lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

uml: tidy recently-moved code

Browse Source 
Now that the generic console operations are in a userspace file, we
can do the following:
	directly call into libc instead of through the os_* wrappers
	eliminate os_window_size since it has only one user

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike
2007-10-16 01:26:40 -07:00
committed by Linus Torvalds
parent 89fe64766a
commit 8e2d10e1e7
3 changed files with 15 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
arch/um/drivers/chan_user.c
View File

@@ -23,43 +23,43 @@
void generic_close(int fd, void *unused)
{
os_close_file(fd);
close(fd);
}
int generic_read(int fd, char *c_out, void *unused)
{
int n;
n = os_read_file(fd, c_out, sizeof(*c_out));
if(n == -EAGAIN)
n = read(fd, c_out, sizeof(*c_out));
if (n > 0)
return n;
else if (errno == EAGAIN)
return 0;
else if(n == 0)
else if (n == 0)
return -EIO;
return n;
return -errno;
}
/* XXX Trivial wrapper around os_write_file */
/* XXX Trivial wrapper around write */
int generic_write(int fd, const char *buf, int n, void *unused)
{
return os_write_file(fd, buf, n);
return write(fd, buf, n);
}
int generic_window_size(int fd, void *unused, unsigned short *rows_out,
unsigned short *cols_out)
{
int rows, cols;
struct winsize size;
int ret;
ret = os_window_size(fd, &rows, &cols);
if(ret < 0)
return ret;
if(ioctl(fd, TIOCGWINSZ, &size) < 0)
return -errno;
ret = ((*rows_out != rows) || (*cols_out != cols));
ret = ((*rows_out != size.ws_row) || (*cols_out != size.ws_col));
*rows_out = rows;
*cols_out = cols;
*rows_out = size.ws_row;
*cols_out = size.ws_col;
return ret;
}