From ac751efa6a0d70f2c9daef5c7e3a92270f5c2dff Mon Sep 17 00:00:00 2001 From: Torben Hohn Date: Tue, 25 Jan 2011 15:07:35 -0800 Subject: console: rename acquire/release_console_sem() to console_lock/unlock() The -rt patches change the console_semaphore to console_mutex. As a result, a quite large chunk of the patches changes all acquire/release_console_sem() to acquire/release_console_mutex() This commit makes things use more neutral function names which dont make implications about the underlying lock. The only real change is the return value of console_trylock which is inverted from try_acquire_console_sem() This patch also paves the way to switching console_sem from a semaphore to a mutex. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert] Signed-off-by: Torben Hohn Cc: Thomas Gleixner Cc: Greg KH Cc: Ingo Molnar Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/mach-omap2/pm24xx.c | 4 +- arch/arm/mach-omap2/pm34xx.c | 4 +- arch/arm/mach-omap2/serial.c | 4 +- arch/parisc/kernel/pdc_cons.c | 4 +- drivers/char/bfin_jtag_comm.c | 8 +-- drivers/gpu/drm/nouveau/nouveau_drv.c | 8 +-- drivers/gpu/drm/radeon/radeon_device.c | 10 +-- drivers/staging/msm/msm_fb.c | 8 +-- drivers/staging/olpc_dcon/olpc_dcon.c | 10 +-- drivers/staging/sm7xx/smtcfb.c | 8 +-- drivers/tty/serial/sb1250-duart.c | 2 +- drivers/tty/tty_io.c | 4 +- drivers/tty/vt/selection.c | 4 +- drivers/tty/vt/vc_screen.c | 16 ++--- drivers/tty/vt/vt.c | 124 ++++++++++++++++----------------- drivers/tty/vt/vt_ioctl.c | 60 ++++++++-------- drivers/video/arkfb.c | 12 ++-- drivers/video/aty/aty128fb.c | 12 ++-- drivers/video/aty/atyfb_base.c | 10 +-- drivers/video/aty/radeon_pm.c | 10 +-- drivers/video/chipsfb.c | 8 +-- drivers/video/console/fbcon.c | 42 +++++------ drivers/video/da8xx-fb.c | 8 +-- drivers/video/fbmem.c | 12 ++-- drivers/video/fbsysfs.c | 20 +++--- drivers/video/geode/gxfb_core.c | 8 +-- drivers/video/geode/lxfb_core.c | 8 +-- drivers/video/i810/i810_main.c | 8 +-- drivers/video/jz4740_fb.c | 8 +-- drivers/video/mx3fb.c | 8 +-- drivers/video/nvidia/nvidia.c | 8 +-- drivers/video/ps3fb.c | 16 ++--- drivers/video/s3fb.c | 16 ++--- drivers/video/savage/savagefb_driver.c | 8 +-- drivers/video/sh_mobile_hdmi.c | 8 +-- drivers/video/sh_mobile_lcdcfb.c | 4 +- drivers/video/sm501fb.c | 8 +-- drivers/video/tmiofb.c | 10 +-- drivers/video/via/viafbdev.c | 8 +-- drivers/video/vt8623fb.c | 12 ++-- drivers/video/xen-fbfront.c | 4 +- fs/proc/consoles.c | 4 +- include/linux/console.h | 6 +- kernel/printk.c | 100 ++++++++++++++------------ 44 files changed, 336 insertions(+), 328 deletions(-) diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index 9e5dc8ed51e..97feb3ab6a6 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -134,7 +134,7 @@ static void omap2_enter_full_retention(void) /* Block console output in case it is on one of the OMAP UARTs */ if (!is_suspending()) - if (try_acquire_console_sem()) + if (!console_trylock()) goto no_sleep; omap_uart_prepare_idle(0); @@ -151,7 +151,7 @@ static void omap2_enter_full_retention(void) omap_uart_resume_idle(0); if (!is_suspending()) - release_console_sem(); + console_unlock(); no_sleep: if (omap2_pm_debug) { diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 8cbbeade4b8..a4aa1920a75 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -398,7 +398,7 @@ void omap_sram_idle(void) if (!is_suspending()) if (per_next_state < PWRDM_POWER_ON || core_next_state < PWRDM_POWER_ON) - if (try_acquire_console_sem()) + if (!console_trylock()) goto console_still_active; /* PER */ @@ -481,7 +481,7 @@ void omap_sram_idle(void) } if (!is_suspending()) - release_console_sem(); + console_unlock(); console_still_active: /* Disable IO-PAD and IO-CHAIN wakeup */ diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 302da7403a1..32e91a9c8b6 