From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: linux-ide@vger.kernel.org
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 12/19] ide: remove ide_drive_t.usage
Date: Fri, 12 Jan 2007 05:27:22 +0100 [thread overview]
Message-ID: <20070112042722.28794.74399.sendpatchset@localhost.localdomain> (raw)
In-Reply-To: <20070112042621.28794.6937.sendpatchset@localhost.localdomain>
[PATCH] ide: remove ide_drive_t.usage
This field is no longer used by the core IDE code so fix ide-{disk,floppy}
drivers to keep openers count in the driver specific objects and remove
it from ide-{cd,scsi,tape} drivers (it was write-only).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-cd.c | 15 ++++-----------
drivers/ide/ide-disk.c | 14 +++++++++-----
drivers/ide/ide-floppy.c | 18 +++++++++---------
drivers/ide/ide-tape.c | 8 --------
drivers/scsi/ide-scsi.c | 8 --------
include/linux/ide.h | 1 -
6 files changed, 22 insertions(+), 42 deletions(-)
Index: a/drivers/ide/ide-cd.c
===================================================================
--- a.orig/drivers/ide/ide-cd.c
+++ a/drivers/ide/ide-cd.c
@@ -3345,21 +3345,16 @@ static int idecd_open(struct inode * ino
{
struct gendisk *disk = inode->i_bdev->bd_disk;
struct cdrom_info *info;
- ide_drive_t *drive;
int rc = -ENOMEM;
if (!(info = ide_cd_get(disk)))
return -ENXIO;
- drive = info->drive;
-
- drive->usage++;
-
if (!info->buffer)
- info->buffer = kmalloc(SECTOR_BUFFER_SIZE,
- GFP_KERNEL|__GFP_REPEAT);
- if (!info->buffer || (rc = cdrom_open(&info->devinfo, inode, file)))
- drive->usage--;
+ info->buffer = kmalloc(SECTOR_BUFFER_SIZE, GFP_KERNEL|__GFP_REPEAT);
+
+ if (info->buffer)
+ rc = cdrom_open(&info->devinfo, inode, file);
if (rc < 0)
ide_cd_put(info);
@@ -3371,10 +3366,8 @@ static int idecd_release(struct inode *
{
struct gendisk *disk = inode->i_bdev->bd_disk;
struct cdrom_info *info = ide_cd_g(disk);
- ide_drive_t *drive = info->drive;
cdrom_release (&info->devinfo, file);
- drive->usage--;
ide_cd_put(info);
Index: a/drivers/ide/ide-disk.c
===================================================================
--- a.orig/drivers/ide/ide-disk.c
+++ a/drivers/ide/ide-disk.c
@@ -77,6 +77,7 @@ struct ide_disk_obj {
ide_driver_t *driver;
struct gendisk *disk;
struct kref kref;
+ unsigned int openers; /* protected by BKL for now */
};
static DEFINE_MUTEX(idedisk_ref_mutex);
@@ -1081,8 +1082,9 @@ static int idedisk_open(struct inode *in
drive = idkp->drive;
- drive->usage++;
- if (drive->removable && drive->usage == 1) {
+ idkp->openers++;
+
+ if (drive->removable && idkp->openers == 1) {
ide_task_t args;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_DOORLOCK;
@@ -1106,9 +1108,10 @@ static int idedisk_release(struct inode
struct ide_disk_obj *idkp = ide_disk_g(disk);
ide_drive_t *drive = idkp->drive;
- if (drive->usage == 1)
+ if (idkp->openers == 1)
ide_cacheflush_p(drive);
- if (drive->removable && drive->usage == 1) {
+
+ if (drive->removable && idkp->openers == 1) {
ide_task_t args;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_DOORUNLOCK;
@@ -1117,7 +1120,8 @@ static int idedisk_release(struct inode
if (drive->doorlocking && ide_raw_taskfile(drive, &args, NULL))
drive->doorlocking = 0;
}
- drive->usage--;
+
+ idkp->openers--;
