[PATCH v2 4/6] system/ramblock: Use ram_addr_t in ram_block_discard_guest_memfd_range

[Philippe Mathieu-Daudé]

Rename @start as @offset, since it express an offset within a RAMBlock.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 include/system/ramblock.h | 3 ++-
 system/physmem.c          | 8 ++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/system/ramblock.h b/include/system/ramblock.h
index 530c5a2e4c2..839d8a070c1 100644
--- a/include/system/ramblock.h
+++ b/include/system/ramblock.h
@@ -104,7 +104,8 @@ struct RamBlockAttributes {
 };
 
 int ram_block_discard_range(RAMBlock *rb, uint64_t start, size_t length);
-int ram_block_discard_guest_memfd_range(RAMBlock *rb, uint64_t start,
+/* @offset: the offset within the RAMBlock */
+int ram_block_discard_guest_memfd_range(RAMBlock *rb, uint64_t offset,
                                         size_t length);
 
 RamBlockAttributes *ram_block_attributes_create(RAMBlock *ram_block);
diff --git a/system/physmem.c b/system/physmem.c
index 3766fae0aba..2bfddb3db52 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -3920,7 +3920,7 @@ err:
     return ret;
 }
 
-int ram_block_discard_guest_memfd_range(RAMBlock *rb, uint64_t start,
+int ram_block_discard_guest_memfd_range(RAMBlock *rb, uint64_t offset,
                                         size_t length)
 {
     int ret = -1;
@@ -3928,17 +3928,17 @@ int ram_block_discard_guest_memfd_range(RAMBlock *rb, 
uint64_t start,
 #ifdef CONFIG_FALLOCATE_PUNCH_HOLE
     /* ignore fd_offset with guest_memfd */
     ret = fallocate(rb->guest_memfd, FALLOC_FL_PUNCH_HOLE | 
FALLOC_FL_KEEP_SIZE,
-                    start, length);
+                    offset, length);
 
     if (ret) {
         ret = -errno;
         error_report("%s: Failed to fallocate %s:%" PRIx64 " +%zx (%d)",
-                     __func__, rb->idstr, start, length, ret);
+                     __func__, rb->idstr, offset, length, ret);
     }
 #else
     ret = -ENOSYS;
     error_report("%s: fallocate not available %s:%" PRIx64 " +%zx (%d)",
-                 __func__, rb->idstr, start, length, ret);
+                 __func__, rb->idstr, offset, length, ret);
 #endif
 
     return ret;
-- 
2.51.0