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nfsd: fix year-2038 nfs4 state problem

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Someone with a weird time_t happened to notice this, it shouldn't really
manifest till 2038.  It may not be our ownly year-2038 problem.

Reported-by: Aaron Pace <Aaron.Pace@alcatel-lucent.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2015-01-20 11:51:26 -05:00
parent a97c331f9a
commit bbc7f33ac6
1 changed files with 6 additions and 1 deletions
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7
fs/nfsd/nfs4state.c
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@ -1508,7 +1508,12 @@ unhash_session(struct nfsd4_session *ses)
static int
STALE_CLIENTID(clientid_t *clid, struct nfsd_net *nn)
{
if (clid->cl_boot == nn->boot_time)
/*
* We're assuming the clid was not given out from a boot
* precisely 2^32 (about 136 years) before this one. That seems
* a safe assumption:
*/
if (clid->cl_boot == (u32)nn->boot_time)
return 0;
dprintk("NFSD stale clientid (%08x/%08x) boot_time %08lx\n",
clid->cl_boot, clid->cl_id, nn->boot_time);