LU-11546 utils: enable large_dir for ldiskfs

Format MDT with "large_dir" option by default,
to get over the 10M-entry limit for the directories.

Signed-off-by: Li Dongyang <dongyangli@ddn.com>
Change-Id: Ie51e6ce28b5f00adc9958de24794a760d9b43b77
Reviewed-on: https://review.whamcloud.com/36555
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Artem Blagodarenko <c17828@cray.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Stephan Thiell <sthiell@stanford.edu>

diff --git a/lustre/utils/libmount_utils_ldiskfs.c b/lustre/utils/libmount_utils_ldiskfs.c
index 60179b6..56dd609 100644 (file)
--- a/lustre/utils/libmount_utils_ldiskfs.c
+++ b/lustre/utils/libmount_utils_ldiskfs.c
@@ -611,6 +611,10 @@ static int enable_default_ext4_features(struct mkfs_opts *mop, char *anchor,
        if (IS_MDT(&mop->mo_ldd) && is_e2fsprogs_feature_supp("-O ea_inode"))
                append_unique(anchor, ",", "ea_inode", NULL, maxbuflen);
 
        if (IS_MDT(&mop->mo_ldd) && is_e2fsprogs_feature_supp("-O ea_inode"))
                append_unique(anchor, ",", "ea_inode", NULL, maxbuflen);
 

+       /* Allow more than 10M directory entries */
+       if (IS_MDT(&mop->mo_ldd) && is_e2fsprogs_feature_supp("-O large_dir"))
+               append_unique(anchor, ",", "large_dir", NULL, maxbuflen);
+

        /* Cluster inode/block bitmaps and inode table for more efficient IO.
         * Align the flex groups on a 1MB boundary for better performance. */
        /* This -O feature needs to go last, since it adds the "-G" option. */
        /* Cluster inode/block bitmaps and inode table for more efficient IO.
         * Align the flex groups on a 1MB boundary for better performance. */
        /* This -O feature needs to go last, since it adds the "-G" option. */