ide_disk_put(idkp);
Index: a/drivers/ide/ide-floppy.c
===================================================================
--- a.orig/drivers/ide/ide-floppy.c
+++ a/drivers/ide/ide-floppy.c
@@ -279,6 +279,7 @@ typedef struct ide_floppy_obj {
ide_driver_t *driver;
struct gendisk *disk;
struct kref kref;
+ unsigned int openers; /* protected by BKL for now */
/* Current packet command */
idefloppy_pc_t *pc;
@@ -1949,9 +1950,9 @@ static int idefloppy_open(struct inode *
drive = floppy->drive;
- drive->usage++;
+ floppy->openers++;
- if (drive->usage == 1) {
+ if (floppy->openers == 1) {
clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
/* Just in case */
@@ -1969,13 +1970,11 @@ static int idefloppy_open(struct inode *
** capacity of the drive or begin the format - Sam
*/
) {
- drive->usage--;
ret = -EIO;
goto out_put_floppy;
}
if (floppy->wp && (filp->f_mode & 2)) {
- drive->usage--;
ret = -EROFS;
goto out_put_floppy;
}
@@ -1987,13 +1986,13 @@ static int idefloppy_open(struct inode *
}
check_disk_change(inode->i_bdev);
} else if (test_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags)) {
- drive->usage--;
ret = -EBUSY;
goto out_put_floppy;
}
return 0;
out_put_floppy:
+ floppy->openers--;
ide_floppy_put(floppy);
return ret;
}
@@ -2007,7 +2006,7 @@ static int idefloppy_release(struct inod
debug_log(KERN_INFO "Reached idefloppy_release\n");
- if (drive->usage == 1) {
+ if (floppy->openers == 1) {
/* IOMEGA Clik! drives do not support lock/unlock commands */
if (!test_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags)) {
idefloppy_create_prevent_cmd(&pc, 0);
@@ -2016,7 +2015,8 @@ static int idefloppy_release(struct inod
clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
}
- drive->usage--;
+
+ floppy->openers--;
ide_floppy_put(floppy);
@@ -2050,7 +2050,7 @@ static int idefloppy_ioctl(struct inode
prevent = 0;
/* fall through */
case CDROM_LOCKDOOR:
- if (drive->usage > 1)
+ if (floppy->openers > 1)
return -EBUSY;
/* The IOMEGA Clik! Drive doesn't support this command - no room for an eject mechanism */
@@ -2072,7 +2072,7 @@ static int idefloppy_ioctl(struct inode
if (!(file->f_mode & 2))
return -EPERM;
- if (drive->usage > 1) {
+ if (floppy->openers > 1) {
/* Don't format if someone is using the disk */
clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS,
Index: a/drivers/ide/ide-tape.c
===================================================================
--- a.orig/drivers/ide/ide-tape.c
+++ a/drivers/ide/ide-tape.c
@@ -4792,15 +4792,10 @@ static int idetape_open(struct inode *in
{
struct gendisk *disk = inode->i_bdev->bd_disk;
struct ide_tape_obj *tape;
- ide_drive_t *drive;
if (!(tape = ide_tape_get(disk)))
return -ENXIO;
- drive = tape->drive;
-
- drive->usage++;
-
return 0;
}
@@ -4808,9 +4803,6 @@ static int idetape_release(struct inode
{
struct gendisk *disk = inode->i_bdev->bd_disk;
struct ide_tape_obj *tape = ide_tape_g(disk);
- ide_drive_t *drive = tape->drive;
-
- drive->usage--;
ide_tape_put(tape);
Index: a/drivers/scsi/ide-scsi.c
===================================================================
--- a.orig/drivers/scsi/ide-scsi.c
+++ a/drivers/scsi/ide-scsi.c
@@ -801,15 +801,10 @@ static int idescsi_ide_open(struct inode
{
struct gendisk *disk = inode->i_bdev->bd_disk;
