[systemd-devel] [PATCH] cryptsetup: support discards (TRIM)
Matthew Monaco
matt at 0x01b.net
Sat May 19 08:05:50 PDT 2012
From: Matthew Monaco <matthew.monaco at 0x01b.net>
---
src/cryptsetup/cryptsetup.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index 6d4e965..b26fcca 100644
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -41,6 +41,7 @@ static char *opt_hash = NULL;
static unsigned opt_tries = 0;
static bool opt_readonly = false;
static bool opt_verify = false;
+static bool opt_discards = false;
static usec_t opt_timeout = DEFAULT_TIMEOUT_USEC;
/* Options Debian's crypttab knows we don't:
@@ -98,6 +99,8 @@ static int parse_one_option(const char *option) {
opt_readonly = true;
else if (streq(option, "verify"))
opt_verify = true;
+ else if (streq(option, "allow-discards"))
+ opt_discards = true;
else if (streq(option, "luks"))
opt_type = CRYPT_LUKS1;
else if (streq(option, "plain") ||
@@ -314,6 +317,9 @@ int main(int argc, char *argv[]) {
if (opt_readonly)
flags |= CRYPT_ACTIVATE_READONLY;
+ if (opt_discards)
+ flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+
if (opt_timeout > 0)
until = now(CLOCK_MONOTONIC) + opt_timeout;
else
--
1.7.10.2
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