diff options
| author | Matthew Sakai <msakai@redhat.com> | 2023-11-16 19:44:01 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2024-02-20 13:43:13 -0500 |
| commit | 03d1089e1dc7f05afb2bfc76bffc71de17e4297e (patch) | |
| tree | ef710d43041426d0d231556db3936bbab6ddfcf4 /drivers/md/dm-vdo/string-utils.c | |
| parent | 46766d4888ffdfd2bce91a6879bd6285a92a4881 (diff) | |
dm vdo: add basic logging and support utilities
Add various support utilities for the vdo target and deduplication index,
including logging utilities, string and time management, and index-specific
error codes.
Co-developed-by: J. corwin Coburn <corwin@hurlbutnet.net>
Signed-off-by: J. corwin Coburn <corwin@hurlbutnet.net>
Co-developed-by: Michael Sclafani <dm-devel@lists.linux.dev>
Signed-off-by: Michael Sclafani <dm-devel@lists.linux.dev>
Co-developed-by: Thomas Jaskiewicz <tom@jaskiewicz.us>
Signed-off-by: Thomas Jaskiewicz <tom@jaskiewicz.us>
Co-developed-by: Ken Raeburn <raeburn@redhat.com>
Signed-off-by: Ken Raeburn <raeburn@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers/md/dm-vdo/string-utils.c')
| -rw-r--r-- | drivers/md/dm-vdo/string-utils.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/md/dm-vdo/string-utils.c b/drivers/md/dm-vdo/string-utils.c new file mode 100644 index 000000000000..a584b37bb70c --- /dev/null +++ b/drivers/md/dm-vdo/string-utils.c @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2023 Red Hat + */ + +#include "string-utils.h" + +#include "errors.h" +#include "logger.h" +#include "memory-alloc.h" +#include "permassert.h" +#include "uds.h" + +char *uds_append_to_buffer(char *buffer, char *buf_end, const char *fmt, ...) +{ + va_list args; + size_t n; + + va_start(args, fmt); + n = vsnprintf(buffer, buf_end - buffer, fmt, args); + if (n >= (size_t) (buf_end - buffer)) + buffer = buf_end; + else + buffer += n; + va_end(args); + + return buffer; +} |