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| author | Eric Blake <eblake@redhat.com> | 2016-04-05 21:35:02 -0600 |
|---|---|---|
| committer | Timothy Pearson <tpearson@raptorengineering.com> | 2019-11-29 20:01:35 -0600 |
| commit | 8c7325cf057346649cecc595c0db856121291a8e (patch) | |
| tree | a33427a229e03371b6ac482d9fbf51b26d17d827 /nbd | |
| parent | 2f95ab51138697419baf25ad687c9920a83d91c1 (diff) | |
| download | hqemu-8c7325cf057346649cecc595c0db856121291a8e.zip hqemu-8c7325cf057346649cecc595c0db856121291a8e.tar.gz | |
nbd: Return correct error for write to read-only export
The NBD Protocol requires that servers should send EPERM for
attempts to write (or trim) a read-only export. We were
correct for TRIM (blk_co_discard() gave EPERM); but were
manually setting EROFS which then got mapped to EINVAL over
the wire on writes.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1459913704-19949-2-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'nbd')
| -rw-r--r-- | nbd/server.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/nbd/server.c b/nbd/server.c index b95571b..98e3957 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -26,6 +26,7 @@ static int system_errno_to_nbd_errno(int err) case 0: return NBD_SUCCESS; case EPERM: + case EROFS: return NBD_EPERM; case EIO: return NBD_EIO; |
