From 80018a9edbc3180ae31a7197f9dacab975a7f5e2 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 27 Sep 2015 16:45:24 -0400 Subject: [PATCH] staging/lustre: use 64-bit times in ptlrpc_enc_page_pool ptlrpc_enc_page_pool computes time deltas using 'long' values from get_seconds(). This is probably safe beyond y2038, but it's better to go use monotonic times and 64-bit here for consistency. Signed-off-by: Arnd Bergmann Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- .../staging/lustre/lustre/ptlrpc/sec_bulk.c | 24 +++++++++---------- 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c index 2ee3e8b2e879..56dab9db4157 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c @@ -92,8 +92,8 @@ static struct ptlrpc_enc_page_pool { unsigned long epp_idle_idx; /* last shrink time due to mem tight */ - long epp_last_shrink; - long epp_last_access; + time64_t epp_last_shrink; + time64_t epp_last_access; /* * in-pool pages bookkeeping @@ -153,8 +153,8 @@ int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v) page_pools.epp_total_pages, page_pools.epp_free_pages, page_pools.epp_idle_idx, - get_seconds() - page_pools.epp_last_shrink, - get_seconds() - page_pools.epp_last_access, + (long)(ktime_get_seconds() - page_pools.epp_last_shrink), + (long)(ktime_get_seconds() - page_pools.epp_last_access), page_pools.epp_st_max_pages, page_pools.epp_st_grows, page_pools.epp_st_grow_fails, @@ -226,7 +226,7 @@ static unsigned long enc_pools_shrink_count(struct shrinker *s, * if no pool access for a long time, we consider it's fully idle. * a little race here is fine. */ - if (unlikely(get_seconds() - page_pools.epp_last_access > + if (unlikely(ktime_get_seconds() - page_pools.epp_last_access > CACHE_QUIESCENT_PERIOD)) { spin_lock(&page_pools.epp_lock); page_pools.epp_idle_idx = IDLE_IDX_MAX; @@ -253,7 +253,7 @@ static unsigned long enc_pools_shrink_scan(struct shrinker *s, (long)sc->nr_to_scan, page_pools.epp_free_pages); page_pools.epp_st_shrinks++; - page_pools.epp_last_shrink = get_seconds(); + page_pools.epp_last_shrink = ktime_get_seconds(); } spin_unlock(&page_pools.epp_lock); @@ -261,7 +261,7 @@ static unsigned long enc_pools_shrink_scan(struct shrinker *s, * if no pool access for a long time, we consider it's fully idle. * a little race here is fine. */ - if (unlikely(get_seconds() - page_pools.epp_last_access > + if (unlikely(ktime_get_seconds() - page_pools.epp_last_access > CACHE_QUIESCENT_PERIOD)) { spin_lock(&page_pools.epp_lock); page_pools.epp_idle_idx = IDLE_IDX_MAX; @@ -457,7 +457,7 @@ static inline void enc_pools_wakeup(void) } } -static int enc_pools_should_grow(int page_needed, long now) +static int enc_pools_should_grow(int page_needed, time64_t now) { /* don't grow if someone else is growing the pools right now, * or the pools has reached its full capacity @@ -521,7 +521,7 @@ again: if (tick == 0) tick = cfs_time_current(); - now = get_seconds(); + now = ktime_get_seconds(); page_pools.epp_st_missings++; page_pools.epp_pages_short += desc->bd_iov_count; @@ -600,7 +600,7 @@ again: this_idle) / (IDLE_IDX_WEIGHT + 1); - page_pools.epp_last_access = get_seconds(); + page_pools.epp_last_access = ktime_get_seconds(); spin_unlock(&page_pools.epp_lock); return 0; @@ -725,8 +725,8 @@ int sptlrpc_enc_pool_init(void) page_pools.epp_growing = 0; page_pools.epp_idle_idx = 0; - page_pools.epp_last_shrink = get_seconds(); - page_pools.epp_last_access = get_seconds(); + page_pools.epp_last_shrink = ktime_get_seconds(); + page_pools.epp_last_access = ktime_get_seconds(); spin_lock_init(&page_pools.epp_lock); page_pools.epp_total_pages = 0; -- 2.30.2