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nfsd: use ktime_get_seconds() for timestamps

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[ Upstream commit b3f255ef6bffc18a28c3b6295357f2a3380c033f ]

The delegation logic in nfsd uses the somewhat inefficient
seconds_since_boot() function to record time intervals.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Stable-dep-of: 45bb63ed20e0 ("nfsd: fix delegation_blocked() to block correctly for at least 30 seconds")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Arnd Bergmann 2017-10-20 11:25:34 +02:00 • committed by Greg Kroah-Hartman
parent fe5e9182d3
commit 8843824b67
1 changed files with 5 additions and 5 deletions
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10
fs/nfsd/nfs4state.c
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@ -832,7 +832,7 @@ static void nfs4_free_deleg(struct nfs4_stid *stid)
static DEFINE_SPINLOCK(blocked_delegations_lock);
static struct bloom_pair {
int entries, old_entries;
time_t swap_time;
time64_t swap_time;
int new; /* index into 'set' */
DECLARE_BITMAP(set[2], 256);
} blocked_delegations;
@ -844,15 +844,15 @@ static int delegation_blocked(struct knfsd_fh *fh)
if (bd->entries == 0)
return 0;
if (seconds_since_boot() - bd->swap_time > 30) {
if (ktime_get_seconds() - bd->swap_time > 30) {
spin_lock(&blocked_delegations_lock);
if (seconds_since_boot() - bd->swap_time > 30) {
if (ktime_get_seconds() - bd->swap_time > 30) {
bd->entries -= bd->old_entries;
bd->old_entries = bd->entries;
memset(bd->set[bd->new], 0,
sizeof(bd->set[0]));
bd->new = 1-bd->new;
bd->swap_time = seconds_since_boot();
bd->swap_time = ktime_get_seconds();
}
spin_unlock(&blocked_delegations_lock);
}
@ -882,7 +882,7 @@ static void block_delegations(struct knfsd_fh *fh)
__set_bit((hash>>8)&255, bd->set[bd->new]);
__set_bit((hash>>16)&255, bd->set[bd->new]);
if (bd->entries == 0)
bd->swap_time = seconds_since_boot();
bd->swap_time = ktime_get_seconds();
bd->entries += 1;
spin_unlock(&blocked_delegations_lock);
}