From 20d9eb3b870630f213adfd82d255acd36341b036 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 22 Jul 2024 21:51:33 -0400 Subject: [PATCH] convert do_preadv()/do_pwritev() fdput() can be transposed with add_{r,w}char() and inc_sysc{r,w}(); it's the same story as with do_readv()/do_writev(), only with fdput() instead of fdput_pos(). Reviewed-by: Christian Brauner Signed-off-by: Al Viro --- fs/read_write.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index deb87457aa767..f6e9232eacd8b 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1113,18 +1113,16 @@ static inline loff_t pos_from_hilo(unsigned long high, unsigned long low) static ssize_t do_preadv(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, loff_t pos, rwf_t flags) { - struct fd f; ssize_t ret = -EBADF; if (pos < 0) return -EINVAL; - f = fdget(fd); - if (fd_file(f)) { + CLASS(fd, f)(fd); + if (!fd_empty(f)) { ret = -ESPIPE; if (fd_file(f)->f_mode & FMODE_PREAD) ret = vfs_readv(fd_file(f), vec, vlen, &pos, flags); - fdput(f); } if (ret > 0) @@ -1136,18 +1134,16 @@ static ssize_t do_preadv(unsigned long fd, const struct iovec __user *vec, static ssize_t do_pwritev(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, loff_t pos, rwf_t flags) { - struct fd f; ssize_t ret = -EBADF; if (pos < 0) return -EINVAL; - f = fdget(fd); - if (fd_file(f)) { + CLASS(fd, f)(fd); + if (!fd_empty(f)) { ret = -ESPIPE; if (fd_file(f)->f_mode & FMODE_PWRITE) ret = vfs_writev(fd_file(f), vec, vlen, &pos, flags); - fdput(f); } if (ret > 0) -- 2.47.2