LU-6421 osc: fix bug when setting max_pages_per_rpc

[fs/lustre-release.git] / lustre / osc / lproc_osc.c

diff --git a/lustre/osc/lproc_osc.c b/lustre/osc/lproc_osc.c
index f452dc1..73ec748 100644 (file)
--- a/lustre/osc/lproc_osc.c
+++ b/lustre/osc/lproc_osc.c
@@ -523,7 +523,8 @@ static ssize_t osc_obd_max_pages_per_rpc_seq_write(struct file *file,
        chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_CACHE_SHIFT)) - 1);
        /* max_pages_per_rpc must be chunk aligned */
        val = (val + ~chunk_mask) & chunk_mask;
-       if (val == 0 || val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT) {
+       if (val == 0 || (ocd->ocd_brw_size != 0 &&
+                        val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT)) {
                LPROCFS_CLIMP_EXIT(dev);
                return -ERANGE;
        }