diff options
| author | NeilBrown <neilb@suse.com> | 2018-11-30 10:04:08 +1100 |
|---|---|---|
| committer | Jeff Layton <jlayton@kernel.org> | 2018-11-30 11:26:12 -0500 |
| commit | 7b587e1a5a6cf6035ab1fbd6a1d00ce604eaf488 (patch) | |
| tree | 617a4b092a7bb308366c5be64ae1774138a9740e | |
| parent | ad6bbd8b18dad182a7e91d7826e27e9a64d935f9 (diff) | |
| download | linux-7b587e1a5a6cf6035ab1fbd6a1d00ce604eaf488.tar.gz linux-7b587e1a5a6cf6035ab1fbd6a1d00ce604eaf488.tar.bz2 linux-7b587e1a5a6cf6035ab1fbd6a1d00ce604eaf488.zip | |
NFS: use locks_copy_lock() to copy locks.
Using memcpy() to copy lock requests leaves the various
list_head in an inconsistent state.
As we will soon attach a list of conflicting request to
another pending request, we need these lists to be consistent.
So change NFS to use locks_init_lock/locks_copy_lock instead
of memcpy.
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
| -rw-r--r-- | fs/nfs/nfs4proc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 867457d6dfbe..0ba2b0fb8ff3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -6311,7 +6311,8 @@ static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl, /* Ensure we don't close file until we're done freeing locks! */ p->ctx = get_nfs_open_context(ctx); p->l_ctx = nfs_get_lock_context(ctx); - memcpy(&p->fl, fl, sizeof(p->fl)); + locks_init_lock(&p->fl); + locks_copy_lock(&p->fl, fl); p->server = NFS_SERVER(inode); return p; } @@ -6533,7 +6534,8 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl, p->server = server; refcount_inc(&lsp->ls_count); p->ctx = get_nfs_open_context(ctx); - memcpy(&p->fl, fl, sizeof(p->fl)); + locks_init_lock(&p->fl); + locks_copy_lock(&p->fl, fl); return p; out_free_seqid: nfs_free_seqid(p->arg.open_seqid); |