X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fvc_screen.c;h=83aeedda200cfccc6724be4eaf8ce3c715b1c2d7;hb=b2c8daddcbe03a22402ecf943bb88302601c6835;hp=f66c7ad6fd387772b78799fad82464f0971d773d;hpb=d8762748cae4f85b3201c0304969d993b42d5258;p=linux-2.6 diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c index f66c7ad6fd..83aeedda20 100644 --- a/drivers/char/vc_screen.c +++ b/drivers/char/vc_screen.c @@ -21,22 +21,20 @@ * - making it shorter - scr_readw are macros which expand in PRETTY long code */ -#include #include #include #include #include -#include -#include #include #include #include +#include #include #include #include #include -#include #include + #include #include #include @@ -73,11 +71,11 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig) { int size; - down(&con_buf_sem); - size = vcs_size(file->f_dentry->d_inode); + mutex_lock(&con_buf_mtx); + size = vcs_size(file->f_path.dentry->d_inode); switch (orig) { default: - up(&con_buf_sem); + mutex_unlock(&con_buf_mtx); return -EINVAL; case 2: offset += size; @@ -88,11 +86,11 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig) break; } if (offset < 0 || offset > size) { - up(&con_buf_sem); + mutex_unlock(&con_buf_mtx); return -EINVAL; } file->f_pos = offset; - up(&con_buf_sem); + mutex_unlock(&con_buf_mtx); return file->f_pos; } @@ -100,7 +98,7 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig) static ssize_t vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct inode *inode = file->f_dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; unsigned int currcons = iminor(inode); struct vc_data *vc; long pos; @@ -109,7 +107,7 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) unsigned short *org = NULL; ssize_t ret; - down(&con_buf_sem); + mutex_lock(&con_buf_mtx); pos = *ppos; @@ -266,14 +264,14 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) ret = read; unlock_out: release_console_sem(); - up(&con_buf_sem); + mutex_unlock(&con_buf_mtx); return ret; } static ssize_t vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - struct inode *inode = file->f_dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; unsigned int currcons = iminor(inode); struct vc_data *vc; long pos; @@ -283,7 +281,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) u16 *org0 = NULL, *org = NULL; size_t ret; - down(&con_buf_sem); + mutex_lock(&con_buf_mtx); pos = *ppos; @@ -419,7 +417,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) while (this_round > 1) { unsigned short w; - w = get_unaligned(((const unsigned short *)con_buf0)); + w = get_unaligned(((unsigned short *)con_buf0)); vcs_scr_writew(vc, w, org++); con_buf0 += 2; this_round -= 2; @@ -453,7 +451,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) unlock_out: release_console_sem(); - up(&con_buf_sem); + mutex_unlock(&con_buf_mtx); return ret; } @@ -467,7 +465,7 @@ vcs_open(struct inode *inode, struct file *filp) return 0; } -static struct file_operations vcs_fops = { +static const struct file_operations vcs_fops = { .llseek = vcs_lseek, .read = vcs_read, .write = vcs_write, @@ -476,25 +474,18 @@ static struct file_operations vcs_fops = { static struct class *vc_class; -void vcs_make_devfs(struct tty_struct *tty) +void vcs_make_sysfs(struct tty_struct *tty) { - devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 1), - S_IFCHR|S_IRUSR|S_IWUSR, - "vcc/%u", tty->index + 1); - devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 129), - S_IFCHR|S_IRUSR|S_IWUSR, - "vcc/a%u", tty->index + 1); - class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), - NULL, "vcs%u", tty->index + 1); - class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), - NULL, "vcsa%u", tty->index + 1); + device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), + "vcs%u", tty->index + 1); + device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), + "vcsa%u", tty->index + 1); } -void vcs_remove_devfs(struct tty_struct *tty) + +void vcs_remove_sysfs(struct tty_struct *tty) { - devfs_remove("vcc/%u", tty->index + 1); - devfs_remove("vcc/a%u", tty->index + 1); - class_device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1)); - class_device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129)); + device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1)); + device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129)); } int __init vcs_init(void) @@ -503,9 +494,7 @@ int __init vcs_init(void) panic("unable to get major %d for vcs device", VCS_MAJOR); vc_class = class_create(THIS_MODULE, "vc"); - devfs_mk_cdev(MKDEV(VCS_MAJOR, 0), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/0"); - devfs_mk_cdev(MKDEV(VCS_MAJOR, 128), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/a0"); - class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs"); - class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa"); + device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), "vcs"); + device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), "vcsa"); return 0; }