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authorArnd Bergmann <arnd@arndb.de>2019-11-27 21:25:36 +0100
committerArnd Bergmann <arnd@arndb.de>2020-01-03 09:42:52 +0100
commit77b9040195dea3fcddf19e136c9e99a501351778 (patch)
tree27fa410983007e002eb45480270c56f0339690c3 /fs/internal.h
parent2af563d071d63ac820354e4b275478a481845071 (diff)
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>
Diffstat (limited to 'fs/internal.h')
-rw-r--r--fs/internal.h6
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/internal.h b/fs/internal.h
index 4a7da1df573d..d46247850ad7 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -180,11 +180,5 @@ extern void mnt_pin_kill(struct mount *m);
*/
extern const struct dentry_operations ns_dentry_operations;
-/*
- * fs/ioctl.c
- */
-extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd,
- unsigned long arg);
-
/* direct-io.c: */
int sb_init_dio_done_wq(struct super_block *sb);