diff options
| -rw-r--r-- | fs/nfs/direct.c | 27 | ||||
| -rw-r--r-- | fs/orangefs/orangefs-bufmap.c | 4 | ||||
| -rw-r--r-- | include/uapi/linux/stat.h | 8 | ||||
| -rw-r--r-- | net/9p/client.c | 4 |
4 files changed, 25 insertions, 18 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index aab32fc3d6a8..c1b5fed7c863 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -537,7 +537,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq, if (put_dreq(dreq)) nfs_direct_complete(dreq); - return 0; + return requested_bytes; } /** @@ -566,7 +566,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter) struct inode *inode = mapping->host; struct nfs_direct_req *dreq; struct nfs_lock_context *l_ctx; - ssize_t result = -EINVAL; + ssize_t result = -EINVAL, requested; size_t count = iov_iter_count(iter); nfs_add_stats(mapping->host, NFSIOS_DIRECTREADBYTES, count); @@ -600,14 +600,19 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter) nfs_start_io_direct(inode); NFS_I(inode)->read_io += count; - result = nfs_direct_read_schedule_iovec(dreq, iter, iocb->ki_pos); + requested = nfs_direct_read_schedule_iovec(dreq, iter, iocb->ki_pos); nfs_end_io_direct(inode); - if (!result) { + if (requested > 0) { result = nfs_direct_wait(dreq); - if (result > 0) + if (result > 0) { + requested -= result; iocb->ki_pos += result; + } + iov_iter_revert(iter, requested); + } else { + result = requested; } out_release: @@ -954,7 +959,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq, if (put_dreq(dreq)) nfs_direct_write_complete(dreq); - return 0; + return requested_bytes; } /** @@ -979,7 +984,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq, */ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) { - ssize_t result = -EINVAL; + ssize_t result = -EINVAL, requested; size_t count; struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; @@ -1022,7 +1027,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) nfs_start_io_direct(inode); - result = nfs_direct_write_schedule_iovec(dreq, iter, pos); + requested = nfs_direct_write_schedule_iovec(dreq, iter, pos); if (mapping->nrpages) { invalidate_inode_pages2_range(mapping, @@ -1031,13 +1036,17 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) nfs_end_io_direct(inode); - if (!result) { + if (requested > 0) { result = nfs_direct_wait(dreq); if (result > 0) { + requested -= result; iocb->ki_pos = pos + result; /* XXX: should check the generic_write_sync retval */ generic_write_sync(iocb, result); } + iov_iter_revert(iter, requested); + } else { + result = requested; } out_release: nfs_direct_req_release(dreq); diff --git a/fs/orangefs/orangefs-bufmap.c b/fs/orangefs/orangefs-bufmap.c index 6333cbbdfef7..83b506020718 100644 --- a/fs/orangefs/orangefs-bufmap.c +++ b/fs/orangefs/orangefs-bufmap.c @@ -521,13 +521,11 @@ int orangefs_bufmap_copy_from_iovec(struct iov_iter *iter, size_t n = size; if (n > PAGE_SIZE) n = PAGE_SIZE; - n = copy_page_from_iter(page, 0, n, iter); - if (!n) + if (copy_page_from_iter(page, 0, n, iter) != n) return -EFAULT; size -= n; } return 0; - } /* diff --git a/include/uapi/linux/stat.h b/include/uapi/linux/stat.h index d538897b8e08..17b10304c393 100644 --- a/include/uapi/linux/stat.h +++ b/include/uapi/linux/stat.h @@ -48,17 +48,13 @@ * tv_sec holds the number of seconds before (negative) or after (positive) * 00:00:00 1st January 1970 UTC. * - * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is - * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time. - * - * Note that if both tv_sec and tv_nsec are non-zero, then the two values must - * either be both positive or both negative. + * tv_nsec holds a number of nanoseconds (0..999,999,999) after the tv_sec time. * * __reserved is held in case we need a yet finer resolution. */ struct statx_timestamp { __s64 tv_sec; - __s32 tv_nsec; + __u32 tv_nsec; __s32 __reserved; }; diff --git a/net/9p/client.c b/net/9p/client.c index 3ce672af1596..8e5c6a8d0a37 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -2101,6 +2101,10 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset) trace_9p_protocol_dump(clnt, req->rc); goto free_and_error; } + if (rsize < count) { + pr_err("bogus RREADDIR count (%d > %d)\n", count, rsize); + count = rsize; + } p9_debug(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count); |