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scst: Simplify the kernel_write() backport

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Instead of duplicating some of the scst_writev() implementation, always call
scst_writev().


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9188 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2020-11-23 15:56:18 +00:00
parent 2f58d0e48d
commit 9ac77f979d
1 changed files with 1 additions and 14 deletions
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15
scst/src/scst_lib.c
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@@ -5999,25 +5999,12 @@ static int scst_cmp_fs_ds(void)
ssize_t kernel_write(struct file *file, const void *buf, size_t count,
loff_t *pos)
{
mm_segment_t old_fs = get_fs();
ssize_t result;
set_fs(KERNEL_DS);
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
struct iovec iov = {
.iov_base = (void __force __user *)buf,
.iov_len = count
};
result = scst_writev(file, &iov, 1, pos);
#else
result = vfs_write(file, (void __force __user *)buf, count, pos);
#endif
}
set_fs(old_fs);
return result;
return scst_writev(file, &iov, 1, pos);
}
EXPORT_SYMBOL(kernel_write);
#endif