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| author | Arnd Bergmann <arnd@arndb.de> | 2019-11-04 00:32:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-15 00:32:17 +0300 |
| commit | 7558ea7f5ef69b48474ce3a1b468dde3e0bc7e5b (patch) | |
| tree | 32d1b8a611f9e26823fd8ff733a712995367d887 /fs/nfsd/nfs4layouts.c | |
| parent | fc18aad70b27ccd194aae04aa91a7c2eecbe0835 (diff) | |
| download | linux-7558ea7f5ef69b48474ce3a1b468dde3e0bc7e5b.tar.xz | |
nfsd: fix delay timer on 32-bit architectures
commit 2561c92b12f4f4e386d453556685f75775c0938b upstream.
The nfsd4_cb_layout_done() function takes a 'time_t' value,
multiplied by NSEC_PER_SEC*2 to get a nanosecond value.
This works fine on 64-bit architectures, but on 32-bit, any
value over 1 second results in a signed integer overflow
with unexpected results.
Cast one input to a 64-bit type in order to produce the
same result that we have on 64-bit architectures, regarless
of the type of nfsd4_lease.
Fixes: 6b9b21073d3b ("nfsd: give up on CB_LAYOUTRECALLs after two lease periods")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/nfsd/nfs4layouts.c')
| -rw-r--r-- | fs/nfsd/nfs4layouts.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c index ea45d954e8d7..99add0cf20ff 100644 --- a/fs/nfsd/nfs4layouts.c +++ b/fs/nfsd/nfs4layouts.c @@ -683,7 +683,7 @@ nfsd4_cb_layout_done(struct nfsd4_callback *cb, struct rpc_task *task) /* Client gets 2 lease periods to return it */ cutoff = ktime_add_ns(task->tk_start, - nn->nfsd4_lease * NSEC_PER_SEC * 2); + (u64)nn->nfsd4_lease * NSEC_PER_SEC * 2); if (ktime_before(now, cutoff)) { rpc_delay(task, HZ/100); /* 10 mili-seconds */ |