From b5345d6ceeee3ef378e4800f538c8fc06bf9de48 Mon Sep 17 00:00:00 2001 From: Naohiro Aota Date: Wed, 26 Apr 2023 00:19:40 +0900 Subject: btrfs: export bitmap_test_range_all_{set,zero} bitmap_test_range_all_{set,zero} defined in subpage.c are useful for other components. Move them to misc.h and use them in zoned.c. Also, as find_next{,_zero}_bit take/return "unsigned long" instead of "unsigned int", convert the type to "unsigned long". While at it, also rewrite the "if (...) return true; else return false;" pattern and add const to the input bitmap. Signed-off-by: Naohiro Aota Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/misc.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'fs/btrfs/misc.h') diff --git a/fs/btrfs/misc.h b/fs/btrfs/misc.h index 768583a440e1..005751a12911 100644 --- a/fs/btrfs/misc.h +++ b/fs/btrfs/misc.h @@ -143,4 +143,24 @@ static inline struct rb_node *rb_simple_insert(struct rb_root *root, u64 bytenr, return NULL; } +static inline bool bitmap_test_range_all_set(const unsigned long *addr, + unsigned long start, + unsigned long nbits) +{ + unsigned long found_zero; + + found_zero = find_next_zero_bit(addr, start + nbits, start); + return (found_zero == start + nbits); +} + +static inline bool bitmap_test_range_all_zero(const unsigned long *addr, + unsigned long start, + unsigned long nbits) +{ + unsigned long found_set; + + found_set = find_next_bit(addr, start + nbits, start); + return (found_set == start + nbits); +} + #endif -- cgit v1.2.3-73-gaa49b