diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2016-09-14 20:53:26 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-09-14 20:53:26 +0200 |
| commit | 16217dc79dbc599b110dda26d0421df47904bba4 (patch) | |
| tree | 98df3c18b14284b8a6f8b04de12e0b7dde5a55fa /include/linux/stringhash.h | |
| parent | ecb3f394c5dba897d215a5422f1b363e93e2ce4e (diff) | |
| parent | 723344dd0b2aa10ef9d28fe7f35d594d3e64f0f9 (diff) | |
Merge tag 'irqchip-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Merge the first drop of irqchip updates for 4.9 from Marc Zyngier:
- ACPI IORT core code
- IORT support for the GICv3 ITS
- A few of GIC cleanups
Diffstat (limited to 'include/linux/stringhash.h')
| -rw-r--r-- | include/linux/stringhash.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/linux/stringhash.h b/include/linux/stringhash.h index 451771d9b9c0..7c2d95170d01 100644 --- a/include/linux/stringhash.h +++ b/include/linux/stringhash.h @@ -3,6 +3,7 @@ #include <linux/compiler.h> /* For __pure */ #include <linux/types.h> /* For u32, u64 */ +#include <linux/hash.h> /* * Routines for hashing strings of bytes to a 32-bit hash value. @@ -34,7 +35,7 @@ */ /* Hash courtesy of the R5 hash in reiserfs modulo sign bits */ -#define init_name_hash() 0 +#define init_name_hash(salt) (unsigned long)(salt) /* partial hash update function. Assume roughly 4 bits per character */ static inline unsigned long @@ -45,11 +46,12 @@ partial_name_hash(unsigned long c, unsigned long prevhash) /* * Finally: cut down the number of bits to a int value (and try to avoid - * losing bits) + * losing bits). This also has the property (wanted by the dcache) + * that the msbits make a good hash table index. */ static inline unsigned long end_name_hash(unsigned long hash) { - return (unsigned int)hash; + return __hash_32((unsigned int)hash); } /* @@ -60,7 +62,7 @@ static inline unsigned long end_name_hash(unsigned long hash) * * If not set, this falls back to a wrapper around the preceding. */ -extern unsigned int __pure full_name_hash(const char *, unsigned int); +extern unsigned int __pure full_name_hash(const void *salt, const char *, unsigned int); /* * A hash_len is a u64 with the hash of a string in the low @@ -71,6 +73,6 @@ extern unsigned int __pure full_name_hash(const char *, unsigned int); #define hashlen_create(hash, len) ((u64)(len)<<32 | (u32)(hash)) /* Return the "hash_len" (hash and length) of a null-terminated string */ -extern u64 __pure hashlen_string(const char *name); +extern u64 __pure hashlen_string(const void *salt, const char *name); #endif /* __LINUX_STRINGHASH_H */ |
