The commit is pushed to "branch-rh7-3.10.0-862.14.4.vz7.72.x-ovz" and will
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-862.14.4.vz7.72.15
------>
commit 0f4af7f650f75ebb341ab4948704ef2b3ff5f428
Author: Pavel Butsykin <[email protected]>
Date: Wed Oct 31 16:02:48 2018 +0300
fs/fuse kio_pcs: make map_truncate_tail() working as the original from
libpcs_client
The offset from the argument usually belong to chunk that will still be
used,
we can't drop map describing this chunk. But we can drop all subsequent
maps.
In the original, map_truncate_tail() works exactly this way, but when code
was
transferred to the kernel it suddenly changed the logic. Let's fix it.
Signed-off-by: Pavel Butsykin <[email protected]>
Reviewed-by: Kirill Tkhai <[email protected]>
=====================
Patchset description:
FUSE KIO: Mapping truncate fixes
https://jira.sw.ru/browse/PSBM-89539
---
fs/fuse/kio/pcs/pcs_map.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/fuse/kio/pcs/pcs_map.c b/fs/fuse/kio/pcs/pcs_map.c
index 25c0281d5278..2990e8e2a3e9 100644
--- a/fs/fuse/kio/pcs/pcs_map.c
+++ b/fs/fuse/kio/pcs/pcs_map.c
@@ -237,8 +237,7 @@ void pcs_mapping_dump(struct pcs_mapping * mapping)
void map_truncate_tail(struct pcs_mapping * mapping, u64 offset)
{
-
- unsigned long pos = offset >> mapping->chunk_size_bits;
+ unsigned long pos = DIV_ROUND_UP(offset, 1 << mapping->chunk_size_bits);
struct pcs_map_entry *maps[MAP_BATCH];
int nr_maps;
LIST_HEAD(dispose);
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