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uapi: always define F_GETLK64/F_SETLK64/F_SETLKW64 in fcntl.h

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The F_GETLK64/F_SETLK64/F_SETLKW64 fcntl opcodes are only implemented
for the 32-bit syscall APIs, but are also needed for compat handling
on 64-bit kernels.

Consolidate them in unistd.h instead of definining the internal compat
definitions in compat.h, which is rather error prone (e.g. parisc
gets the values wrong currently).

Note that before this change they were never visible to userspace due
to the fact that CONFIG_64BIT is only set for kernel builds.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220405071314.3225832-3-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Christoph Hellwig
2022-04-05 15:12:56 +08:00
committed by Palmer Dabbelt
parent 9f79b8b723
commit 306f7cc1e9
9 changed files with 4 additions and 30 deletions
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2
tools/include/uapi/asm-generic/fcntl.h
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@@ -115,13 +115,11 @@
#define F_GETSIG 11 /* for sockets. */
#endif
#ifndef CONFIG_64BIT
#ifndef F_GETLK64
#define F_GETLK64 12 /* using 'struct flock64' */
#define F_SETLK64 13
#define F_SETLKW64 14
#endif
#endif
#ifndef F_SETOWN_EX
#define F_SETOWN_EX 15