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -812,7 +812,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata) oh->dev_attr = uart; - acquire_console_sem(); /* in case the earlycon is on the UART */ + console_lock(); /* in case the earlycon is on the UART */ /* * Because of early UART probing, UART did not get idled @@ -838,7 +838,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata) omap_uart_block_sleep(uart); uart->timeout = DEFAULT_TIMEOUT; - release_console_sem(); + console_unlock(); if ((cpu_is_omap34xx() && uart->padconf) || (uart->wk_en && uart->wk_mask)) { diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 11bdd68e576..fc770be465f 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -169,11 +169,11 @@ static int __init pdc_console_tty_driver_init(void) struct console *tmp; - acquire_console_sem(); + console_lock(); for_each_console(tmp) if (tmp == &pdc_cons) break; - release_console_sem(); + console_unlock(); if (!tmp) { printk(KERN_INFO "PDC console driver not registered anymore, not creating %s\n", pdc_cons.name); diff --git a/drivers/char/bfin_jtag_comm.c b/drivers/char/bfin_jtag_comm.c index e397df3ad98..16402445f2b 100644 --- a/drivers/char/bfin_jtag_comm.c +++ b/drivers/char/bfin_jtag_comm.c @@ -183,16 +183,16 @@ bfin_jc_circ_write(const unsigned char *buf, int count) } #ifndef CONFIG_BFIN_JTAG_COMM_CONSOLE -# define acquire_console_sem() -# define release_console_sem() +# define console_lock() +# define console_unlock() #endif static int bfin_jc_write(struct tty_struct *tty, const unsigned char *buf, int count) { int i; - acquire_console_sem(); + console_lock(); i = bfin_jc_circ_write(buf, count); - release_console_sem(); + console_unlock(); wake_up_process(bfin_jc_kthread); return i; } diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c index 13bb672a16f..f658a04eecf 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.c +++ b/drivers/gpu/drm/nouveau/nouveau_drv.c @@ -234,9 +234,9 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state) pci_set_power_state(pdev, PCI_D3hot); } - acquire_console_sem(); + console_lock(); nouveau_fbcon_set_suspend(dev, 1); - release_console_sem(); + console_unlock(); nouveau_fbcon_restore_accel(dev); return 0; @@ -359,9 +359,9 @@ nouveau_pci_resume(struct pci_dev *pdev) nv_crtc->lut.depth = 0; } - acquire_console_sem(); + console_lock(); nouveau_fbcon_set_suspend(dev, 0); - release_console_sem(); + console_unlock(); nouveau_fbcon_zfill_all(dev); diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 26091d602b8..0d478932b1a 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -891,9 +891,9 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state) pci_disable_device(dev->pdev); pci_set_power_state(dev->pdev, PCI_D3hot); } - acquire_console_sem(); + console_lock(); radeon_fbdev_set_suspend(rdev, 1); - release_console_sem(); + console_unlock(); return 0; } @@ -905,11 +905,11 @@ int radeon_resume_kms(struct drm_device *dev) if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) return 0; - acquire_console_sem(); + console_lock(); pci_set_power_state(dev->pdev, PCI_D0); pci_restore_state(dev->pdev); if (pci_enable_device(dev->pdev)) { - release_console_sem(); + console_unlock(); return -1; } pci_set_master(dev->pdev); @@ -920,7 +920,7 @@ int radeon_resume_kms(struct drm_device *dev) radeon_restore_bios_scratch_regs(rdev); radeon_fbdev_set_suspend(rdev, 0); - release_console_sem(); + console_unlock(); /* reset hpd state */ radeon_hpd_init(rdev); diff --git a/drivers/staging/msm/msm_fb.c b/drivers/staging/msm/msm_fb.c index 23fa049b51f..a2f29d46405 100644 --- a/drivers/staging/msm/msm_fb.c +++ b/drivers/staging/msm/msm_fb.c @@ -347,7 +347,7 @@ static int msm_fb_suspend(struct platform_device *pdev, pm_message_t state) if ((!mfd) || (mfd->key != MFD_KEY)) return 