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devicemapper: remove 256 character limit of libdm logs 

This limit is unecessary and can lead to the truncation of long libdm
logs (which is quite annoying).

Fixes: b440ec013 ("device-mapper: Move all devicemapper spew to log through utils.Debugf().")
Signed-off-by: Aleksa Sarai <asarai@suse.de>
This commit is contained in:
Aleksa Sarai 2017-06-28 01:44:31 +10:00
parent 8bc681262f
commit 63328c6882
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GPG Key ID: 9E18AA267DDB8DB4
1 changed files with 9 additions and 7 deletions
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16
pkg/devicemapper/devmapper_wrapper.go
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@ -4,6 +4,7 @@ package devicemapper
/*
#cgo LDFLAGS: -L. -ldevmapper
#define _GNU_SOURCE
#include <libdevmapper.h>
#include <linux/fs.h> // FIXME: present only for BLKGETSIZE64, maybe we can remove it?
@ -12,19 +13,20 @@ extern void DevmapperLogCallback(int level, char *file, int line, int dm_errno_o
static void log_cb(int level, const char *file, int line, int dm_errno_or_class, const char *f, ...)
{
char buffer[256];
va_list ap;
char *buffer = NULL;
va_list ap;
va_start(ap, f);
vsnprintf(buffer, 256, f, ap);
va_end(ap);
va_start(ap, f);
vasprintf(&buffer, f, ap);
va_end(ap);
DevmapperLogCallback(level, (char *)file, line, dm_errno_or_class, buffer);
DevmapperLogCallback(level, (char *)file, line, dm_errno_or_class, buffer);
free(buffer);
}
static void log_with_errno_init()
{
dm_log_with_errno_init(log_cb);
dm_log_with_errno_init(log_cb);
}
*/
import "C"