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basic/missing_*.h: add asserts that the values are as expected

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It's great that we provide fallback values, but if we got one of those wrong,
it could be a long time before anyone noticed. So let's add asserts that the
our internal defines actually match the official ones, when the latter are
available.

I did not add '#include "macro.h"' to missing_{audit,capability}, because
those are processed by an awk script that would need additional include
directories and could be confused by the additional lines. We don't include
those headers standalone anyway, so this is not necessary anyway.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2024-03-20 12:26:16 +01:00
parent 7258971b13
commit 4d6437d33c
17 changed files with 370 additions and 124 deletions
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src/basic/missing_fs.h
+38 -12
View File
@@ -3,6 +3,8 @@
#include <linux/types.h>
#include "macro.h"
/* linux/fs.h */
#ifndef RENAME_NOREPLACE /* 0a7c3937a1f23f8cb5fc77ae01661e9968a51d0c (3.15) */
#define RENAME_NOREPLACE (1 << 0)
@@ -28,43 +30,63 @@ struct file_clone_range {
/* linux/fs.h or sys/mount.h */
#ifndef MS_MOVE
#define MS_MOVE 8192
# define MS_MOVE 8192
#else
assert_cc(MS_MOVE == 8192);
#endif
#ifndef MS_REC
#define MS_REC 16384
# define MS_REC 16384
#else
assert_cc(MS_REC == 16384);
#endif
#ifndef MS_PRIVATE
#define MS_PRIVATE (1<<18)
# define MS_PRIVATE (1<<18)
#else
assert_cc(MS_PRIVATE == (1<<18));
#endif
#ifndef MS_SLAVE
#define MS_SLAVE (1<<19)
# define MS_SLAVE (1<<19)
#else
assert_cc(MS_SLAVE == (1<<19));
#endif
#ifndef MS_SHARED
#define MS_SHARED (1<<20)
# define MS_SHARED (1<<20)
#else
assert_cc(MS_SHARED == (1<<20));
#endif
#ifndef MS_RELATIME
#define MS_RELATIME (1<<21)
# define MS_RELATIME (1<<21)
#else
assert_cc(MS_RELATIME == (1<<21));
#endif
#ifndef MS_KERNMOUNT
#define MS_KERNMOUNT (1<<22)
# define MS_KERNMOUNT (1<<22)
#else
assert_cc(MS_KERNMOUNT == (1<<22));
#endif
#ifndef MS_I_VERSION
#define MS_I_VERSION (1<<23)
# define MS_I_VERSION (1<<23)
#else
assert_cc(MS_I_VERSION == (1<<23));
#endif
#ifndef MS_STRICTATIME
#define MS_STRICTATIME (1<<24)
# define MS_STRICTATIME (1<<24)
#else
assert_cc(MS_STRICTATIME == (1 << 24));
#endif
#ifndef MS_LAZYTIME
#define MS_LAZYTIME (1<<25)
# define MS_LAZYTIME (1<<25)
#else
assert_cc(MS_LAZYTIME == (1<<25));
#endif
/* Not exposed yet. Defined at fs/ext4/ext4.h */
@@ -78,10 +100,14 @@ struct file_clone_range {
#endif
#ifndef FS_PROJINHERIT_FL
#define FS_PROJINHERIT_FL 0x20000000
# define FS_PROJINHERIT_FL 0x20000000
#else
assert_cc(FS_PROJINHERIT_FL == 0x20000000);
#endif
/* linux/fscrypt.h */
#ifndef FS_KEY_DESCRIPTOR_SIZE
#define FS_KEY_DESCRIPTOR_SIZE 8
# define FS_KEY_DESCRIPTOR_SIZE 8
#else
assert_cc(FS_KEY_DESCRIPTOR_SIZE == 8);
#endif