diff options
author | Brian Behlendorf <[email protected]> | 2010-06-24 09:41:59 -0700 |
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committer | Brian Behlendorf <[email protected]> | 2010-06-24 09:41:59 -0700 |
commit | e6de04b73cfaa1b17eee531d472cbbd37c247502 (patch) | |
tree | 88f515ee9b834209c9cc914868959cec64828742 /module/spl/spl-kmem.c | |
parent | 438683c0a9c9a045106f27aca85dc1855d926497 (diff) |
Add kmem_vasprintf function
We might as well have both asprintf() variants. This allows us
to safely pass a va_list through several levels of the stack
using va_copy() instead of va_start().
Diffstat (limited to 'module/spl/spl-kmem.c')
-rw-r--r-- | module/spl/spl-kmem.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/module/spl/spl-kmem.c b/module/spl/spl-kmem.c index 4620eb9bf..a348021d8 100644 --- a/module/spl/spl-kmem.c +++ b/module/spl/spl-kmem.c @@ -239,16 +239,32 @@ EXPORT_SYMBOL(kvasprintf); #endif /* HAVE_KVASPRINTF */ char * +kmem_vasprintf(const char *fmt, va_list ap) +{ + va_list aq; + char *ptr; + + va_copy(aq, ap); + do { + ptr = kvasprintf(GFP_KERNEL, fmt, aq); + } while (ptr == NULL); + va_end(aq); + + return ptr; +} +EXPORT_SYMBOL(kmem_vasprintf); + +char * kmem_asprintf(const char *fmt, ...) { - va_list args; + va_list ap; char *ptr; - va_start(args, fmt); + va_start(ap, fmt); do { - ptr = kvasprintf(GFP_KERNEL, fmt, args); + ptr = kvasprintf(GFP_KERNEL, fmt, ap); } while (ptr == NULL); - va_end(args); + va_end(ap); return ptr; } |