AcoSail/kernel_optimize_test
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pNFS: Always set NFS_LAYOUT_RETURN_REQUESTED with lo->plh_return_iomode

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When setting the layout return mode, we must always also set the
NFS_LAYOUT_RETURN_REQUESTED flag to ensure that we send a layoutreturn.
Otherwise pnfs_error_mark_layout_for_return() could set the mode, but
fail to send the layoutreturn because another is already in flight.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2016-02-15 12:56:17 -05:00
parent 2f21596882
commit e0fa0d0189
1 changed files with 1 additions and 2 deletions
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3
fs/nfs/pnfs.c
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@ -1738,6 +1738,7 @@ pnfs_set_plh_return_iomode(struct pnfs_layout_hdr *lo, enum pnfs_iomode iomode)
if (lo->plh_return_iomode != 0)
iomode = IOMODE_ANY;
lo->plh_return_iomode = iomode;
set_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
}
/**
@ -1777,8 +1778,6 @@ pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
remaining++;
set_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags);
pnfs_set_plh_return_iomode(lo, return_range->iomode);
set_bit(NFS_LAYOUT_RETURN_REQUESTED,
&lo->plh_flags);
}
return remaining;
}