Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...

[linux-2.6] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index a05f600..269cdba 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -463,6 +463,7 @@ struct ata_queued_cmd {
        unsigned int            sect_size;
 
        unsigned int            nbytes;
+       unsigned int            extrabytes;
        unsigned int            curbytes;
 
        struct scatterlist      *cursg;
@@ -1336,6 +1337,11 @@ static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap,
        return NULL;
 }
 
+static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc)
+{
+       return qc->nbytes - min(qc->extrabytes, qc->nbytes);
+}
+
 static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
 {
        memset(tf, 0, sizeof(*tf));
@@ -1354,7 +1360,7 @@ static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
        qc->flags = 0;
        qc->cursg = NULL;
        qc->cursg_ofs = 0;
-       qc->nbytes = qc->curbytes = 0;
+       qc->nbytes = qc->extrabytes = qc->curbytes = 0;
        qc->n_elem = 0;
        qc->err_mask = 0;
        qc->sect_size = ATA_SECT_SIZE;