1 files changed, 69 insertions, 0 deletions
diff --git a/emulators/qemu8/files/patch-block_export_fuse.c b/emulators/qemu8/files/patch-block_export_fuse.c
new file mode 100644
index 000000000000..03b9cc8b5994
--- /dev/null
+++ b/emulators/qemu8/files/patch-block_export_fuse.c
@@ -0,0 +1,69 @@
+--- block/export/fuse.c.orig	2023-12-19 21:24:34 UTC
++++ block/export/fuse.c
+@@ -690,12 +690,6 @@ static void fuse_fallocate(fuse_req_t req, fuse_ino_t 
+         return;
+     }
+ 
+-#ifdef CONFIG_FALLOCATE_PUNCH_HOLE
+-    if (mode & FALLOC_FL_KEEP_SIZE) {
+-        length = MIN(length, blk_len - offset);
+-    }
+-#endif /* CONFIG_FALLOCATE_PUNCH_HOLE */
+-
+     if (!mode) {
+         /* We can only fallocate at the EOF with a truncate */
+         if (offset < blk_len) {
+@@ -715,53 +709,6 @@ static void fuse_fallocate(fuse_req_t req, fuse_ino_t 
+         ret = fuse_do_truncate(exp, offset + length, true,
+                                PREALLOC_MODE_FALLOC);
+     }
+-#ifdef CONFIG_FALLOCATE_PUNCH_HOLE
+-    else if (mode & FALLOC_FL_PUNCH_HOLE) {
+-        if (!(mode & FALLOC_FL_KEEP_SIZE)) {
+-            fuse_reply_err(req, EINVAL);
+-            return;
+-        }
+-
+-        do {
+-            int size = MIN(length, BDRV_REQUEST_MAX_BYTES);
+-
+-            ret = blk_pwrite_zeroes(exp->common.blk, offset, size,
+-                                    BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK);
+-            if (ret == -ENOTSUP) {
+-                /*
+-                 * fallocate() specifies to return EOPNOTSUPP for unsupported
+-                 * operations
+-                 */
+-                ret = -EOPNOTSUPP;
+-            }
+-
+-            offset += size;
+-            length -= size;
+-        } while (ret == 0 && length > 0);
+-    }
+-#endif /* CONFIG_FALLOCATE_PUNCH_HOLE */
+-#ifdef CONFIG_FALLOCATE_ZERO_RANGE
+-    else if (mode & FALLOC_FL_ZERO_RANGE) {
+-        if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + length > blk_len) {
+-            /* No need for zeroes, we are going to write them ourselves */
+-            ret = fuse_do_truncate(exp, offset + length, false,
+-                                   PREALLOC_MODE_OFF);
+-            if (ret < 0) {
+-                fuse_reply_err(req, -ret);
+-                return;
+-            }
+-        }
+-
+-        do {
+-            int size = MIN(length, BDRV_REQUEST_MAX_BYTES);
+-
+-            ret = blk_pwrite_zeroes(exp->common.blk,
+-                                    offset, size, 0);
+-            offset += size;
+-            length -= size;
+-        } while (ret == 0 && length > 0);
+-    }
+-#endif /* CONFIG_FALLOCATE_ZERO_RANGE */
+     else {
+         ret = -EOPNOTSUPP;
+     }