pnfsblock: note written INVAL areas for layoutcommit
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 2e37382..21efef7 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -329,6 +329,30 @@
return PNFS_NOT_ATTEMPTED;
}
+static void mark_extents_written(struct pnfs_block_layout *bl,
+ __u64 offset, __u32 count)
+{
+ sector_t isect, end;
+ struct pnfs_block_extent *be;
+
+ dprintk("%s(%llu, %u)\n", __func__, offset, count);
+ if (count == 0)
+ return;
+ isect = (offset & (long)(PAGE_CACHE_MASK)) >> SECTOR_SHIFT;
+ end = (offset + count + PAGE_CACHE_SIZE - 1) & (long)(PAGE_CACHE_MASK);
+ end >>= SECTOR_SHIFT;
+ while (isect < end) {
+ sector_t len;
+ be = bl_find_get_extent(bl, isect, NULL);
+ BUG_ON(!be); /* FIXME */
+ len = min(end, be->be_f_offset + be->be_length) - isect;
+ if (be->be_state == PNFS_BLOCK_INVALID_DATA)
+ bl_mark_for_commit(be, isect, len); /* What if fails? */
+ isect += len;
+ bl_put_extent(be);
+ }
+}
+
/* This is basically copied from mpage_end_io_read */
static void bl_end_io_write(struct bio *bio, int err)
{
@@ -355,6 +379,14 @@
dprintk("%s enter\n", __func__);
task = container_of(work, struct rpc_task, u.tk_work);
wdata = container_of(task, struct nfs_write_data, task);
+ if (!wdata->task.tk_status) {
+ /* Marks for LAYOUTCOMMIT */
+ /* BUG - this should be called after each bio, not after
+ * all finish, unless have some way of storing success/failure
+ */
+ mark_extents_written(BLK_LSEG2EXT(wdata->lseg),
+ wdata->args.offset, wdata->args.count);
+ }
pnfs_ld_write_done(wdata);
}