Commit bed79935 authored by Adrian Hunter's avatar Adrian Hunter Committed by Artem Bityutskiy
Browse files

UBIFS: allow for sync_fs when read-only 



sync_fs can be called even if the file system is mounted
read-only.  Ensure the commit is not run in that case.

Reported-by: default avatarZoltan Sogor <weth@inf.u-szeged.hu>
Signed-off-by: default avatarAdrian Hunter <ext-adrian.hunter@nokia.com>
parent 403e12ab

fs/ubifs/super.c

+10 −9
Original line number Diff line number Diff line
@@ -420,14 +420,14 @@ static int ubifs_sync_fs(struct super_block *sb, int wait) 
	int i, ret = 0, err;

	long long bud_bytes;



	if (c->jheads)

	if (c->jheads) {

		for (i = 0; i < c->jhead_cnt; i++) {

			err = ubifs_wbuf_sync(&c->jheads[i].wbuf);

			if (err && !ret)

				ret = err;

		}



	/* Commit the journal unless it has too few data */

		/* Commit the journal unless it has too little data */

		spin_lock(&c->buds_lock);

		bud_bytes = c->bud_bytes;

		spin_unlock(&c->buds_lock);
@@ -436,6 +436,7 @@ static int ubifs_sync_fs(struct super_block *sb, int wait) 
			if (err)

				return err;

		}

	}



	/*

	 * We ought to call sync for c->ubi but it does not have one. If it had