busybox: update to v1.16.1 (based on v1.16.0 update patch from Peter Wagner)

[openwrt/staging/dedeckeh.git] / package / busybox / config / modutils / Config.in

diff --git a/package/busybox/config/modutils/Config.in b/package/busybox/config/modutils/Config.in
index 9ec54b1e924125cadd16c73736290aec1a3ce40f..db515b547e646d9c1a03da09c9147b28744c2ee5 100644 (file)
--- a/package/busybox/config/modutils/Config.in
+++ b/package/busybox/config/modutils/Config.in
@@ -121,6 +121,22 @@ config BUSYBOX_CONFIG_FEATURE_2_4_MODULES
          This increases size considerably. Say N unless you plan
          to run ancient kernels.
 
+config BUSYBOX_CONFIG_FEATURE_INSMOD_TRY_MMAP
+       bool "Try to load module from a mmap'ed area"
+       default n
+       depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE_SMALL
+       help
+         This option causes module loading code to try to mmap
+         module first. If it does not work (for example,
+         it does not work for compressed modules), module will be read
+         (and unpacked if needed) into a memory block allocated by malloc.
+
+         The only case when mmap works but malloc does not is when
+         you are trying to load a big module on a very memory-constrained
+         machine. Malloc will momentarily need 2x as much memory as mmap.
+
+         Choosing N saves about 250 bytes of code (on 32-bit x86).
+
 config BUSYBOX_CONFIG_FEATURE_INSMOD_VERSION_CHECKING
        bool "Enable module version checking"
        default n