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| author |   Ilya Dryomov <idryomov@gmail.com> | 2018-05-03 16:10:09 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2018-05-10 10:15:00 +0200 |
| commit | 3a15b38fd2efc1d648cb33186bf71e9138c93491 (patch) | |
| tree | 0b73b8c86665270a3c56d6de453d6cab0b5ab1e1 /drivers/block/rbd.c | |
| parent | Linux 4.17-rc4 (diff) | |
| download | linux-dev-3a15b38fd2efc1d648cb33186bf71e9138c93491.tar.xz linux-dev-3a15b38fd2efc1d648cb33186bf71e9138c93491.zip | |
ceph: fix rsize/wsize capping in ceph_direct_read_write()
rsize/wsize cap should be applied before ceph_osdc_new_request() is
called. Otherwise, if the size is limited by the cap instead of the
stripe unit, ceph_osdc_new_request() would setup an extent op that is
bigger than what dio_get_pages_alloc() would pin and add to the page
vector, triggering asserts in the messenger.
Cc: stable@vger.kernel.org
Fixes: 95cca2b44e54 ("ceph: limit osd write size")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Diffstat (limited to 'drivers/block/rbd.c')
0 files changed, 0 insertions, 0 deletions