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Re: [PATCH 1/4] linux-user: add more compat ioctl definitions


From: Laurent Vivier
Subject: Re: [PATCH 1/4] linux-user: add more compat ioctl definitions
Date: Fri, 21 Oct 2022 16:21:21 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1

Le 04/10/2022 à 11:32, Daniel P. Berrangé a écrit :
GLibc changes prevent us from including linux/fs.h anymore,
and we previously adjusted to this in

   commit 3cd3df2a9584e6f753bb62a0028bd67124ab5532
   Author: Daniel P. Berrangé <berrange@redhat.com>
   Date:   Tue Aug 2 12:41:34 2022 -0400

     linux-user: fix compat with glibc >= 2.36 sys/mount.h

That change required adding compat ioctl definitions on the
QEMU side for any ioctls that we would otherwise obtain
from linux/fs.h.  This commit adds more that were initially
missed, due to their usage being conditionalized in QEMU.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
  linux-user/syscall.c | 25 +++++++++++++++++++++++++
  1 file changed, 25 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2e954d8dbd..f6a15df69d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -111,6 +111,31 @@
  #define FS_IOC32_SETFLAGS              _IOW('f', 2, int)
  #define FS_IOC32_GETVERSION            _IOR('v', 1, int)
  #define FS_IOC32_SETVERSION            _IOW('v', 2, int)
+
+#define BLKGETSIZE64 _IOR(0x12,114,size_t)
+#define BLKDISCARD _IO(0x12,119)
+#define BLKIOMIN _IO(0x12,120)
+#define BLKIOOPT _IO(0x12,121)
+#define BLKALIGNOFF _IO(0x12,122)
+#define BLKPBSZGET _IO(0x12,123)
+#define BLKDISCARDZEROES _IO(0x12,124)
+#define BLKSECDISCARD _IO(0x12,125)
+#define BLKROTATIONAL _IO(0x12,126)
+#define BLKZEROOUT _IO(0x12,127)
+
+#define FIBMAP     _IO(0x00,1)
+#define FIGETBSZ   _IO(0x00,2)
+
+struct file_clone_range {
+        __s64 src_fd;
+        __u64 src_offset;
+        __u64 src_length;
+        __u64 dest_offset;
+};
+
+#define FICLONE         _IOW(0x94, 9, int)
+#define FICLONERANGE    _IOW(0x94, 13, struct file_clone_range)
+
  #else
  #include <linux/fs.h>
  #endif

Reviewed-by: Laurent Vivier <laurent@vivier.eu>



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