tree: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git devel
head: c75c3b0bfffdb21daecb7dadbd30eb2e353fe66d
commit: 89b576af8bc6fc7421ac09e246f6c3d9237fc9b8 [30/48] nfs: add support for
multiple nfs reqs per page
fs/nfs/pagelist.c:1037 __nfs_pageio_add_request() error: 'subreq' dereferencing
possible ERR_PTR()
git remote add nfs git://git.linux-nfs.org/projects/trondmy/linux-nfs.git
git remote update nfs
git checkout 89b576af8bc6fc7421ac09e246f6c3d9237fc9b8
vim +/subreq +1037 fs/nfs/pagelist.c
89b576af Weston Andros Adamson 2014-05-15 1021 }
89b576af Weston Andros Adamson 2014-05-15 1022
89b576af Weston Andros Adamson 2014-05-15 1023 /* check for
buggy pg_test call(s) */
89b576af Weston Andros Adamson 2014-05-15 1024
WARN_ON_ONCE(subreq->wb_bytes + subreq->wb_pgbase > PAGE_SIZE);
89b576af Weston Andros Adamson 2014-05-15 1025
WARN_ON_ONCE(subreq->wb_bytes > bytes_left);
89b576af Weston Andros Adamson 2014-05-15 1026
WARN_ON_ONCE(subreq->wb_bytes == 0);
89b576af Weston Andros Adamson 2014-05-15 1027
89b576af Weston Andros Adamson 2014-05-15 1028 bytes_left -=
subreq->wb_bytes;
89b576af Weston Andros Adamson 2014-05-15 1029 offset +=
subreq->wb_bytes;
89b576af Weston Andros Adamson 2014-05-15 1030 pgbase +=
subreq->wb_bytes;
89b576af Weston Andros Adamson 2014-05-15 1031
89b576af Weston Andros Adamson 2014-05-15 1032 if (bytes_left)
{
89b576af Weston Andros Adamson 2014-05-15 1033 subreq
= nfs_create_request(req->wb_context,
89b576af Weston Andros Adamson 2014-05-15 1034
req->wb_page,
89b576af Weston Andros Adamson 2014-05-15 1035
subreq, pgbase, bytes_left);
89b576af Weston Andros Adamson 2014-05-15 1036
nfs_lock_request(subreq);
89b576af Weston Andros Adamson 2014-05-15 @1037
subreq->wb_offset = offset;
89b576af Weston Andros Adamson 2014-05-15 1038
subreq->wb_index = req->wb_index;
89b576af Weston Andros Adamson 2014-05-15 1039 }
89b576af Weston Andros Adamson 2014-05-15 1040 } while (bytes_left >
0);
89b576af Weston Andros Adamson 2014-05-15 1041
89b576af Weston Andros Adamson 2014-05-15 1042
nfs_page_group_unlock(req);
bcb71bba Trond Myklebust 2007-04-02 1043 return 1;
bcb71bba Trond Myklebust 2007-04-02 1044 }
bcb71bba Trond Myklebust 2007-04-02 1045
---
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