Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6

0cb583fd · Linus Torvalds <[email protected]> · 2009-09-15 10:01:16 -07:00

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6:
  ide: fixup for fujitsu disk
  ide: convert to ->proc_fops
  at91_ide: remove headers specific for at91sam9263
  IDE: palm_bk3710: convert clock usage after clkdev conversion
  ide: fix races in handling of user-space SET XFER commands
  ide: allow ide_dev_read_id() to be called from the IRQ context
  ide: ide-taskfile.c fix style problems
  drivers/ide/ide-cd.c: Use DIV_ROUND_CLOSEST
  ide-tape: fix handling of postponed rqs
  ide-tape: convert to ide_debug_log macro
  ide-tape: fix debug call
  ide: Fix annoying warning in ide_pio_bytes().
  IDE: Save a call to PageHighMem()

Commit: 0cb583fd2862f19ea88b02eb307d11c09e51e2f8
Parents: 723e9db7 · a2d10568

Merge commit. Changes below are compared with the first parent: 723e9db7.

Changes

12 files changed · +522 −385

File	Status	Add	Del	Content
drivers/ide/at91_ide.c	modified	+0	−2	View file
drivers/ide/ide-cd.c	modified	+22	−10	View file
drivers/ide/ide-disk_proc.c	modified	+85	−44	View file
drivers/ide/ide-floppy_proc.c	modified	+21	−9	View file
drivers/ide/ide-ioctls.c	modified	+2	−6	View file
drivers/ide/ide-iops.c	modified	+4	−13	View file
drivers/ide/ide-probe.c	modified	+21	−10	View file
drivers/ide/ide-proc.c	modified	+217	−123	View file
drivers/ide/ide-tape.c	modified	+78	−82	View file
drivers/ide/ide-taskfile.c	modified	+64	−62	View file
drivers/ide/palm_bk3710.c	modified	+1	−1	View file
include/linux/ide.h	modified	+7	−23	View file

Only the first 600 diff lines are shown. Download the complete patch.

drivers/ide/at91_ide.c

View file

diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index dbfeda4..248219a 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -29,9 +29,7 @@
 
 #include <mach/board.h>
 #include <mach/gpio.h>
-#include <mach/at91sam9263.h>
 #include <mach/at91sam9_smc.h>
-#include <mach/at91sam9263_matrix.h>
 
 #define DRV_NAME "at91_ide"
 

drivers/ide/ide-cd.c

View file

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 6a9a769..b79ca41 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/timer.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/errno.h>
@@ -1146,8 +1147,8 @@ void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
 	ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
 				     curspeed, maxspeed);
 
-	cd->current_speed = (curspeed + (176/2)) / 176;
-	cd->max_speed = (maxspeed + (176/2)) / 176;
+	cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176);
+	cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176);
 }
 
 #define IDE_CD_CAPABILITIES \
@@ -1389,19 +1390,30 @@ static sector_t ide_cdrom_capacity(ide_drive_t *drive)
 	return capacity * sectors_per_frame;
 }
 
-static int proc_idecd_read_capacity(char *page, char **start, off_t off,
-					int count, int *eof, void *data)
+static int idecd_capacity_proc_show(struct seq_file *m, void *v)
 {
-	ide_drive_t *drive = data;
-	int len;
+	ide_drive_t *drive = m->private;
 
-	len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive));
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+	seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive));
+	return 0;
+}
+
+static int idecd_capacity_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, idecd_capacity_proc_show, PDE(inode)->data);
 }
 
+static const struct file_operations idecd_capacity_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= idecd_capacity_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static ide_proc_entry_t idecd_proc[] = {
-	{ "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL },
-	{ NULL, 0, NULL, NULL }
+	{ "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops },
+	{}
 };
 
 static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)

drivers/ide/ide-disk_proc.c

View file

diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c
index 19f263b..60b0590 100644
--- a/drivers/ide/ide-disk_proc.c
+++ b/drivers/ide/ide-disk_proc.c
@@ -1,5 +1,6 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
+#include <linux/seq_file.h>
 
