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Commit 115ce575 authored by Trond Myklebust's avatar Trond Myklebust
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NFSv4.1: pnfs_layout_io_set_failed must clear invalid lsegs 



If pnfs_layout_io_test_failed() authorises a retry of the failed layoutgets,
we should clear the existing layout segments so that we start afresh. Do
this in pnfs_layout_io_set_failed().

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 3e621214

fs/nfs/pnfs.c

+8 −0
Original line number Diff line number Diff line
@@ -265,10 +265,18 @@ static void 
pnfs_layout_io_set_failed(struct pnfs_layout_hdr *lo, u32 iomode)

{

	struct inode *inode = lo->plh_inode;

	struct pnfs_layout_range range = {

		.iomode = iomode,

		.offset = 0,

		.length = NFS4_MAX_UINT64,

	};

	LIST_HEAD(head);



	spin_lock(&inode->i_lock);

	pnfs_layout_set_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode));

	pnfs_mark_matching_lsegs_invalid(lo, &head, &range);

	spin_unlock(&inode->i_lock);

	pnfs_free_lseg_list(&head);

	dprintk("%s Setting layout IOMODE_%s fail bit\n", __func__,

			iomode == IOMODE_RW ?  "RW" : "READ");

}