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authorArnd Bergmann <arnd@arndb.de>2019-11-27 23:25:36 +0300
committerArnd Bergmann <arnd@arndb.de>2020-01-03 11:42:52 +0300
commit77b9040195dea3fcddf19e136c9e99a501351778 (patch)
tree27fa410983007e002eb45480270c56f0339690c3 /drivers/block
parent2af563d071d63ac820354e4b275478a481845071 (diff)
downloadlinux-77b9040195dea3fcddf19e136c9e99a501351778.tar.xz
compat_ioctl: simplify the implementation
Now that both native and compat ioctl syscalls are in the same file, a couple of simplifications can be made, bringing the implementation closer together: - do_vfs_ioctl(), ioctl_preallocate(), and compat_ioctl_preallocate() can become static, allowing the compiler to optimize better - slightly update the coding style for consistency between the functions. - rather than listing each command in two switch statements for the compat case, just call a single function that has all the common commands. As a side-effect, FS_IOC_RESVSP/FS_IOC_RESVSP64 are now available to x86 compat tasks, along with FS_IOC_RESVSP_32/FS_IOC_RESVSP64_32. This is harmless for i386 emulation, and can be considered a bugfix for x32 emulation, which never supported these in the past. Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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