 #include "ide-disk.h"
 
@@ -37,77 +38,117 @@ static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
 	return ide_raw_taskfile(drive, &cmd, buf, 1);
 }
 
-static int proc_idedisk_read_cache
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int idedisk_cache_proc_show(struct seq_file *m, void *v)
 {
-	ide_drive_t	*drive = (ide_drive_t *) data;
-	char		*out = page;
-	int		len;
+	ide_drive_t	*drive = (ide_drive_t *) m->private;
 
 	if (drive->dev_flags & IDE_DFLAG_ID_READ)
-		len = sprintf(out, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2);
+		seq_printf(m, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2);
 	else
-		len = sprintf(out, "(none)\n");
+		seq_printf(m, "(none)\n");
+	return 0;
+}
 
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+static int idedisk_cache_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, idedisk_cache_proc_show, PDE(inode)->data);
 }
 
-static int proc_idedisk_read_capacity
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static const struct file_operations idedisk_cache_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= idedisk_cache_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int idedisk_capacity_proc_show(struct seq_file *m, void *v)
 {
-	ide_drive_t*drive = (ide_drive_t *)data;
-	int len;
+	ide_drive_t*drive = (ide_drive_t *)m->private;
 
-	len = sprintf(page, "%llu\n", (long long)ide_gd_capacity(drive));
+	seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive));
+	return 0;
+}
 
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+static int idedisk_capacity_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, idedisk_capacity_proc_show, PDE(inode)->data);
 }
 
-static int proc_idedisk_read_smart(char *page, char **start, off_t off,
-				   int count, int *eof, void *data, u8 sub_cmd)
+static const struct file_operations idedisk_capacity_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= idedisk_capacity_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __idedisk_proc_show(struct seq_file *m, ide_drive_t *drive, u8 sub_cmd)
 {
-	ide_drive_t	*drive = (ide_drive_t *)data;
-	int		len = 0, i = 0;
+	u8 *buf;
+
+	buf = kmalloc(SECTOR_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
 
 	(void)smart_enable(drive);
 
-	if (get_smart_data(drive, page, sub_cmd) == 0) {
-		unsigned short *val = (unsigned short *) page;
-		char *out = (char *)val + SECTOR_SIZE;
-
-		page = out;
-		do {
-			out += sprintf(out, "%04x%c", le16_to_cpu(*val),
-				       (++i & 7) ? ' ' : '\n');
-			val += 1;
-		} while (i < SECTOR_SIZE / 2);
-		len = out - page;
+	if (get_smart_data(drive, buf, sub_cmd) == 0) {
+		__le16 *val = (__le16 *)buf;
+		int i;
+
+		for (i = 0; i < SECTOR_SIZE / 2; i++) {
+			seq_printf(m, "%04x%c", le16_to_cpu(val[i]),
+					(i % 8) == 7 ? '\n' : ' ');
+		}
 	}
+	kfree(buf);
+	return 0;
+}
 
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+static int idedisk_sv_proc_show(struct seq_file *m, void *v)
+{
+	return __idedisk_proc_show(m, m->private, ATA_SMART_READ_VALUES);
 }
 
-static int proc_idedisk_read_sv
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int idedisk_sv_proc_open(struct inode *inode, struct file *file)
 {
-	return proc_idedisk_read_smart(page, start, off, count, eof, data,
-				       ATA_SMART_READ_VALUES);
+	return single_open(file, idedisk_sv_proc_show, PDE(inode)->data);
 }
 
-static int proc_idedisk_read_st
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static const struct file_operations idedisk_sv_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= idedisk_sv_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int idedisk_st_proc_show(struct seq_file *m, void *v)
 {
-	return proc_idedisk_read_smart(page, start, off, count, eof, data,
-				       ATA_SMART_READ_THRESHOLDS);
+	return __idedisk_proc_show(m, m->private, ATA_SMART_READ_THRESHOLDS);
 }
 
