summaryrefslogtreecommitdiff
path: root/fs/ceph/file.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ceph/file.c')
-rw-r--r--fs/ceph/file.c65
1 files changed, 58 insertions, 7 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index b1b9b48a4..0f5375d8e 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -708,7 +708,7 @@ static void ceph_aio_complete_req(struct ceph_osd_request *req)
}
}
- ceph_put_page_vector(osd_data->pages, num_pages, false);
+ ceph_put_page_vector(osd_data->pages, num_pages, !aio_req->write);
ceph_osdc_put_request(req);
if (rc < 0)
@@ -821,6 +821,54 @@ static void ceph_sync_write_unsafe(struct ceph_osd_request *req, bool unsafe)
}
}
+/*
+ * Wait on any unsafe replies for the given inode. First wait on the
+ * newest request, and make that the upper bound. Then, if there are
+ * more requests, keep waiting on the oldest as long as it is still older
+ * than the original request.
+ */
+void ceph_sync_write_wait(struct inode *inode)
+{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct list_head *head = &ci->i_unsafe_writes;
+ struct ceph_osd_request *req;
+ u64 last_tid;
+
+ if (!S_ISREG(inode->i_mode))
+ return;
+
+ spin_lock(&ci->i_unsafe_lock);
+ if (list_empty(head))
+ goto out;
+
+ /* set upper bound as _last_ entry in chain */
+
+ req = list_last_entry(head, struct ceph_osd_request,
+ r_unsafe_item);
+ last_tid = req->r_tid;
+
+ do {
+ ceph_osdc_get_request(req);
+ spin_unlock(&ci->i_unsafe_lock);
+
+ dout("sync_write_wait on tid %llu (until %llu)\n",
+ req->r_tid, last_tid);
+ wait_for_completion(&req->r_safe_completion);
+ ceph_osdc_put_request(req);
+
+ spin_lock(&ci->i_unsafe_lock);
+ /*
+ * from here on look at first entry in chain, since we
+ * only want to wait for anything older than last_tid
+ */
+ if (list_empty(head))
+ break;
+ req = list_first_entry(head, struct ceph_osd_request,
+ r_unsafe_item);
+ } while (req->r_tid < last_tid);
+out:
+ spin_unlock(&ci->i_unsafe_lock);
+}
static ssize_t
ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
@@ -964,7 +1012,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
len = ret;
}
- ceph_put_page_vector(pages, num_pages, false);
+ ceph_put_page_vector(pages, num_pages, !write);
ceph_osdc_put_request(req);
if (ret < 0)
@@ -985,6 +1033,8 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
}
if (aio_req) {
+ LIST_HEAD(osd_reqs);
+
if (aio_req->num_reqs == 0) {
kfree(aio_req);
return ret;
@@ -993,8 +1043,9 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
ceph_get_cap_refs(ci, write ? CEPH_CAP_FILE_WR :
CEPH_CAP_FILE_RD);
- while (!list_empty(&aio_req->osd_reqs)) {
- req = list_first_entry(&aio_req->osd_reqs,
+ list_splice(&aio_req->osd_reqs, &osd_reqs);
+ while (!list_empty(&osd_reqs)) {
+ req = list_first_entry(&osd_reqs,
struct ceph_osd_request,
r_unsafe_item);
list_del_init(&req->r_unsafe_item);
@@ -1581,9 +1632,9 @@ static int ceph_zero_objects(struct inode *inode, loff_t offset, loff_t length)
{
int ret = 0;
struct ceph_inode_info *ci = ceph_inode(inode);
- s32 stripe_unit = ceph_file_layout_su(ci->i_layout);
- s32 stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
- s32 object_size = ceph_file_layout_object_size(ci->i_layout);
+ s32 stripe_unit = ci->i_layout.stripe_unit;
+ s32 stripe_count = ci->i_layout.stripe_count;
+ s32 object_size = ci->i_layout.object_size;
u64 object_set_size = object_size * stripe_count;
u64 nearly, t;