diff options
author | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:14:13 +0300 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:15:08 +0300 |
commit | 537c2e91d3549e5d6020bb0576cf9b54a845255f (patch) | |
tree | c09e8a1b7d733cde19b0c72678c28fb2bc97ff6b /fs/bcachefs/util.h | |
parent | 237bb5f7f7f55ec5f773469a974c61a49c298625 (diff) | |
parent | cba9ffdb9913dfe6be29f049ce920ce451ce7cc4 (diff) | |
download | linux-537c2e91d3549e5d6020bb0576cf9b54a845255f.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/bcachefs/util.h')
-rw-r--r-- | fs/bcachefs/util.h | 145 |
1 files changed, 33 insertions, 112 deletions
diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index b414736d59a5..175aee3074c7 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -21,6 +21,7 @@ #include "mean_and_variance.h" #include "darray.h" +#include "time_stats.h" struct closure; @@ -53,38 +54,6 @@ static inline size_t buf_pages(void *p, size_t len) PAGE_SIZE); } -static inline void vpfree(void *p, size_t size) -{ - if (is_vmalloc_addr(p)) - vfree(p); - else - free_pages((unsigned long) p, get_order(size)); -} - -static inline void *vpmalloc(size_t size, gfp_t gfp_mask) -{ - return (void *) __get_free_pages(gfp_mask|__GFP_NOWARN, - get_order(size)) ?: - __vmalloc(size, gfp_mask); -} - -static inline void kvpfree(void *p, size_t size) -{ - if (size < PAGE_SIZE) - kfree(p); - else - vpfree(p, size); -} - -static inline void *kvpmalloc(size_t size, gfp_t gfp_mask) -{ - return size < PAGE_SIZE - ? kmalloc(size, gfp_mask) - : vpmalloc(size, gfp_mask); -} - -int mempool_init_kvpmalloc_pool(mempool_t *, int, size_t); - #define HEAP(type) \ struct { \ size_t size, used; \ @@ -97,13 +66,13 @@ struct { \ ({ \ (heap)->used = 0; \ (heap)->size = (_size); \ - (heap)->data = kvpmalloc((heap)->size * sizeof((heap)->data[0]),\ + (heap)->data = kvmalloc((heap)->size * sizeof((heap)->data[0]),\ (gfp)); \ }) #define free_heap(heap) \ do { \ - kvpfree((heap)->data, (heap)->size * sizeof((heap)->data[0])); \ + kvfree((heap)->data); \ (heap)->data = NULL; \ } while (0) @@ -361,84 +330,8 @@ static inline void prt_bdevname(struct printbuf *out, struct block_device *bdev) #endif } -#define NR_QUANTILES 15 -#define QUANTILE_IDX(i) inorder_to_eytzinger0(i, NR_QUANTILES) -#define QUANTILE_FIRST eytzinger0_first(NR_QUANTILES) -#define QUANTILE_LAST eytzinger0_last(NR_QUANTILES) - -struct bch2_quantiles { - struct bch2_quantile_entry { - u64 m; - u64 step; - } entries[NR_QUANTILES]; -}; - -struct bch2_time_stat_buffer { - unsigned nr; - struct bch2_time_stat_buffer_entry { - u64 start; - u64 end; - } entries[32]; -}; - -struct bch2_time_stats { - spinlock_t lock; - /* all fields are in nanoseconds */ - u64 min_duration; - u64 max_duration; - u64 total_duration; - u64 max_freq; - u64 min_freq; - u64 last_event; - struct bch2_quantiles quantiles; - - struct mean_and_variance duration_stats; - struct mean_and_variance_weighted duration_stats_weighted; - struct mean_and_variance freq_stats; - struct mean_and_variance_weighted freq_stats_weighted; - struct bch2_time_stat_buffer __percpu *buffer; -}; - -#ifndef CONFIG_BCACHEFS_NO_LATENCY_ACCT -void __bch2_time_stats_update(struct bch2_time_stats *stats, u64, u64); - -static inline void bch2_time_stats_update(struct bch2_time_stats *stats, u64 start) -{ - __bch2_time_stats_update(stats, start, local_clock()); -} - -static inline bool track_event_change(struct bch2_time_stats *stats, - u64 *start, bool v) -{ - if (v != !!*start) { - if (!v) { - bch2_time_stats_update(stats, *start); - *start = 0; - } else { - *start = local_clock() ?: 1; - return true; - } - } - - return false; -} -#else -static inline void __bch2_time_stats_update(struct bch2_time_stats *stats, u64 start, u64 end) {} -static inline void bch2_time_stats_update(struct bch2_time_stats *stats, u64 start) {} -static inline bool track_event_change(struct bch2_time_stats *stats, - u64 *start, bool v) -{ - bool ret = v && !*start; - *start = v; - return ret; -} -#endif - void bch2_time_stats_to_text(struct printbuf *, struct bch2_time_stats *); -void bch2_time_stats_exit(struct bch2_time_stats *); -void bch2_time_stats_init(struct bch2_time_stats *); - #define ewma_add(ewma, val, weight) \ ({ \ typeof(ewma) _ewma = (ewma); \ @@ -788,8 +681,15 @@ static inline void __move_gap(void *array, size_t element_size, } /* Move the gap in a gap buffer: */ -#define move_gap(_array, _nr, _size, _old_gap, _new_gap) \ - __move_gap(_array, sizeof(_array[0]), _nr, _size, _old_gap, _new_gap) +#define move_gap(_d, _new_gap) \ +do { \ + BUG_ON(_new_gap > (_d)->nr); \ + BUG_ON((_d)->gap > (_d)->nr); \ + \ + __move_gap((_d)->data, sizeof((_d)->data[0]), \ + (_d)->nr, (_d)->size, (_d)->gap, _new_gap); \ + (_d)->gap = _new_gap; \ +} while (0) #define bubble_sort(_base, _nr, _cmp) \ do { \ @@ -876,4 +776,25 @@ static inline bool qstr_eq(const struct qstr l, const struct qstr r) void bch2_darray_str_exit(darray_str *); int bch2_split_devs(const char *, darray_str *); +#ifdef __KERNEL__ + +__must_check +static inline int copy_to_user_errcode(void __user *to, const void *from, unsigned long n) +{ + return copy_to_user(to, from, n) ? -EFAULT : 0; +} + +__must_check +static inline int copy_from_user_errcode(void *to, const void __user *from, unsigned long n) +{ + return copy_from_user(to, from, n) ? -EFAULT : 0; +} + +#endif + +static inline void __set_bit_le64(size_t bit, __le64 *addr) +{ + addr[bit / 64] |= cpu_to_le64(BIT_ULL(bit % 64)); +} + #endif /* _BCACHEFS_UTIL_H */ |