[PATCH] pnfsd-lexp: CONFIG_PNFSD_LEXP_COMMIT_THRU_MDS

[PATCH] pnfsd-lexp: CONFIG_PNFSD_LEXP_COMMIT_THRU_MDS

[Benny Halevy]

Signed-off-by: Benny Halevy <bhalevy@tonian.com>
---
 fs/nfsd/Kconfig      | 7 +++++++
 fs/nfsd/pnfsd_lexp.c | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index d5ceec0..54b828e 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -139,3 +139,10 @@ config PNFSD_LEXP_RETURN_ON_CLOSE
 	default y
 	help
 	  Set return_on_close response flag.
+
+config PNFSD_LEXP_COMMIT_THRU_MDS
+	bool "Reply to LAYOUTGET with commit_thru_mds set to true"
+	depends on PNFSD_LOCAL_EXPORT
+	default n
+	help
+	  Set commit_thru_mds nfl_util response flag.
diff --git a/fs/nfsd/pnfsd_lexp.c b/fs/nfsd/pnfsd_lexp.c
index 33a724c..bcdb80f 100644
--- a/fs/nfsd/pnfsd_lexp.c
+++ b/fs/nfsd/pnfsd_lexp.c
@@ -168,7 +168,11 @@ static int get_stripe_unit(int blocksize)
 	/* Set file layout response args */
 	layout->lg_layout_type = LAYOUT_NFSV4_1_FILES;
 	layout->lg_stripe_type = STRIPE_SPARSE;
+#ifdef CONFIG_PNFSD_LEXP_COMMIT_THRU_MDS
 	layout->lg_commit_through_mds = true;
+#else
+	layout->lg_commit_through_mds = false;
+#endif
 	layout->lg_stripe_unit = get_stripe_unit(inode->i_sb->s_blocksize);
 	layout->lg_fh_length = 1;
 	layout->device_id.sbid = arg->lg_sbid;
-- 
1.7.11.7