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nfsd: require an explicit option to enable pNFS

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Turns out sending out layouts to any client is a bad idea if they
can't get at the storage device, so require explicit admin action
to enable pNFS.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Christoph Hellwig 2015-03-30 18:46:29 +02:00 committed by J. Bruce Fields
parent 7890203da2
commit f3f03330de
2 changed files with 2 additions and 2 deletions
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2
fs/nfsd/nfs4layouts.c
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@ -118,7 +118,7 @@ void nfsd4_setup_layout_type(struct svc_export *exp)
{
struct super_block *sb = exp->ex_path.mnt->mnt_sb;
if (exp->ex_flags & NFSEXP_NOPNFS)
if (!(exp->ex_flags & NFSEXP_PNFS))
return;
if (sb->s_export_op->get_uuid &&

2
include/uapi/linux/nfsd/export.h
View file

@ -47,7 +47,7 @@
* exported filesystem.
*/
#define NFSEXP_V4ROOT 0x10000
#define NFSEXP_NOPNFS 0x20000
#define NFSEXP_PNFS 0x20000
/* All flags that we claim to support. (Note we don't support NOACL.) */
#define NFSEXP_ALLFLAGS 0x3FE7F