0; - acquire_console_sem(); + console_lock(); fb_set_suspend(mfd->fbi, 1); ret = msm_fb_suspend_sub(mfd); @@ -358,7 +358,7 @@ static int msm_fb_suspend(struct platform_device *pdev, pm_message_t state) pdev->dev.power.power_state = state; } - release_console_sem(); + console_unlock(); return ret; } #else @@ -431,11 +431,11 @@ static int msm_fb_resume(struct platform_device *pdev) if ((!mfd) || (mfd->key != MFD_KEY)) return 0; - acquire_console_sem(); + console_lock(); ret = msm_fb_resume_sub(mfd); pdev->dev.power.power_state = PMSG_ON; fb_set_suspend(mfd->fbi, 1); - release_console_sem(); + console_unlock(); return ret; } diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c index 9f26dc9408b..56a283d1a74 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon.c +++ b/drivers/staging/olpc_dcon/olpc_dcon.c @@ -373,17 +373,17 @@ static void dcon_source_switch(struct work_struct *work) * * For now, we just hope.. */ - acquire_console_sem(); + console_lock(); ignore_fb_events = 1; if (fb_blank(fbinfo, FB_BLANK_UNBLANK)) { ignore_fb_events = 0; - release_console_sem(); + console_unlock(); printk(KERN_ERR "olpc-dcon: Failed to enter CPU mode\n"); dcon_pending = DCON_SOURCE_DCON; return; } ignore_fb_events = 0; - release_console_sem(); + console_unlock(); /* And turn off the DCON */ pdata->set_dconload(1); @@ -435,12 +435,12 @@ static void dcon_source_switch(struct work_struct *work) } } - acquire_console_sem(); + console_lock(); ignore_fb_events = 1; if (fb_blank(fbinfo, FB_BLANK_POWERDOWN)) printk(KERN_ERR "olpc-dcon: couldn't blank fb!\n"); ignore_fb_events = 0; - release_console_sem(); + console_unlock(); printk(KERN_INFO "olpc-dcon: The DCON has control\n"); break; diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c index 0bc113c44d3..d007e4a12c1 100644 --- a/drivers/staging/sm7xx/smtcfb.c +++ b/drivers/staging/sm7xx/smtcfb.c @@ -1044,9 +1044,9 @@ static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg) /* when doing suspend, call fb apis and pci apis */ if (msg.event == PM_EVENT_SUSPEND) { - acquire_console_sem(); + console_lock(); fb_set_suspend(&sfb->fb, 1); - release_console_sem(); + console_unlock(); retv = pci_save_state(pdev); pci_disable_device(pdev); retv = pci_choose_state(pdev, msg); @@ -1105,9 +1105,9 @@ static int __maybe_unused smtcfb_resume(struct pci_dev *pdev) smtcfb_setmode(sfb); - acquire_console_sem(); + console_lock(); fb_set_suspend(&sfb->fb, 0); - release_console_sem(); + console_unlock(); return 0; } diff --git a/drivers/tty/serial/sb1250-duart.c b/drivers/tty/serial/sb1250-duart.c index a2f2b325449..602d9845c52 100644 --- a/drivers/tty/serial/sb1250-duart.c +++ b/drivers/tty/serial/sb1250-duart.c @@ -829,7 +829,7 @@ static void __init sbd_probe_duarts(void) #ifdef CONFIG_SERIAL_SB1250_DUART_CONSOLE /* * Serial console stuff. Very basic, polling driver for doing serial - * console output. The console_sem is held by the caller, so we + * console output. The console_lock is held by the caller, so we * shouldn't be interrupted for more console activity. */ static void sbd_console_putchar(struct uart_port *uport, int ch) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 464d09d9787..6158eae0f64 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3256,7 +3256,7 @@ static ssize_t show_cons_active(struct device *dev, struct console *c; ssize_t count = 0; - acquire_console_sem(); + console_lock(); for (c = console_drivers; c; c = c->next) { if (!c->device) continue; @@ -3271,7 +3271,7 @@ static ssize_t show_cons_active(struct device *dev, while (i--) count += sprintf(buf + count, "%s%d%c", cs[i]->name, cs[i]->index, i ? ' ':'\n'); - release_console_sem(); + console_unlock(); return count; } diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c index ebae344ce91..c956ed6c83a 100644 --- a/drivers/tty/vt/selection.c +++ b/drivers/tty/vt/selection.c @@ -316,9 +316,9 @@ int paste_selection(struct tty_struct *tty) /* always called with BTM from vt_ioctl */ WARN_ON(!tty_locked()); - acquire_console_sem(); + console_lock(); poke_blanked_console(); - release_console_sem(); + console_unlock(); ld = tty_ldisc_ref(tty); if (!ld) { diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index eab3a1ff99e..a672ed192d3 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -202,7 +202,7 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) /* Select the proper current console and verify * sanity of the situation under the console lock. */ - acquire_console_sem(); + console_lock(); attr = (currcons & 128); currcons = (currcons & 127); @@ -336,9 +336,9 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) * the pagefault handling code may want to call printk(). */ - release_console_sem(); + console_unlock(); ret = copy_to_user(buf, con_buf_start, orig_count); - acquire_console_sem(); + console_lock(); if (ret) { read += (orig_count - ret); @@ -354,7 +354,7 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) if (read) ret = read; unlock_out: - release_console_sem(); + console_unlock(); mutex_unlock(&con_buf_mtx); return ret; } @@ -379,7 +379,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) /* Select the proper current console and verify * sanity of the situation under the console lock. */ - acquire_console_sem(); + console_lock(); attr = (currcons & 128); currcons = (currcons & 127); @@ -414,9 +414,9 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) /* Temporarily drop the console lock so that we can read * in the write data from userspace safely. */ - release_console_sem(); + console_unlock(); ret = copy_from_user(con_buf, buf, this_round); - acquire_console_sem(); + console_lock(); if (ret) { this_round -= ret; @@ -542,7 +542,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) vcs_scr_updated(vc); unlock_out: - release_console_sem(); + console_unlock(); mutex_unlock(&con_buf_mtx); diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 76407eca9ab..b230bd3f056 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1003,9 +1003,9 @@ static int vt_resize(struct tty_struct *tty, struct winsize *ws) struct vc_data *vc = tty->driver_data; int ret; - acquire_console_sem(); + console_lock(); ret = vc_do_resize(tty, vc, ws->ws_col, ws->ws_row); - release_console_sem(); + console_unlock(); return ret; } @@ -1271,7 +1271,7 @@ static void default_attr(struct vc_data *vc) vc->vc_color = vc->vc_def_color; } -/* console_sem is held */ +/* console_lock is held */ static void csi_m(struct vc_data *vc) { int i; @@ -1415,7 +1415,7 @@ int mouse_reporting(void) return vc_cons[fg_console].d->vc_report_mouse; } -/* console_sem is held */ +/* console_lock is held */ static void set_mode(struct vc_data *vc, int on_off) { int i; @@ -1485,7 +1485,7 @@ static void set_mode(struct vc_data *vc, int on_off) } } -/* console_sem is held */ +/* console_lock is held */ static void setterm_command(struct vc_data *vc) { switch(vc->vc_par[0]) { @@ -1545,7 +1545,7 @@ static void setterm_command(struct vc_data *vc) } } -/* console_sem is held */ +/* console_lock is held */ static void csi_at(struct vc_data *vc, unsigned int nr) { if (nr > vc->vc_cols - vc->vc_x) @@ -1555,7 +1555,7 @@ static void csi_at(struct vc_data *vc, unsigned int nr) insert_char(vc, nr); } -/* console_sem is held */ +/* console_lock is held */ static void csi_L(struct vc_data *vc, unsigned int nr) { if (nr > vc->vc_rows - vc->vc_y) @@ -1566,7 +1566,7 @@ static void csi_L(struct vc_data *vc, unsigned int nr) vc->vc_need_wrap = 0; } -/* console_sem is held */ +/* console_lock is held */ static void csi_P(struct vc_data *vc, unsigned int nr) { if (nr > vc->vc_cols - vc->vc_x) @@ -1576,7 +1576,7 @@ static void csi_P(struct vc_data *vc, unsigned int nr) delete_char(vc, nr); } -/* console_sem is held */ +/* console_lock is held */ static void csi_M(struct vc_data *vc, unsigned int nr) { if (nr > vc->vc_rows - vc->vc_y) @@ -1587,7 +1587,7 @@ static void csi_M(struct vc_data *vc, unsigned int nr) vc->vc_need_wrap = 0; } -/* console_sem is held (except via vc_init->reset_terminal */ +/* console_lock is held (except via vc_init->reset_terminal */ static void save_cur(struct vc_data *vc) { vc->vc_saved_x = vc->vc_x; @@ -1603,7 +1603,7 @@ static void save_cur(struct vc_data *vc) vc->vc_saved_G1 = vc->vc_G1_charset; } -/* console_sem is held */ +/* console_lock is held */ static void restore_cur(struct vc_data *vc) { gotoxy(vc, vc->vc_saved_x, vc->vc_saved_y); @@ -1625,7 +1625,7 @@ enum { ESnormal, ESesc, ESsquare, ESgetpars, ESgotpars, ESfunckey, EShash, ESsetG0, ESsetG1, ESpercent, ESignore, ESnonstd, ESpalette }; -/* console_sem is held (except via vc_init()) */ +/* console_lock is held (except via vc_init()) */ static void reset_terminal(struct vc_data *vc, int do_clear) { vc->vc_top = 0; @@ -1685,7 +1685,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear) csi_J(vc, 2); } -/* console_sem is held */ +/* console_lock is held */ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c) { /* @@ -2119,7 +2119,7 @@ static int is_double_width(uint32_t ucs) return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1); } -/* acquires console_sem */ +/* acquires console_lock */ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int count) { #ifdef VT_BUF_VRAM_ONLY @@ -2147,11 +2147,11 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co might_sleep(); - acquire_console_sem(); + console_lock(); vc = tty->driver_data; if (vc == NULL) { printk(KERN_ERR "vt: argh, driver_data is NULL !\n"); - release_console_sem(); + console_unlock(); return 0; } @@ -2159,7 +2159,7 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co if (!vc_cons_allocated(currcons)) { /* could this happen? */ printk_once("con_write: tty %d not allocated\n", currcons+1); - release_console_sem(); + console_unlock(); return 0; } @@ -2375,7 +2375,7 @@ rescan_last_byte: } FLUSH console_conditional_schedule(); - release_console_sem(); + console_unlock(); notify_update(vc); return n; #undef FLUSH @@ -2388,11 +2388,11 @@ rescan_last_byte: * us to do the switches asynchronously (needed when we want * to switch due to a keyboard interrupt). Synchronization * with other console code and prevention of re-entrancy is - * ensured with console_sem. + * ensured with console_lock. */ static void console_callback(struct work_struct *ignored) { - acquire_console_sem(); + console_lock(); if (want_console >= 0) { if (want_console != fg_console && @@ -2422,7 +2422,7 @@ static void console_callback(struct work_struct *ignored) } notify_update(vc_cons[fg_console].d); - release_console_sem(); + console_unlock(); } int set_console(int nr) @@ -2603,7 +2603,7 @@ static struct console vt_console_driver = { */ /* - * Generally a bit racy with respect to console_sem(). + * Generally a bit racy with respect to console_lock();. * * There are some functions which don't need it. * @@ -2629,17 +2629,17 @@ int tioclinux(struct tty_struct *tty, unsigned long arg) switch (type) { case TIOCL_SETSEL: - acquire_console_sem(); + console_lock(); ret = set_selection((struct tiocl_selection __user *)(p+1), tty); - release_console_sem(); + console_unlock(); break; case TIOCL_PASTESEL: ret = paste_selection(tty); break; case TIOCL_UNBLANKSCREEN: - acquire_console_sem(); + console_lock(); unblank_screen(); - release_console_sem(); + console_unlock(); break; case TIOCL_SELLOADLUT: ret = sel_loadlut(p); @@ -2688,10 +2688,10 @@ int tioclinux(struct tty_struct *tty, unsigned long arg) } break; case