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ceph: fix error handling in ceph_get_caps()

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The function return 0 even when interrupted or try_get_cap_refs()
return error.

Fixes: 1199d7da2d ("ceph: simplify arguments and return semantics of try_get_cap_refs")
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng 2019-05-20 09:50:09 +08:00 committed by Ilya Dryomov
parent 3e1d0452ed
commit 7b2f936fc8
1 changed files with 11 additions and 11 deletions
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22
fs/ceph/caps.c
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@ -2738,15 +2738,13 @@ int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
_got = 0;
ret = try_get_cap_refs(ci, need, want, endoff,
false, &_got);
if (ret == -EAGAIN) {
if (ret == -EAGAIN)
continue;
} else if (!ret) {
int err;
if (!ret) {
DEFINE_WAIT_FUNC(wait, woken_wake_function);
add_wait_queue(&ci->i_cap_wq, &wait);
while (!(err = try_get_cap_refs(ci, need, want, endoff,
while (!(ret = try_get_cap_refs(ci, need, want, endoff,
true, &_got))) {
if (signal_pending(current)) {
ret = -ERESTARTSYS;
@ -2756,14 +2754,16 @@ int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
}
remove_wait_queue(&ci->i_cap_wq, &wait);
if (err == -EAGAIN)
if (ret == -EAGAIN)
continue;
}
if (ret == -ESTALE) {
/* session was killed, try renew caps */
ret = ceph_renew_caps(&ci->vfs_inode);
if (ret == 0)
continue;
if (ret < 0) {
if (ret == -ESTALE) {
/* session was killed, try renew caps */
ret = ceph_renew_caps(&ci->vfs_inode);
if (ret == 0)
continue;
}
return ret;
}