Author: mmacy
Date: Wed Feb 20 20:48:10 2019
New Revision: 344384
URL: https://svnweb.freebsd.org/changeset/base/344384

Log:
  Add non-sleepable strdup variant strdup_flags
  
  debugfs expects to do non-sleepable allocations
  
  Reviewed by:  hps@
  MFC after:    1 week
  Sponsored by: iX Systems
  Differential Revision:        https://reviews.freebsd.org/D19259

Modified:
  head/sys/libkern/strdup.c
  head/sys/sys/libkern.h

Modified: head/sys/libkern/strdup.c
==============================================================================
--- head/sys/libkern/strdup.c   Wed Feb 20 20:34:43 2019        (r344383)
+++ head/sys/libkern/strdup.c   Wed Feb 20 20:48:10 2019        (r344384)
@@ -40,13 +40,22 @@ __FBSDID("$FreeBSD$");
 #include <sys/malloc.h>
 
 char *
-strdup(const char *string, struct malloc_type *type)
+strdup_flags(const char *string, struct malloc_type *type, int flags)
 {
        size_t len;
        char *copy;
 
        len = strlen(string) + 1;
-       copy = malloc(len, type, M_WAITOK);
+       copy = malloc(len, type, flags);
+       if (copy == NULL)
+               return (NULL);
        bcopy(string, copy, len);
        return (copy);
+}
+
+char *
+strdup(const char *string, struct malloc_type *type)
+{
+
+       return (strdup_flags(string, type, M_WAITOK));
 }

Modified: head/sys/sys/libkern.h
==============================================================================
--- head/sys/sys/libkern.h      Wed Feb 20 20:34:43 2019        (r344383)
+++ head/sys/sys/libkern.h      Wed Feb 20 20:48:10 2019        (r344384)
@@ -173,6 +173,7 @@ char        *strchr(const char *, int);
 int     strcmp(const char *, const char *);
 char   *strcpy(char * __restrict, const char * __restrict);
 size_t  strcspn(const char * __restrict, const char * __restrict) __pure;
+char   *strdup_flags(const char *__restrict, struct malloc_type *, int);
 char   *strdup(const char *__restrict, struct malloc_type *);
 char   *strncat(char *, const char *, size_t);
 char   *strndup(const char *__restrict, size_t, struct malloc_type *);
_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "[email protected]"

Reply via email to