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block/raw-posix: create translate_err helper to merge errno values 

actually the code
    if (ret == -ENODEV || ret == -ENOSYS || ret == -EOPNOTSUPP ||
        ret == -ENOTTY) {
        ret = -ENOTSUP;
    }
is present twice and will be added a couple more times. Create helper
for this.

CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Peter Lieven <pl@kamp.de>
CC: Fam Zheng <famz@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Denis V. Lunev 2015-01-30 11:42:11 +03:00 committed by Kevin Wolf
parent a71754e5b0
commit 1486df0e31
1 changed files with 13 additions and 6 deletions
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19
block/raw-posix.c
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@ -893,6 +893,15 @@ static int xfs_discard(BDRVRawState *s, int64_t offset, uint64_t bytes)
}
#endif
static int translate_err(int err)
{
if (err == -ENODEV || err == -ENOSYS || err == -EOPNOTSUPP ||
err == -ENOTTY) {
err = -ENOTSUP;
}
return err;
}
static ssize_t handle_aiocb_write_zeroes(RawPosixAIOData *aiocb)
{
int ret = -EOPNOTSUPP;
@ -921,10 +930,9 @@ static ssize_t handle_aiocb_write_zeroes(RawPosixAIOData *aiocb)
#endif
}
if (ret == -ENODEV || ret == -ENOSYS || ret == -EOPNOTSUPP ||
ret == -ENOTTY) {
ret = translate_err(ret);
if (ret == -ENOTSUP) {
s->has_write_zeroes = false;
ret = -ENOTSUP;
}
return ret;
}
@ -968,10 +976,9 @@ static ssize_t handle_aiocb_discard(RawPosixAIOData *aiocb)
#endif
}
if (ret == -ENODEV || ret == -ENOSYS || ret == -EOPNOTSUPP ||
ret == -ENOTTY) {
ret = translate_err(ret);
if (ret == -ENOTSUP) {
s->has_discard = false;
ret = -ENOTSUP;
}
return ret;
}