Bug #38792: return ETIMEDOUT if we meet a timeout in poll - rbd - Ceph

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Bug #38792

closed

return ETIMEDOUT if we meet a timeout in poll

Added by Yang Dongsheng about 5 years ago. Updated almost 5 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Target version:

% Done:

Source:

Tags:

Backport:

luminous,mimic,nautilus

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

27025

Crash signature (v1):

Crash signature (v2):

Description

We don't want to wait on uevent forever, but the return value
of polling in timeout is 0 rather than a negative value.

manpage of poll as below:

RETURN VALUE
On success, a positive number is returned; this is the number of structures which
have nonzero revents fields (in other words, those descriptors with events or errors reported).
A value of 0 indicates that the call timed out and no file descriptors were ready.
On error, -1 is returned, and errno is set appropriately.

Related issues 3 (0 open — 3 closed)