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authorIlya Dryomov <idryomov@gmail.com>2018-02-17 09:29:58 +0100
committerIlya Dryomov <idryomov@gmail.com>2018-04-02 10:12:38 +0200
commitdccbf08005df800f5c8e948ab6132ed5536134bc (patch)
tree9df1438b466899a694f724fdbdca2c0f9aca514e /fs/ceph/addr.c
parentlibceph: eliminate overflows in ceph_calc_file_object_mapping() (diff)
downloadlinux-dccbf08005df800f5c8e948ab6132ed5536134bc.tar.xz
linux-dccbf08005df800f5c8e948ab6132ed5536134bc.zip
libceph, ceph: change ceph_calc_file_object_mapping() signature
- make it void - xlen (object extent length) out parameter should be u32 because only a single stripe unit is mapped at a time Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Alex Elder <elder@linaro.org>
Diffstat (limited to 'fs/ceph/addr.c')
-rw-r--r--fs/ceph/addr.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index b4336b42ce3b..c0fe1b6f47ac 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -945,19 +945,15 @@ get_more_pages:
if (locked_pages == 0) {
u64 objnum;
u64 objoff;
+ u32 xlen;
/* prepare async write request */
offset = (u64)page_offset(page);
- len = wsize;
-
- rc = ceph_calc_file_object_mapping(&ci->i_layout,
- offset, len,
- &objnum, &objoff,
- &len);
- if (rc < 0) {
- unlock_page(page);
- break;
- }
+ ceph_calc_file_object_mapping(&ci->i_layout,
+ offset, wsize,
+ &objnum, &objoff,
+ &xlen);
+ len = xlen;
num_ops = 1;
strip_unit_end = page->index +