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authorSunil Mushran <sunil.mushran@oracle.com>2007-07-30 11:02:50 -0700
committerMark Fasheh <mark.fasheh@oracle.com>2007-08-09 17:27:38 -0700
commitce17204ae633001ef41318d487282730e96b9522 (patch)
tree8e60bc0a652ce19f47b6e9ab52e2ebe2b1dad51a /fs/ocfs2/cluster
parent480214d71f1972756473415d31953647952400fb (diff)
downloadop-kernel-dev-ce17204ae633001ef41318d487282730e96b9522.zip
op-kernel-dev-ce17204ae633001ef41318d487282730e96b9522.tar.gz
ocfs2: Retry sendpage() if it returns EAGAIN
Instead of treating EAGAIN, returned from sendpage(), as an error, this patch retries the operation. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/cluster')
-rw-r--r--fs/ocfs2/cluster/tcp.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index f0bdfd9..685c180 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -854,17 +854,25 @@ static void o2net_sendpage(struct o2net_sock_container *sc,
struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num);
ssize_t ret;
-
- mutex_lock(&sc->sc_send_lock);
- ret = sc->sc_sock->ops->sendpage(sc->sc_sock,
- virt_to_page(kmalloced_virt),
- (long)kmalloced_virt & ~PAGE_MASK,
- size, MSG_DONTWAIT);
- mutex_unlock(&sc->sc_send_lock);
- if (ret != size) {
+ while (1) {
+ mutex_lock(&sc->sc_send_lock);
+ ret = sc->sc_sock->ops->sendpage(sc->sc_sock,
+ virt_to_page(kmalloced_virt),
+ (long)kmalloced_virt & ~PAGE_MASK,
+ size, MSG_DONTWAIT);
+ mutex_unlock(&sc->sc_send_lock);
+ if (ret == size)
+ break;
+ if (ret == (ssize_t)-EAGAIN) {
+ mlog(0, "sendpage of size %zu to " SC_NODEF_FMT
+ " returned EAGAIN\n", size, SC_NODEF_ARGS(sc));
+ cond_resched();
+ continue;
+ }
mlog(ML_ERROR, "sendpage of size %zu to " SC_NODEF_FMT
" failed with %zd\n", size, SC_NODEF_ARGS(sc), ret);
o2net_ensure_shutdown(nn, sc, 0);
+ break;
}
}
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