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dlm: remove kmap/kunmap
The pages used in lowcomms are not highmem, so kmap is not necessary. Cc: Christine Caulfield <ccaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
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1 changed files with 0 additions and 7 deletions
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@ -824,7 +824,6 @@ static void sctp_init_assoc(struct connection *con)
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len = e->len;
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offset = e->offset;
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spin_unlock(&con->writequeue_lock);
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kmap(e->page);
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/* Send the first block off the write queue */
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iov[0].iov_base = page_address(e->page)+offset;
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@ -855,7 +854,6 @@ static void sctp_init_assoc(struct connection *con)
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if (e->len == 0 && e->users == 0) {
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list_del(&e->list);
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kunmap(e->page);
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free_entry(e);
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}
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spin_unlock(&con->writequeue_lock);
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@ -1204,8 +1202,6 @@ void *dlm_lowcomms_get_buffer(int nodeid, int len, gfp_t allocation, char **ppc)
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if (e) {
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got_one:
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if (users == 0)
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kmap(e->page);
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*ppc = page_address(e->page) + offset;
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return e;
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}
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@ -1234,7 +1230,6 @@ void dlm_lowcomms_commit_buffer(void *mh)
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if (users)
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goto out;
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e->len = e->end - e->offset;
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kunmap(e->page);
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spin_unlock(&con->writequeue_lock);
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if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags)) {
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@ -1273,7 +1268,6 @@ static void send_to_sock(struct connection *con)
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offset = e->offset;
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BUG_ON(len == 0 && e->users == 0);
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spin_unlock(&con->writequeue_lock);
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kmap(e->page);
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ret = 0;
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if (len) {
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@ -1295,7 +1289,6 @@ static void send_to_sock(struct connection *con)
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if (e->len == 0 && e->users == 0) {
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list_del(&e->list);
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kunmap(e->page);
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free_entry(e);
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continue;
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}
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