AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 06:30:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

splice: check f_mode for seekable file

Browse Source 
check f_mode for seekable file

As a seekable file is allowed without a llseek function, so the old way isn't
work any more.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
----
 fs/splice.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Changli Gao 2010-06-29 13:10:36 +02:00 committed by Jens Axboe
parent 2cb4b05e76
commit 19c9a49b43
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/splice.c
View File

@ -1372,8 +1372,7 @@ static long do_splice(struct file *in, loff_t __user *off_in,
if (off_in) if (off_in)
return -ESPIPE; return -ESPIPE;
if (off_out) { if (off_out) {
if (!out->f_op || !out->f_op->llseek || if (!(out->f_mode & FMODE_PWRITE))
out->f_op->llseek == no_llseek)
return -EINVAL; return -EINVAL;
if (copy_from_user(&offset, off_out, sizeof(loff_t))) if (copy_from_user(&offset, off_out, sizeof(loff_t)))
return -EFAULT; return -EFAULT;
@ -1393,8 +1392,7 @@ static long do_splice(struct file *in, loff_t __user *off_in,
if (off_out) if (off_out)
return -ESPIPE; return -ESPIPE;
if (off_in) { if (off_in) {
if (!in->f_op || !in->f_op->llseek || if (!(in->f_mode & FMODE_PREAD))
in->f_op->llseek == no_llseek)
return -EINVAL; return -EINVAL;
if (copy_from_user(&offset, off_in, sizeof(loff_t))) if (copy_from_user(&offset, off_in, sizeof(loff_t)))
return -EFAULT; return -EFAULT;