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authorIlya Dryomov <idryomov@gmail.com>2016-02-16 15:00:24 +0100
committerIlya Dryomov <idryomov@gmail.com>2016-03-25 18:51:52 +0100
commit34b759b4a22b0acb82423389a24699357798cf3c (patch)
tree02c1f45f274762ab91fd180e928aedb93612c5a5 /fs/ceph/addr.c
parentce4355932a9412e0519e70fb1d03d88e39cd621a (diff)
ceph: kill ceph_empty_snapc
ceph_empty_snapc->num_snaps == 0 at all times. Passing such a snapc to ceph_osdc_alloc_request() (possibly through ceph_osdc_new_request()) is equivalent to passing NULL, as ceph_osdc_alloc_request() uses it only for sizing the request message. Further, in all four cases the subsequent ceph_osdc_build_request() is passed NULL for snapc, meaning that 0 is encoded for seq and num_snaps and making ceph_empty_snapc entirely useless. The two cases where it actually mattered were removed in commits 860560904962 ("ceph: avoid sending unnessesary FLUSHSNAP message") and 23078637e054 ("ceph: fix queuing inode to mdsdir's snaprealm"). Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/addr.c')
-rw-r--r--fs/ceph/addr.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index c9f305089981..888674c311c5 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1609,7 +1609,7 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
ceph_vino(inode), 0, &len, 0, 1,
CEPH_OSD_OP_CREATE,
CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE,
- ceph_empty_snapc, 0, 0, false);
+ NULL, 0, 0, false);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto out;
@@ -1627,9 +1627,8 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
ceph_vino(inode), 0, &len, 1, 3,
CEPH_OSD_OP_WRITE,
CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE,
- ceph_empty_snapc,
- ci->i_truncate_seq, ci->i_truncate_size,
- false);
+ NULL, ci->i_truncate_seq,
+ ci->i_truncate_size, false);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto out;
@@ -1750,8 +1749,7 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
goto out;
}
- rd_req = ceph_osdc_alloc_request(&fsc->client->osdc,
- ceph_empty_snapc,
+ rd_req = ceph_osdc_alloc_request(&fsc->client->osdc, NULL,
1, false, GFP_NOFS);
if (!rd_req) {
err = -ENOMEM;
@@ -1765,8 +1763,7 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
"%llx.00000000", ci->i_vino.ino);
rd_req->r_base_oid.name_len = strlen(rd_req->r_base_oid.name);
- wr_req = ceph_osdc_alloc_request(&fsc->client->osdc,
- ceph_empty_snapc,
+ wr_req = ceph_osdc_alloc_request(&fsc->client->osdc, NULL,
1, false, GFP_NOFS);
if (!wr_req) {
err = -ENOMEM;