+static int idedisk_st_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, idedisk_st_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations idedisk_st_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= idedisk_st_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 ide_proc_entry_t ide_disk_proc[] = {
-	{ "cache",	  S_IFREG|S_IRUGO, proc_idedisk_read_cache,    NULL },
-	{ "capacity",	  S_IFREG|S_IRUGO, proc_idedisk_read_capacity, NULL },
-	{ "geometry",	  S_IFREG|S_IRUGO, proc_ide_read_geometry,     NULL },
-	{ "smart_values", S_IFREG|S_IRUSR, proc_idedisk_read_sv,       NULL },
-	{ "smart_thresholds", S_IFREG|S_IRUSR, proc_idedisk_read_st,   NULL },
-	{ NULL, 0, NULL, NULL }
+	{ "cache",	  S_IFREG|S_IRUGO, &idedisk_cache_proc_fops	},
+	{ "capacity",	  S_IFREG|S_IRUGO, &idedisk_capacity_proc_fops	},
+	{ "geometry",	  S_IFREG|S_IRUGO, &ide_geometry_proc_fops	},
+	{ "smart_values", S_IFREG|S_IRUSR, &idedisk_sv_proc_fops	},
+	{ "smart_thresholds", S_IFREG|S_IRUSR, &idedisk_st_proc_fops	},
+	{}
 };
 
 ide_devset_rw_field(bios_cyl, bios_cyl);

drivers/ide/ide-floppy_proc.c

View file

diff --git a/drivers/ide/ide-floppy_proc.c b/drivers/ide/ide-floppy_proc.c
index fcd4d81..d711d9b 100644
--- a/drivers/ide/ide-floppy_proc.c
+++ b/drivers/ide/ide-floppy_proc.c
@@ -1,22 +1,34 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
+#include <linux/seq_file.h>
 
 #include "ide-floppy.h"
 
-static int proc_idefloppy_read_capacity(char *page, char **start, off_t off,
-		int count, int *eof, void *data)
+static int idefloppy_capacity_proc_show(struct seq_file *m, void *v)
 {
-	ide_drive_t*drive = (ide_drive_t *)data;
-	int len;
+	ide_drive_t*drive = (ide_drive_t *)m->private;
 
-	len = sprintf(page, "%llu\n", (long long)ide_gd_capacity(drive));
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+	seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive));
+	return 0;
 }
 
+static int idefloppy_capacity_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, idefloppy_capacity_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations idefloppy_capacity_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= idefloppy_capacity_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 ide_proc_entry_t ide_floppy_proc[] = {
-	{ "capacity",	S_IFREG|S_IRUGO, proc_idefloppy_read_capacity,	NULL },
-	{ "geometry",	S_IFREG|S_IRUGO, proc_ide_read_geometry,	NULL },
-	{ NULL, 0, NULL, NULL }
+	{ "capacity",	S_IFREG|S_IRUGO, &idefloppy_capacity_proc_fops	},
+	{ "geometry",	S_IFREG|S_IRUGO, &ide_geometry_proc_fops	},
+	{}
 };
 
 ide_devset_rw_field(bios_cyl, bios_cyl);

drivers/ide/ide-ioctls.c

View file

diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index e246d3d..d3440b5 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -167,6 +167,8 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 			err = -EINVAL;
 			goto abort;
 		}
+
+		cmd.tf_flags |= IDE_TFLAG_SET_XFER;
 	}
 
 	err = ide_raw_taskfile(drive, &cmd, buf, args[3]);
@@ -174,12 +176,6 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 	args[0] = tf->status;
 	args[1] = tf->error;
 	args[2] = tf->nsect;
-
-	if (!err && xfer_rate) {
-		/* active-retuning-calls future */
-		ide_set_xfer_rate(drive, xfer_rate);
-		ide_driveid_update(drive);
-	}
 abort:
 	if (copy_to_user((void __user *)arg, &args, 4))
 		err = -EFAULT;

drivers/ide/ide-iops.c

View file

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 2892b24..222c1ef 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -102,8 +102,8 @@ EXPORT_SYMBOL(ide_fixstring);
  * setting a timer to wake up at half second intervals thereafter,
  * until timeout is achieved, before timing out.
  */
-static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad,
-			   unsigned long timeout, u8 *rstat)
+int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad,
+		    unsigned long timeout, u8 *rstat)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
@@ -292,6 +292,7 @@ static const char *nien_quirk_list[] = {
 	"QUANTUM FIREBALLP KX27.3",
 	"QUANTUM FIREBALLP LM20.4",
 	"QUANTUM FIREBALLP LM20.5",
+	"FUJITSU MHZ2160BH G2",
 	NULL
 };
 
