diff options
Diffstat (limited to 'fs/nfs/direct.c')
-rw-r--r-- | fs/nfs/direct.c | 57 |
1 files changed, 26 insertions, 31 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 079228817603..10ae377e68ff 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -122,9 +122,10 @@ nfs_free_user_pages(struct page **pages, int npages, int do_dirty) { int i; for (i = 0; i < npages; i++) { - if (do_dirty) - set_page_dirty_lock(pages[i]); - page_cache_release(pages[i]); + struct page *page = pages[i]; + if (do_dirty && !PageCompound(page)) + set_page_dirty_lock(page); + page_cache_release(page); } kfree(pages); } @@ -154,6 +155,7 @@ static struct nfs_direct_req *nfs_direct_read_alloc(size_t nbytes, unsigned int struct list_head *list; struct nfs_direct_req *dreq; unsigned int reads = 0; + unsigned int rpages = (rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; dreq = kmem_cache_alloc(nfs_direct_cachep, SLAB_KERNEL); if (!dreq) @@ -167,7 +169,7 @@ static struct nfs_direct_req *nfs_direct_read_alloc(size_t nbytes, unsigned int list = &dreq->list; for(;;) { - struct nfs_read_data *data = nfs_readdata_alloc(); + struct nfs_read_data *data = nfs_readdata_alloc(rpages); if (unlikely(!data)) { while (!list_empty(list)) { @@ -268,8 +270,6 @@ static void nfs_direct_read_schedule(struct nfs_direct_req *dreq, NFS_PROTO(inode)->read_setup(data); data->task.tk_cookie = (unsigned long) inode; - data->task.tk_calldata = data; - data->task.tk_release = nfs_readdata_release; data->complete = nfs_direct_read_result; lock_kernel(); @@ -433,7 +433,7 @@ static ssize_t nfs_direct_write_seg(struct inode *inode, struct nfs_writeverf first_verf; struct nfs_write_data *wdata; - wdata = nfs_writedata_alloc(); + wdata = nfs_writedata_alloc(NFS_SERVER(inode)->wpages); if (!wdata) return -ENOMEM; @@ -662,10 +662,10 @@ nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t .iov_len = count, }; - dprintk("nfs: direct read(%s/%s, %lu@%lu)\n", + dprintk("nfs: direct read(%s/%s, %lu@%Ld)\n", file->f_dentry->d_parent->d_name.name, file->f_dentry->d_name.name, - (unsigned long) count, (unsigned long) pos); + (unsigned long) count, (long long) pos); if (!is_sync_kiocb(iocb)) goto out; @@ -718,9 +718,7 @@ out: ssize_t nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t pos) { - ssize_t retval = -EINVAL; - loff_t *ppos = &iocb->ki_pos; - unsigned long limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; + ssize_t retval; struct file *file = iocb->ki_filp; struct nfs_open_context *ctx = (struct nfs_open_context *) file->private_data; @@ -728,35 +726,32 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count, struct inode *inode = mapping->host; struct iovec iov = { .iov_base = (char __user *)buf, - .iov_len = count, }; - dfprintk(VFS, "nfs: direct write(%s/%s(%ld), %lu@%lu)\n", + dfprintk(VFS, "nfs: direct write(%s/%s, %lu@%Ld)\n", file->f_dentry->d_parent->d_name.name, - file->f_dentry->d_name.name, inode->i_ino, - (unsigned long) count, (unsigned long) pos); + file->f_dentry->d_name.name, + (unsigned long) count, (long long) pos); + retval = -EINVAL; if (!is_sync_kiocb(iocb)) goto out; - if (count < 0) - goto out; - if (pos < 0) + + retval = generic_write_checks(file, &pos, &count, 0); + if (retval) goto out; - retval = -EFAULT; - if (!access_ok(VERIFY_READ, iov.iov_base, iov.iov_len)) + + retval = -EINVAL; + if ((ssize_t) count < 0) goto out; - retval = -EFBIG; - if (limit != RLIM_INFINITY) { - if (pos >= limit) { - send_sig(SIGXFSZ, current, 0); - goto out; - } - if (count > limit - (unsigned long) pos) - count = limit - (unsigned long) pos; - } retval = 0; if (!count) goto out; + iov.iov_len = count, + + retval = -EFAULT; + if (!access_ok(VERIFY_READ, iov.iov_base, iov.iov_len)) + goto out; retval = nfs_sync_mapping(mapping); if (retval) @@ -766,7 +761,7 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count, if (mapping->nrpages) invalidate_inode_pages2(mapping); if (retval > 0) - *ppos = pos + retval; + iocb->ki_pos = pos + retval; out: return retval; |