TIOCL_BLANKSCREEN: /* until explicitly unblanked, not only poked */ - acquire_console_sem(); + console_lock(); ignore_poke = 1; do_blank_screen(0); - release_console_sem(); + console_unlock(); break; case TIOCL_BLANKEDSCREEN: ret = console_blanked; @@ -2790,11 +2790,11 @@ static void con_flush_chars(struct tty_struct *tty) return; /* if we race with con_close(), vt may be null */ - acquire_console_sem(); + console_lock(); vc = tty->driver_data; if (vc) set_cursor(vc); - release_console_sem(); + console_unlock(); } /* @@ -2805,7 +2805,7 @@ static int con_open(struct tty_struct *tty, struct file *filp) unsigned int currcons = tty->index; int ret = 0; - acquire_console_sem(); + console_lock(); if (tty->driver_data == NULL) { ret = vc_allocate(currcons); if (ret == 0) { @@ -2813,7 +2813,7 @@ static int con_open(struct tty_struct *tty, struct file *filp) /* Still being freed */ if (vc->port.tty) { - release_console_sem(); + console_unlock(); return -ERESTARTSYS; } tty->driver_data = vc; @@ -2827,11 +2827,11 @@ static int con_open(struct tty_struct *tty, struct file *filp) tty->termios->c_iflag |= IUTF8; else tty->termios->c_iflag &= ~IUTF8; - release_console_sem(); + console_unlock(); return ret; } } - release_console_sem(); + console_unlock(); return ret; } @@ -2844,9 +2844,9 @@ static void con_shutdown(struct tty_struct *tty) { struct vc_data *vc = tty->driver_data; BUG_ON(vc == NULL); - acquire_console_sem(); + console_lock(); vc->port.tty = NULL; - release_console_sem(); + console_unlock(); tty_shutdown(tty); } @@ -2893,13 +2893,13 @@ static int __init con_init(void) struct vc_data *vc; unsigned int currcons = 0, i; - acquire_console_sem(); + console_lock(); if (conswitchp) display_desc = conswitchp->con_startup(); if (!display_desc) { fg_console = 0; - release_console_sem(); + console_unlock(); return 0; } @@ -2946,7 +2946,7 @@ static int __init con_init(void) printable = 1; printk("\n"); - release_console_sem(); + console_unlock(); #ifdef CONFIG_VT_CONSOLE register_console(&vt_console_driver); @@ -3037,7 +3037,7 @@ static int bind_con_driver(const struct consw *csw, int first, int last, if (!try_module_get(owner)) return -ENODEV; - acquire_console_sem(); + console_lock(); /* check if driver is registered */ for (i = 0; i < MAX_NR_CON_DRIVER; i++) { @@ -3122,7 +3122,7 @@ static int bind_con_driver(const struct consw *csw, int first, int last, retval = 0; err: - release_console_sem(); + console_unlock(); module_put(owner); return retval; }; @@ -3171,7 +3171,7 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt) if (!try_module_get(owner)) return -ENODEV; - acquire_console_sem(); + console_lock(); /* check if driver is registered and if it is unbindable */ for (i = 0; i < MAX_NR_CON_DRIVER; i++) { @@ -3185,7 +3185,7 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt) } if (retval) { - release_console_sem(); + console_unlock(); goto err; } @@ -3204,12 +3204,12 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt) } if (retval) { - release_console_sem(); + console_unlock(); goto err; } if (!con_is_bound(csw)) { - release_console_sem(); + console_unlock(); goto err; } @@ -3238,7 +3238,7 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt) if (!con_is_bound(csw)) con_driver->flag &= ~CON_DRIVER_FLAG_INIT; - release_console_sem(); + console_unlock(); /* ignore return value, binding should not fail */ bind_con_driver(defcsw, first, last, deflt); err: @@ -3538,7 +3538,7 @@ int register_con_driver(const struct consw *csw, int first, int last) if (!try_module_get(owner)) return -ENODEV; - acquire_console_sem(); + console_lock(); for (i = 0; i < MAX_NR_CON_DRIVER; i++) { con_driver = ®istered_con_driver[i]; @@ -3592,7 +3592,7 @@ int register_con_driver(const struct consw *csw, int first, int last) } err: - release_console_sem(); + console_unlock(); module_put(owner); return retval; } @@ -3613,7 +3613,7 @@ int unregister_con_driver(const struct consw *csw) { int i, retval = -ENODEV; - acquire_console_sem(); + console_lock(); /* cannot unregister a bound driver */ if (con_is_bound(csw)) @@ -3639,7 +3639,7 @@ int unregister_con_driver(const struct consw *csw) } } err: - release_console_sem(); + console_unlock(); return retval; } EXPORT_SYMBOL(unregister_con_driver); @@ -3934,9 +3934,9 @@ int con_set_cmap(unsigned char __user *arg) { int rc; - acquire_console_sem(); + console_lock(); rc = set_get_cmap (arg,1); - release_console_sem(); + console_unlock(); return rc; } @@ -3945,9 +3945,9 @@ int con_get_cmap(unsigned char __user *arg) { int rc; - acquire_console_sem(); + console_lock(); rc = set_get_cmap (arg,0); - release_console_sem(); + console_unlock(); return rc; } @@ -3994,12 +3994,12 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op) } else font.data = NULL; - acquire_console_sem(); + console_lock(); if (vc->vc_sw->con_font_get) rc = vc->vc_sw->con_font_get(vc, &font); else rc = -ENOSYS; - release_console_sem(); + console_unlock(); if (rc) goto out; @@ -4076,12 +4076,12 @@ static int con_font_set(struct vc_data *vc, struct console_font_op *op) font.data = memdup_user(op->data, size); if (IS_ERR(font.data)) return PTR_ERR(font.data); - acquire_console_sem(); + console_lock(); if (vc->vc_sw->con_font_set) rc = vc->vc_sw->con_font_set(vc, &font, op->flags); else rc = -ENOSYS; - release_console_sem(); + console_unlock(); kfree(font.data); return rc; } @@ -4103,12 +4103,12 @@ static int con_font_default(struct vc_data *vc, struct console_font_op *op) else name[MAX_FONT_NAME - 1] = 0; - acquire_console_sem(); + console_lock(); if (vc->vc_sw->con_font_default) rc = vc->vc_sw->con_font_default(vc, &font, s); else rc = -ENOSYS; - release_console_sem(); + console_unlock(); if (!rc) { op->width = font.width; op->height = font.height; @@ -4124,7 +4124,7 @@ static int con_font_copy(struct vc_data *vc, struct console_font_op *op) if (vc->vc_mode != KD_TEXT) return -EINVAL; - acquire_console_sem(); + console_lock(); if (!vc->vc_sw->con_font_copy) rc = -ENOSYS; else if (con < 0 || !vc_cons_allocated(con)) @@ -4133,7 +4133,7 @@ static int con_font_copy(struct vc_data *vc, struct console_font_op *op) rc = 0; else rc = vc->vc_sw->con_font_copy(vc, con); - release_console_sem(); + console_unlock(); return rc; } diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index 6b68a0fb461..1235ebda6e1 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -649,12 +649,12 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, /* * explicitly blank/unblank the screen if switching modes */ - acquire_console_sem(); + console_lock(); if (arg == KD_TEXT) do_unblank_screen(1); else do_blank_screen(1); - release_console_sem(); + console_unlock(); break; case KDGETMODE: @@ -893,7 +893,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, ret = -EINVAL; goto out; } - acquire_console_sem(); + console_lock(); vc->vt_mode = tmp; /* the frsig is ignored, so we set it to 0 */ vc->vt_mode.frsig = 0; @@ -901,7 +901,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, vc->vt_pid = get_pid(task_pid(current)); /* no switch is required -- saw@shade.msu.ru */ vc->vt_newvt = -1; - release_console_sem(); + console_unlock(); break; } @@ -910,9 +910,9 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, struct vt_mode tmp; int rc; - acquire_console_sem(); + console_lock(); memcpy(&tmp, &vc->vt_mode, sizeof(struct vt_mode)); - release_console_sem(); + console_unlock(); rc = copy_to_user(up, &tmp, sizeof(struct vt_mode)); if (rc) @@ -965,9 +965,9 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, ret = -ENXIO; else { arg--; - acquire_console_sem(); + console_lock(); ret = vc_allocate(arg); - release_console_sem(); + console_unlock(); if (ret) break; set_console(arg); @@ -990,7 +990,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, ret = -ENXIO; else { vsa.console--; - acquire_console_sem(); + console_lock(); ret = vc_allocate(vsa.console); if (ret == 0) { struct vc_data *nvc; @@ -1003,7 +1003,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, put_pid(nvc->vt_pid); nvc->vt_pid = get_pid(task_pid(current)); } - release_console_sem(); + console_unlock(); if (ret) break; /* Commence switch and lock */ @@ -1044,7 +1044,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, /* * Switching-from response */ - acquire_console_sem(); + console_lock(); if (vc->vt_newvt >= 0) { if (arg == 0) /* @@ -1063,7 +1063,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, vc->vt_newvt = -1; ret = vc_allocate(newvt); if (ret) { - release_console_sem(); + console_unlock(); break; } /* @@ -1083,7 +1083,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, if (arg != VT_ACKACQ) ret = -EINVAL; } - release_console_sem(); + console_unlock(); break; /* @@ -1096,20 +1096,20 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, } if (arg == 0) { /* deallocate all unused consoles, but leave 0 */ - acquire_console_sem(); + console_lock(); for (i=1; iv_cols)) ret = -EFAULT; else { - acquire_console_sem(); + console_lock(); for (i = 0; i < MAX_NR_CONSOLES; i++) { vc = vc_cons[i].d; @@ -1135,7 +1135,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, vc_resize(vc_cons[i].d, cc, ll); } } - release_console_sem(); + console_unlock(); } break; } @@ -1187,14 +1187,14 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, for (i = 0; i < MAX_NR_CONSOLES; i++) { if (!vc_cons[i].d) continue; - acquire_console_sem(); + console_lock(); if (vlin) vc_cons[i].d->vc_scan_lines = vlin; if (clin) vc_cons[i].d->vc_font.height = clin; vc_cons[i].d->vc_resize_user = 1; vc_resize(vc_cons[i].d, cc, ll); - release_console_sem(); + console_unlock(); } break; } @@ -1367,7 +1367,7 @@ void vc_SAK(struct work_struct *work) struct vc_data *vc; struct tty_struct *tty; - acquire_console_sem(); + console_lock(); vc = vc_con->d; if (vc) { tty = vc->port.tty; @@ -1379,7 +1379,7 @@ void vc_SAK(struct work_struct *work) __do_SAK(tty); reset_vc(vc); } - release_console_sem(); + console_unlock(); } #ifdef CONFIG_COMPAT @@ -1737,10 +1737,10 @@ int vt_move_to_console(unsigned int vt, int alloc) { int prev; - acquire_console_sem(); + console_lock(); /* Graphics mode - up to X */ if (disable_vt_switch) { - release_console_sem(); + console_unlock(); return 0; } prev = fg_console; @@ -1748,7 +1748,7 @@ int vt_move_to_console(unsigned int vt, int alloc) if (alloc && vc_allocate(vt)) { /* we can't have a free VC for now. Too bad, * we don't want to mess the screen for now. */ - release_console_sem(); + console_unlock(); return -ENOSPC; } @@ -1758,10 +1758,10 @@ int vt_move_to_console(unsigned int vt, int alloc) * Let the calling function know so it can decide * what to do. */ - release_console_sem(); + console_unlock(); return -EIO; } - release_console_sem(); + console_unlock(); tty_lock(); if (vt_waitactive(vt + 1)) { pr_debug("Suspend: Can't switch VCs."); @@ -1781,8 +1781,8 @@ int vt_move_to_console(unsigned int vt, int alloc) */ void pm_set_vt_switch(int do_switch) { - acquire_console_sem(); + console_lock(); disable_vt_switch = !do_switch; - release_console_sem(); + console_unlock(); } EXPORT_SYMBOL(pm_set_vt_switch); diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c index d583bea608f..391ac939f01 100644 --- a/drivers/video/arkfb.c +++ b/drivers/video/arkfb.c @@ -23,7 +23,7 @@ #include #include #include -#include /* Why should fb driver call console functions? because acquire_console_sem() */ +#include /* Why should fb driver call console functions? because console_lock() */ #include