struct file *file, void __user *arg)
l.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
l.object_size = ceph_file_layout_object_size(ci->i_layout);
l.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);
- l.preferred_osd =
- (s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);
+ l.preferred_osd = (s32)-1;
if (copy_to_user(arg, &l, sizeof(l)))
return -EFAULT;
}
@@ -49,6 +48,10 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
if (copy_from_user(&l, arg, sizeof(l)))
return -EFAULT;
+ /* preferred_osd is no longer supported */
+ if (l.preferred_osd != -1)
+ return -EINVAL;
+
/* validate changed params against current layout */
err = ceph_do_getattr(file->f_dentry->d_inode, CEPH_STAT_CAP_LAYOUT);
if (!err) {
@@ -56,8 +59,6 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
nl.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
nl.object_size = ceph_file_layout_object_size(ci->i_layout);
nl.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);
- nl.preferred_osd =
- (s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);
} else
return err;
@@ -69,8 +70,6 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
nl.object_size = l.object_size;
if (l.data_pool)
nl.data_pool = l.data_pool;
- if (l.preferred_osd)
- nl.preferred_osd = l.preferred_osd;
if ((nl.object_size & ~PAGE_MASK) ||
(nl.stripe_unit & ~PAGE_MASK) ||
@@ -106,8 +105,6 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
req->r_args.setlayout.layout.fl_object_size =
cpu_to_le32(l.object_size);
req->r_args.setlayout.layout.fl_pg_pool = cpu_to_le32(l.data_pool);
- req->r_args.setlayout.layout.fl_pg_preferred =
- cpu_to_le32(l.preferred_osd);
parent_inode = ceph_get_dentry_parent_inode(file->f_dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
@@ -171,8 +168,6 @@ static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg)
cpu_to_le32(l.object_size);
req->r_args.setlayout.layout.fl_pg_pool =
cpu_to_le32(l.data_pool);
- req->r_args.setlayout.layout.fl_pg_preferred =
- cpu_to_le32(l.preferred_osd);
err = ceph_mdsc_do_request(mdsc, inode, req);
ceph_mdsc_put_request(req);