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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-01-11 16:43:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-01-11 16:43:28 -0800 |
| commit | 1eb0b69c1064c65b32014c8392e6d076c23dc57c (patch) | |
| tree | 1ba174d2f08eb78ed65f569995e62d694e6a3288 /include/linux | |
| parent | 8904925c10bcd5adc582bd1e4ec3d7f9e13652b2 (diff) | |
| parent | bf2efbc58504f0ab67b8f52e820a8287d0015cbc (diff) | |
Merge bk://gkernel.bkbits.net/libata-2.6
into ppc970.osdl.org:/home/torvalds/v2.6/linux
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/nodemask.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h index 4de843d94147..16475a23efa7 100644 --- a/include/linux/nodemask.h +++ b/include/linux/nodemask.h @@ -38,6 +38,8 @@ * * int first_node(mask) Number lowest set bit, or MAX_NUMNODES * int next_node(node, mask) Next node past 'node', or MAX_NUMNODES + * int first_unset_node(mask) First node not set in mask, or + * MAX_NUMNODES. * * nodemask_t nodemask_of_node(node) Return nodemask with bit 'node' set * NODE_MASK_ALL Initializer - all bits set @@ -235,6 +237,13 @@ static inline int __next_node(int n, const nodemask_t *srcp, int nbits) m; \ }) +#define first_unset_node(mask) __first_unset_node(&(mask)) +static inline int __first_unset_node(const nodemask_t *maskp) +{ + return min_t(int,MAX_NUMNODES, + find_first_zero_bit(maskp->bits, MAX_NUMNODES)); +} + #define NODE_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(MAX_NUMNODES) #if MAX_NUMNODES <= BITS_PER_LONG |