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author | Eric Blake <eblake@redhat.com> | 2017-10-27 12:40:26 +0200 |
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committer | Eric Blake <eblake@redhat.com> | 2017-10-30 21:07:21 +0100 |
commit | e7a78d0eff820b56d33be31af1bb49e2948374fd (patch) | |
tree | 89887ad46bd17d537a529b25d448271124ac174b /nbd/common.c | |
parent | abf6e752e55b2f5afb48303429dea2db7c3a62de (diff) | |
download | qemu-e7a78d0eff820b56d33be31af1bb49e2948374fd.zip qemu-e7a78d0eff820b56d33be31af1bb49e2948374fd.tar.gz qemu-e7a78d0eff820b56d33be31af1bb49e2948374fd.tar.bz2 |
nbd: Include error names in trace messages
NBD errors were originally sent over the wire based on Linux errno
values; but not all the world is Linux, and not all platforms share
the same values. Since a number isn't very easy to decipher on all
platforms, update the trace messages to include the name of NBD
errors being sent/received over the wire. Tweak the trace messages
to be at the point where we are using the NBD error, not the
translation to the host errno values.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20171027104037.8319-2-eblake@redhat.com>
Diffstat (limited to 'nbd/common.c')
-rw-r--r-- | nbd/common.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/nbd/common.c b/nbd/common.c index 59a5316..7456021 100644 --- a/nbd/common.c +++ b/nbd/common.c @@ -148,3 +148,26 @@ const char *nbd_cmd_lookup(uint16_t cmd) return "<unknown>"; } } + + +const char *nbd_err_lookup(int err) +{ + switch (err) { + case NBD_SUCCESS: + return "success"; + case NBD_EPERM: + return "EPERM"; + case NBD_EIO: + return "EIO"; + case NBD_ENOMEM: + return "ENOMEM"; + case NBD_EINVAL: + return "EINVAL"; + case NBD_ENOSPC: + return "ENOSPC"; + case NBD_ESHUTDOWN: + return "ESHUTDOWN"; + default: + return "<unknown>"; + } +} |