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pNFS: Ensure we check layout validity before marking it for return 

pnfs_error_mark_layout_for_return needs to check that the layout is
valid before calling pnfs_set_plh_return_info().

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
hifive-unleashed-5.1
Trond Myklebust 2017-04-27 15:30:00 -04:00
parent 88bd4f8629
commit bdebfccd0e
1 changed files with 4 additions and 0 deletions
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4
fs/nfs/pnfs.c
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@ -2049,6 +2049,10 @@ void pnfs_error_mark_layout_for_return(struct inode *inode,
bool return_now = false;
spin_lock(&inode->i_lock);
if (!pnfs_layout_is_valid(lo)) {
spin_unlock(&inode->i_lock);
return;
}
pnfs_set_plh_return_info(lo, range.iomode, 0);
/* Block LAYOUTGET */
set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags);