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| author | Mike Frysinger | 2005-07-06 04:39:08 +0000 |
|---|---|---|
| committer | Mike Frysinger | 2005-07-06 04:39:08 +0000 |
| commit | 95ef16528cd90023244ee459d865f8770d164ac0 (patch) | |
| tree | 5d071d726cff05f4201e6ced5b77ed6278e82c8c | |
| parent | 72a4c33568561095fe8d43c8b6f07654c3f593a1 (diff) | |
| download | busybox-95ef16528cd90023244ee459d865f8770d164ac0.zip busybox-95ef16528cd90023244ee459d865f8770d164ac0.tar.gz | |
2005-07-05 Shaun Jackman <sjackman@gmail.com>
* init/Config.in (CONFIG_FEATURE_INIT_SWAPON): New option.
* init/init.c (check_memory): Disable the swapon feature unless
CONFIG_FEATURE_INIT_SWAPON is defined.
| -rw-r--r-- | init/Config.in | 8 | ||||
| -rw-r--r-- | init/init.c | 6 |
2 files changed, 14 insertions, 0 deletions
diff --git a/init/Config.in b/init/Config.in index 4465e75..521f8fe 100644 --- a/init/Config.in +++ b/init/Config.in @@ -35,6 +35,14 @@ config CONFIG_FEATURE_INIT_COREDUMPS core file sizes. If this option is disabled, processes will not generate any core files. +config CONFIG_FEATURE_INIT_SWAPON + bool " Should init run swapon if short on memory?" + default y + depends on CONFIG_INIT + help + If the system has less than one megabyte of total memory, init + will run '/sbin/swapon -a' to add swap memory. + config CONFIG_FEATURE_EXTRA_QUIET bool " Should init be _extra_ quiet on boot?" default y diff --git a/init/init.c b/init/init.c index e0e2f19..5281225 100644 --- a/init/init.c +++ b/init/init.c @@ -309,6 +309,7 @@ static void set_term(int fd) tcsetattr(fd, TCSANOW, &tty); } +#ifdef CONFIG_FEATURE_INIT_SWAPON /* How much memory does this machine have? Units are kBytes to avoid overflow on 4GB machines */ static unsigned int check_free_memory(void) @@ -337,6 +338,7 @@ static unsigned int check_free_memory(void) return(result * u); } } +#endif /* CONFIG_FEATURE_INIT_SWAPON */ static void console_init(void) { @@ -910,6 +912,7 @@ static void delete_init_action(struct init_action *action) } } +#ifdef CONFIG_FEATURE_INIT_SWAPON /* Make sure there is enough memory to do something useful. * * Calls "swapon -a" if needed so be sure /etc/fstab is present... */ static void check_memory(void) @@ -937,6 +940,9 @@ static void check_memory(void) message(CONSOLE, "Sorry, your computer does not have enough memory."); loop_forever(); } +#else +# define check_memory() +#endif /* CONFIG_FEATURE_INIT_SWAPON */ /* NOTE that if CONFIG_FEATURE_USE_INITTAB is NOT defined, * then parse_inittab() simply adds in some default |