@@ -316,7 +317,7 @@ int ide_driveid_update(ide_drive_t *drive)
 		return 0;
 
 	SELECT_MASK(drive, 1);
-	rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id);
+	rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id, 1);
 	SELECT_MASK(drive, 0);
 
 	if (rc)
@@ -363,14 +364,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 	 * this point (lost interrupt).
 	 */
 
-	/*
-	 *	FIXME: we race against the running IRQ here if
-	 *	this is called from non IRQ context. If we use
-	 *	disable_irq() we hang on the error path. Work
-	 *	is needed.
-	 */
-	disable_irq_nosync(hwif->irq);
-
 	udelay(1);
 	tp_ops->dev_select(drive);
 	SELECT_MASK(drive, 1);
@@ -394,8 +387,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 
 	SELECT_MASK(drive, 0);
 
-	enable_irq(hwif->irq);
-
 	if (error) {
 		(void) ide_dump_status(drive, "set_drive_speed_status", stat);
 		return error;

drivers/ide/ide-probe.c

View file

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 1bb106f..8de442c 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -238,6 +238,7 @@ static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
  *	@drive: drive to identify
  *	@cmd: command to use
  *	@id: buffer for IDENTIFY data
+ *	@irq_ctx: flag set when called from the IRQ context
  *
  *	Sends an ATA(PI) IDENTIFY request to a drive and waits for a response.
  *
@@ -246,7 +247,7 @@ static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
  *			2  device aborted the command (refused to identify itself)
  */
 
-int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
+int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id, int irq_ctx)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -263,7 +264,10 @@ int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
 		tp_ops->write_devctl(hwif, ATA_NIEN | ATA_DEVCTL_OBS);
 
 	/* take a deep breath */
-	msleep(50);
+	if (irq_ctx)
+		mdelay(50);
+	else
+		msleep(50);
 
 	if (io_ports->ctl_addr &&
 	    (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0) {
@@ -295,12 +299,19 @@ int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
 
 	timeout = ((cmd == ATA_CMD_ID_ATA) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
 
-	if (ide_busy_sleep(drive, timeout, use_altstatus))
-		return 1;
-
 	/* wait for IRQ and ATA_DRQ */
-	msleep(50);
-	s = tp_ops->read_status(hwif);
+	if (irq_ctx) {
+		rc = __ide_wait_stat(drive, ATA_DRQ, BAD_R_STAT, timeout, &s);
+		if (rc)
+			return 1;
+	} else {
+		rc = ide_busy_sleep(drive, timeout, use_altstatus);
+		if (rc)
+			return 1;
+
+		msleep(50);
+		s = tp_ops->read_status(hwif);
+	}
 
 	if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) {
 		/* drive returned ID */
@@ -406,10 +417,10 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
 
 	if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) ||
 	    present || cmd == ATA_CMD_ID_ATAPI) {
-		rc = ide_dev_read_id(drive, cmd, id);
+		rc = ide_dev_read_id(drive, cmd, id, 0);
 		if (rc)
 			/* failed: try again */
-			rc = ide_dev_read_id(drive, cmd, id);
+			rc = ide_dev_read_id(drive, cmd, id, 0);
 
 		stat = tp_ops->read_status(hwif);
 
@@ -424,7 +435,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
 			msleep(50);
 			tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
 			(void)ide_busy_sleep(drive, WAIT_WORSTCASE, 0);
-			rc = ide_dev_read_id(drive, cmd, id);
+			rc = ide_dev_read_id(drive, cmd, id, 0);
 		}
 
