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authorLuis Henriques <lhenriques@suse.com>2018-12-10 10:23:12 +0000
committerIlya Dryomov <idryomov@gmail.com>2018-12-11 18:22:17 +0100
commit6f9718fe41c3a47e4362bddf145e2db6ad7d8e87 (patch)
tree46e8a2a21554cd2c26e8e098f5622f84d9d8f0ab /fs/ceph
parent40e020c129cfc991e8ab4736d2665351ffd1468d (diff)
downloadlinux-stericsson-6f9718fe41c3a47e4362bddf145e2db6ad7d8e87.tar.gz
ceph: make 'nocopyfrom' a default mount option
Since we found a problem with the 'copy-from' operation after objects have been truncated, offloading object copies to OSDs should be discouraged until the issue is fixed. Thus, this patch adds the 'nocopyfrom' mount option to the default mount options which effectily means that remote copies won't be done in copy_file_range unless they are explicitly enabled at mount time. [ Adjust ceph_show_options() accordingly. ] Link: https://tracker.ceph.com/issues/37378 Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/super.c4
-rw-r--r--fs/ceph/super.h4
2 files changed, 5 insertions, 3 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index b5ecd6f50360..4e9a7cc488da 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -563,8 +563,8 @@ static int ceph_show_options(struct seq_file *m, struct dentry *root)
seq_puts(m, ",noacl");
#endif
- if (fsopt->flags & CEPH_MOUNT_OPT_NOCOPYFROM)
- seq_puts(m, ",nocopyfrom");
+ if ((fsopt->flags & CEPH_MOUNT_OPT_NOCOPYFROM) == 0)
+ seq_puts(m, ",copyfrom");
if (fsopt->mds_namespace)
seq_show_option(m, "mds_namespace", fsopt->mds_namespace);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index c005a5400f2e..79a265ba9200 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -42,7 +42,9 @@
#define CEPH_MOUNT_OPT_NOQUOTADF (1<<13) /* no root dir quota in statfs */
#define CEPH_MOUNT_OPT_NOCOPYFROM (1<<14) /* don't use RADOS 'copy-from' op */
-#define CEPH_MOUNT_OPT_DEFAULT CEPH_MOUNT_OPT_DCACHE
+#define CEPH_MOUNT_OPT_DEFAULT \
+ (CEPH_MOUNT_OPT_DCACHE | \
+ CEPH_MOUNT_OPT_NOCOPYFROM)
#define ceph_set_mount_opt(fsc, opt) \
(fsc)->mount_options->flags |= CEPH_MOUNT_OPT_##opt;