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add support for VKI_BLKDISCARDZEROES

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this is used in some newer QEMU versions and other tools


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14235
This commit is contained in:
Christian Borntraeger
2014-08-05 15:14:52 +00:00
parent 67b975eb93
commit 00a31dd3d1
3 changed files with 9 additions and 1 deletions
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3
include/vki/vki-linux.h
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@@ -1720,7 +1720,7 @@ struct vki_ppdev_frob_struct {
#define VKI_PPSETFLAGS _VKI_IOW(VKI_PP_IOCTL, 0x9b, int)
//----------------------------------------------------------------------
// From linux-2.6.8.1/include/linux/fs.h
// From linux-3.16/include/uapi/linux/fs.h
//----------------------------------------------------------------------
#define VKI_BLKROSET _VKI_IO(0x12,93) /* set device read-only (0 = read-write) */
@@ -1736,6 +1736,7 @@ struct vki_ppdev_frob_struct {
#define VKI_BLKBSZSET _VKI_IOW(0x12,113,vki_size_t)
#define VKI_BLKGETSIZE64 _VKI_IOR(0x12,114,vki_size_t) /* return device size in bytes (u64 *arg) */
#define VKI_BLKPBSZGET _VKI_IO(0x12,123)
#define VKI_BLKDISCARDZEROES _VKI_IO(0x12,124)
#define VKI_FIBMAP _VKI_IO(0x00,1) /* bmap access */
#define VKI_FIGETBSZ _VKI_IO(0x00,2) /* get the block size used for bmap */