From 5f0d594c602f870e3a3872f7ea42bf846a1d26cf Mon Sep 17 00:00:00 2001 From: Tony Solomonik Date: Fri, 2 Feb 2024 14:17:23 +0200 Subject: Add do_ftruncate that truncates a struct file do_sys_ftruncate receives a file descriptor, fgets the struct file, and finally actually truncates the file. do_ftruncate allows for passing in a file directly, with the caller already holding a reference to it. Signed-off-by: Tony Solomonik Reviewed-by: Christian Brauner Link: https://lore.kernel.org/r/20240202121724.17461-2-tony.solomonik@gmail.com Signed-off-by: Jens Axboe --- fs/internal.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/internal.h') diff --git a/fs/internal.h b/fs/internal.h index b67406435fc0..8509cbd6d115 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -183,6 +183,7 @@ extern struct open_how build_open_how(int flags, umode_t mode); extern int build_open_flags(const struct open_how *how, struct open_flags *op); struct file *file_close_fd_locked(struct files_struct *files, unsigned fd); +long do_ftruncate(struct file *file, loff_t length, int small); long do_sys_ftruncate(unsigned int fd, loff_t length, int small); int chmod_common(const struct path *path, umode_t mode); int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, -- cgit v1.2.3-59-g8ed1b