 		/* ensure drive IRQ is clear */

drivers/ide/ide-proc.c

View file

diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index 3242698..28d09a5 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -30,11 +30,9 @@
 
 static struct proc_dir_entry *proc_ide_root;
 
-static int proc_ide_read_imodel
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int ide_imodel_proc_show(struct seq_file *m, void *v)
 {
-	ide_hwif_t	*hwif = (ide_hwif_t *) data;
-	int		len;
+	ide_hwif_t	*hwif = (ide_hwif_t *) m->private;
 	const char	*name;
 
 	switch (hwif->chipset) {
@@ -53,63 +51,108 @@ static int proc_ide_read_imodel
 	case ide_acorn:		name = "acorn";		break;
 	default:		name = "(unknown)";	break;
 	}
-	len = sprintf(page, "%s\n", name);
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+	seq_printf(m, "%s\n", name);
+	return 0;
 }
 
-static int proc_ide_read_mate
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int ide_imodel_proc_open(struct inode *inode, struct file *file)
 {
-	ide_hwif_t	*hwif = (ide_hwif_t *) data;
-	int		len;
+	return single_open(file, ide_imodel_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations ide_imodel_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ide_imodel_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int ide_mate_proc_show(struct seq_file *m, void *v)
+{
+	ide_hwif_t	*hwif = (ide_hwif_t *) m->private;
 
 	if (hwif && hwif->mate)
-		len = sprintf(page, "%s\n", hwif->mate->name);
+		seq_printf(m, "%s\n", hwif->mate->name);
 	else
-		len = sprintf(page, "(none)\n");
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+		seq_printf(m, "(none)\n");
+	return 0;
+}
+
+static int ide_mate_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, ide_mate_proc_show, PDE(inode)->data);
 }
 
-static int proc_ide_read_channel
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static const struct file_operations ide_mate_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ide_mate_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int ide_channel_proc_show(struct seq_file *m, void *v)
 {
-	ide_hwif_t	*hwif = (ide_hwif_t *) data;
-	int		len;
+	ide_hwif_t	*hwif = (ide_hwif_t *) m->private;
 
-	page[0] = hwif->channel ? '1' : '0';
-	page[1] = '\n';
-	len = 2;
-	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+	seq_printf(m, "%c\n", hwif->channel ? '1' : '0');
+	return 0;
 }
 
-static int proc_ide_read_identify
-	(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int ide_channel_proc_open(struct inode *inode, struct file *file)
 {
-	ide_drive_t	*drive = (ide_drive_t *)data;
-	int		len = 0, i = 0;
-	int		err = 0;
+	return single_open(file, ide_channel_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations ide_channel_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ide_channel_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
 
-	len = sprintf(page, "\n");
+static int ide_identify_proc_show(struct seq_file *m, void *v)
+{
+	ide_drive_t *drive = (ide_drive_t *)m->private;
+	u8 *buf;
 
-	if (drive) {
-		__le16 *val = (__le16 *)page;
+	if (!drive) {
+		seq_putc(m, '\n');
+		return 0;
+	}
 
-		err = taskfile_lib_get_identify(drive, page);
-		if (!err) {
-			char *out = (char *)page + SECTOR_SIZE;
+	buf = kmalloc(SECTOR_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+	if (taskfile_lib_get_identify(drive, buf) == 0) {
+		__le16 *val = (__le16 *)buf;
+		int i;
 
-			page = out;
-			do {
-				out += sprintf(out, "%04x%c",
-					le16_to_cpup(val), (++i & 7) ? ' ' : '\n');
-				val += 1;
-			} while (i < SECTOR_SIZE / 2);
-			len = out - page;
+		for (i = 0; i < SECTOR_SIZE / 2; i++) {
+			seq_printf(m, "%04x%c", le16_to_cpu(val[i]),
+					(i % 8) == 7 ? '\n' : ' ');
 		}
-	}

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drivers/ide/ide-tape.c

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drivers/ide/ide-taskfile.c

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drivers/ide/palm_bk3710.c

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include/linux/ide.h

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