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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-03-30 13:40:27 -0400 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-03-30 13:42:33 -0400 |
| commit | df59d0a461bc5935232bf56a279e4d7a71c566a5 (patch) | |
| tree | f3997bffd62f1508714bfd896fdaee4e89b7d4b7 | |
| parent | 3012110d71f41410932924e1d188f9eb57f1f824 (diff) | |
| download | linux-df59d0a461bc5935232bf56a279e4d7a71c566a5.tar.gz | |
XArray: Add xa_limit_16b
A 16-bit limit is a more common limit than I had realised. Make it generally available. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
| -rw-r--r-- | include/linux/xarray.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/xarray.h b/include/linux/xarray.h index 92c0160b3352..a91e3d90df8a 100644 --- a/include/linux/xarray.h +++ b/include/linux/xarray.h @@ -229,9 +229,10 @@ static inline int xa_err(void *entry) * * This structure is used either directly or via the XA_LIMIT() macro * to communicate the range of IDs that are valid for allocation. - * Two common ranges are predefined for you: + * Three common ranges are predefined for you: * * xa_limit_32b - [0 - UINT_MAX] * * xa_limit_31b - [0 - INT_MAX] + * * xa_limit_16b - [0 - USHRT_MAX] */ struct xa_limit { u32 max; @@ -242,6 +243,7 @@ struct xa_limit { #define xa_limit_32b XA_LIMIT(0, UINT_MAX) #define xa_limit_31b XA_LIMIT(0, INT_MAX) +#define xa_limit_16b XA_LIMIT(0, USHRT_MAX) typedef unsigned __bitwise xa_mark_t; #define XA_MARK_0 ((__force xa_mark_t)0U) |