__ffs

Name:__ffs - find first set bit in word*@word: The word to search* Undefined if no bit exists, so code should check against 0 first.

Proto:static __always_inline unsigned long __ffs(unsigned long word)

Type:unsigned long

Parameter:

Type	Parameter	Name
unsigned long	word

235

asm("rep; bsf %1,%0":"=r"(word):"rm"(word))

238

Return word

**Caller**
Name	Describe
radix_tree_find_next_bit	adix_tree_find_next_bit - find the next set bit in a memory region@addr: The address to base the search on@size: The bitmap size in bits@offset: The bitnumber to start searching at Unrollable variant of find_next_bit() for constant size arrays.
xa_store_range	xa_store_range() - Store this entry at a range of indices in the XArray
__ctzsi2
__ctzdi2
_find_next_bit	This is a common helper function for find_next_bit, find_next_zero_bit, and* find_next_and_bit. The differences are:* - The "invert" argument, which is XORed with each fetched word before* searching it for one bits.
gcd	gcd - calculate and return the greatest common divisor of 2 unsigned longs@a: first value@b: second value
assoc_array_insert_mid_shortcut	Handle insertion into the middle of a shortcut.
irq_gc_get_irq_data
__next_base
pcpu_block_update	pcpu_block_update - updates a block given a free area@block: block of interest@start: start offset in block@end: end offset in block Updates a block given a known free area. The region [start, end) is
pcpu_find_zero_area	pcpu_find_zero_area - modified from bitmap_find_next_zero_area_off()@map: the address to base the search on@size: the bitmap size in bits@start: the bitnumber to start searching at@nr: the number of zeroed bits we're looking for*@align_mask: alignment
__free_pages_memory
keyring_diff_objects	Compare the index keys of a pair of objects and determine the bit position* at which they differ - if they differ.
sched_find_first_bit	Every architecture must define this function. It's the fastest* way of searching a 100-bit bitmap. It's guaranteed that at least* one of the 100 bits is cleared.
__ffs64	__ffs64 - find first set bit in a 64 bit word@word: The 64 bit word On 64 bit arches this is a synomyn for __ffs* The result is not defined if no bits are set, so check that @word* is non-zero before calling this.

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