X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=engines%2Fmmap.c;h=69add78a2f95b9d72dea9f093ef174667f09958c;hb=e13c3b50a1aa156223b5b9d20ed3d38dd4292479;hp=29ac5db24f585e46938fe83e8eb5fabbbee54222;hpb=03a32636475b2efeb9ac3694c36fbe45b187d32a;p=fio.git

diff --git a/engines/mmap.c b/engines/mmap.c
index 29ac5db2..69add78a 100644
--- a/engines/mmap.c
+++ b/engines/mmap.c
@@ -31,7 +31,7 @@ struct fio_mmap_data {
 static int fio_mmap_file(struct thread_data *td, struct fio_file *f,
 			 size_t length, off_t off)
 {
-	struct fio_mmap_data *fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
+	struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
 	int flags = 0;
 
 	if (td_rw(td))
@@ -62,6 +62,16 @@ static int fio_mmap_file(struct thread_data *td, struct fio_file *f,
 			goto err;
 		}
 	}
+	if (posix_madvise(fmd->mmap_ptr, length, POSIX_MADV_DONTNEED) < 0) {
+		td_verror(td, errno, "madvise");
+		goto err;
+	}
+
+#ifdef FIO_MADV_FREE
+	if (f->filetype == FIO_TYPE_BD)
+		(void) posix_madvise(fmd->mmap_ptr, fmd->mmap_sz, FIO_MADV_FREE);
+#endif
+
 
 err:
 	if (td->error && fmd->mmap_ptr)
@@ -76,7 +86,7 @@ err:
 static int fio_mmapio_prep_limited(struct thread_data *td, struct io_u *io_u)
 {
 	struct fio_file *f = io_u->file;
-	struct fio_mmap_data *fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
+	struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
 
 	if (io_u->buflen > mmap_map_size) {
 		log_err("fio: bs too big for mmap engine\n");
@@ -98,11 +108,16 @@ static int fio_mmapio_prep_limited(struct thread_data *td, struct io_u *io_u)
 static int fio_mmapio_prep_full(struct thread_data *td, struct io_u *io_u)
 {
 	struct fio_file *f = io_u->file;
-	struct fio_mmap_data *fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
+	struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
 	int ret;
 
 	if (fio_file_partial_mmap(f))
 		return EINVAL;
+	if (io_u->offset != (size_t) io_u->offset ||
+	    f->io_size != (size_t) f->io_size) {
+		fio_file_set_partial_mmap(f);
+		return EINVAL;
+	}
 
 	fmd->mmap_sz = f->io_size;
 	fmd->mmap_off = 0;
@@ -117,7 +132,7 @@ static int fio_mmapio_prep_full(struct thread_data *td, struct io_u *io_u)
 static int fio_mmapio_prep(struct thread_data *td, struct io_u *io_u)
 {
 	struct fio_file *f = io_u->file;
-	struct fio_mmap_data *fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
+	struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
 	int ret;
 
 	/*
@@ -152,7 +167,7 @@ done:
 static int fio_mmapio_queue(struct thread_data *td, struct io_u *io_u)
 {
 	struct fio_file *f = io_u->file;
-	struct fio_mmap_data *fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
+	struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
 
 	fio_ro_check(td, io_u);
 
@@ -232,35 +247,21 @@ static int fio_mmapio_open_file(struct thread_data *td, struct fio_file *f)
 		return 1;
 	}
 
-	f->engine_data = (uintptr_t) fmd;
+	FILE_SET_ENG_DATA(f, fmd);
 	return 0;
 }
 
 static int fio_mmapio_close_file(struct thread_data *td, struct fio_file *f)
 {
-	struct fio_mmap_data *fmd;
+	struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
 
-	fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
-	f->engine_data = 0;
+	FILE_SET_ENG_DATA(f, NULL);
 	free(fmd);
+	fio_file_clear_partial_mmap(f);
 
 	return generic_close_file(td, f);
 }
 
-static int fio_mmapio_invalidate(struct thread_data *td, struct fio_file *f)
-{
-	struct fio_mmap_data *fmd = (struct fio_mmap_data *) (uintptr_t) f->engine_data;
-	int ret;
-
-	ret = posix_madvise(fmd->mmap_ptr, fmd->mmap_sz, POSIX_MADV_DONTNEED);
-#ifdef FIO_MADV_FREE
-	if (f->filetype == FIO_TYPE_BD)
-		(void) posix_madvise(fmd->mmap_ptr, fmd->mmap_sz, FIO_MADV_FREE);
-#endif
-
-	return ret;
-}
-
 static struct ioengine_ops ioengine = {
 	.name		= "mmap",
 	.version	= FIO_IOOPS_VERSION,
@@ -269,7 +270,6 @@ static struct ioengine_ops ioengine = {
 	.queue		= fio_mmapio_queue,
 	.open_file	= fio_mmapio_open_file,
 	.close_file	= fio_mmapio_close_file,
-	.invalidate	= fio_mmapio_invalidate,
 	.get_file_size	= generic_get_file_size,
 	.flags		= FIO_SYNCIO | FIO_NOEXTEND,
 };