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kernel: add BITMAP_NPOS definition

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This commit is contained in:
max 🍓
2023-06-02 19:31:09 +01:00
parent d02d05d922
commit fcf5dc32b9
2 changed files with 5 additions and 4 deletions
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8
ds/bitmap.c
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@@ -88,7 +88,7 @@ unsigned int bitmap_highest_set(unsigned long *map, unsigned long nbits)
}
if (last_word == 0x00) {
return (unsigned int)-1;
return BITMAP_NPOS;
}
return bit_index + (BITS_PER_WORD - __builtin_ctzl(last_word) - 1);
@@ -108,7 +108,7 @@ unsigned int bitmap_highest_clear(unsigned long *map, unsigned long nbits)
}
if (last_word == ~(unsigned long)0) {
return (unsigned int)-1;
return BITMAP_NPOS;
}
if (last_word == 0) {
@@ -134,7 +134,7 @@ unsigned int bitmap_lowest_set(unsigned long *map, unsigned long nbits)
}
if (last_word == 0x00) {
return (unsigned int)-1;
return BITMAP_NPOS;
}
return bit_index + __builtin_clzl(last_word);
@@ -160,7 +160,7 @@ unsigned int bitmap_lowest_clear(unsigned long *map, unsigned long nbits)
}
if (last_word == (~(unsigned long)0)) {
return (unsigned int)-1;
return BITMAP_NPOS;
}
return bit_index + __builtin_clzl(~last_word);