Function report | 
Source Code:arch\x86\include\asm\bitops.h | 
Create Date:2022-07-28 05:34:11 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:ls - find last set bit in word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffs, but returns the position of the most significant set bit.* fls(value) returns 0 if value is 0 or the position of the last
Proto:static __always_inline int fls(unsigned int x)
Type:int
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| unsigned int | x | 
| 338 | asm("bsrl %1,%0":"=r"(r):"rm"(x), "0"(-1)) | 
| 351 | Return r + 1 | 
| Name | Describe | 
|---|---|
| __clzsi2 | |
| __clzdi2 | |
| full_fit_alloc_test | |
| div64_u64_rem | div64_u64_rem - unsigned 64bit divide with 64bit divisor and remainder*@dividend: 64bit dividend*@divisor: 64bit divisor*@remainder: 64bit remainder* This implementation is a comparable to algorithm used by div64_u64 | 
| div64_u64 | div64_u64 - unsigned 64bit divide with 64bit divisor*@dividend: 64bit dividend*@divisor: 64bit divisor* This implementation is a modified version of the algorithm proposed* by the book 'Hacker's Delight'. The original source and full proof | 
| reciprocal_value | For a description of the algorithm please have a look at* include/linux/reciprocal_div.h | 
| reciprocal_value_adv | |
| deg | |
| tk_debug_account_sleep_time | |
| tracing_map_array_alloc | |
| longest_prefix_match | longest_prefix_match() - determine the longest prefix*@trie: The trie to get internal sizes from*@node: The node to operate on*@key: The key to compare to @node* Determine the longest prefix of @node that matches the bits in @key. | 
| __pcpu_size_to_slot | |
| lazy_max_pages | |
| calculate_order | |
| get_bitmask_order | |
| fls_long | |
| get_count_order | |
| __ilog2_u32 | -constant log of base 2 calculators* - the arch may override these in asm/bitops.h if they can be implemented* more efficiently than using fls() and fls64()* - the arch is not required to handle n==0 if implementing the fallback | 
| get_order | get_order - Determine the allocation order of a memory size*@size: The size for which to get the order* Determine the allocation order of a particular sized block of memory | 
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