struct ide_scsi_obj *scsi;
- ide_drive_t *drive;
if (!(scsi = ide_scsi_get(disk)))
return -ENXIO;
- drive = scsi->drive;
-
- drive->usage++;
-
return 0;
}
@@ -817,9 +812,6 @@ static int idescsi_ide_release(struct in
{
struct gendisk *disk = inode->i_bdev->bd_disk;
struct ide_scsi_obj *scsi = ide_scsi_g(disk);
- ide_drive_t *drive = scsi->drive;
-
- drive->usage--;
ide_scsi_put(scsi);
Index: a/include/linux/ide.h
===================================================================
--- a.orig/include/linux/ide.h
+++ a/include/linux/ide.h
@@ -628,7 +628,6 @@ typedef struct ide_drive_s {
unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */
unsigned int cyl; /* "real" number of cyls */
unsigned int drive_data; /* use by tuneproc/selectproc */
- unsigned int usage; /* current "open()" count for drive */
unsigned int failures; /* current failure count */
unsigned int max_failures; /* maximum allowed failure count */
u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */
next prev parent reply other threads:[~2007-01-12 4:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-12 4:26 [PATCH 2/19] ide: add it8213 driver Bartlomiej Zolnierkiewicz
2007-01-12 4:26 ` [PATCH 3/19] ide: it8213 driver update Bartlomiej Zolnierkiewicz
2007-01-12 4:26 ` [PATCH 4/19] ia64: add pci_get_legacy_ide_irq() Bartlomiej Zolnierkiewicz
2007-01-12 4:26 ` [PATCH 5/19] ide: add missing __init tags to IDE PCI host drivers Bartlomiej Zolnierkiewicz
2007-01-12 4:26 ` [PATCH 6/19] pdc202xx_old: remove dead code Bartlomiej Zolnierkiewicz
2007-01-12 4:26 ` [PATCH 7/19] au1xxx-ide: " Bartlomiej Zolnierkiewicz
2007-01-12 4:26 ` [PATCH 8/19] ide: remove write-only ide_pio_data_t.blacklisted Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 9/19] ide: remove write-only ide_hwif_t.no_dsc flag Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 10/19] trm290: remove redundant CONFIG_BLK_DEV_IDEDMA Bartlomiej Zolnierkiewicz
2007-01-12 19:24 ` Sergei Shtylyov
2007-01-12 20:44 ` Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 11/19] ide: remove ide_pci_device_t tables with only one entry Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` Bartlomiej Zolnierkiewicz [this message]
2007-01-12 4:27 ` [PATCH 13/19] hpt366: remove redundant check from init_dma_hpt366() Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 14/19] cs5530: small cleanup Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 15/19] svwks: " Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 16/19] sis5513: sis5513_config_xfer_rate() cleanup Bartlomiej Zolnierkiewicz
2007-01-12 4:27 ` [PATCH 17/19] ide: unexport ide_set_xfer_rate() Bartlomiej Zolnierkiewicz
2007-01-12 4:28 ` [PATCH 18/19] ide: add ide_use_fast_pio() helper Bartlomiej Zolnierkiewicz
2007-01-12 10:08 ` Alan
2007-01-12 14:00 ` Bartlomiej Zolnierkiewicz
2007-01-12 14:30 ` Alan
2007-01-12 14:43 ` Bartlomiej Zolnierkiewicz
2007-01-12 15:16 ` Alan
2007-01-12 17:24 ` Bartlomiej Zolnierkiewicz
2007-01-12 4:28 ` [PATCH 19/19] ide: use PIO/MMIO operations directly where possible Bartlomiej Zolnierkiewicz
2007-01-12 10:06 ` Alan
2007-01-12 14:19 ` Bartlomiej Zolnierkiewicz
2007-06-21 17:16 ` Sergei Shtylyov
2007-06-21 18:19 ` Bartlomiej Zolnierkiewicz
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