Baptiste Lepers 9c8d416d7a pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds ...

[ Upstream commit a2915fa062 ]

_nfs4_pnfs_v3/v4_ds_connect do
   some work
   smp_wmb
   ds->ds_clp = clp;

And nfs4_ff_layout_prepare_ds currently does
   smp_rmb
   if(ds->ds_clp)
      ...

This patch places the smp_rmb after the if. This ensures that following
reads only happen once nfs4_ff_layout_prepare_ds has checked that data
has been properly initialized.

Fixes: d67ae825a5 ("pnfs/flexfiles: Add the FlexFile Layout Driver")
Signed-off-by: Baptiste Lepers <baptiste.lepers@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-11-17 11:04:33 +01:00

..

flexfilelayout.c

pNFS/flexfiles: fix incorrect size check in decode_nfs_fh()

2021-04-14 09:36:29 -04:00

flexfilelayout.h

pNFS/flexfiles: Simplify allocation of the mirror array

2020-03-26 10:52:04 -04:00

flexfilelayoutdev.c

pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds

2021-11-17 11:04:33 +01:00

Makefile

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00