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[PATCH] eliminate use of ->f_flags in block methods

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store needed information in f_mode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2007-08-26 19:50:05 -04:00
parent aeb5d72706
commit 86d434dede
9 changed files with 26 additions and 22 deletions
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6
drivers/block/ataflop.c
View File

@ -1813,17 +1813,17 @@ static int floppy_open( struct inode *inode, struct file *filp )
if (p->ref && p->type != type)
return -EBUSY;
if (p->ref == -1 || (p->ref && filp->f_flags & O_EXCL))
if (p->ref == -1 || (p->ref && filp->f_mode & FMODE_EXCL))
return -EBUSY;
if (filp->f_flags & O_EXCL)
if (filp->f_mode & FMODE_EXCL)
p->ref = -1;
else
p->ref++;
p->type = type;
if (filp->f_flags & O_NDELAY)
if (filp->f_mode & FMODE_NDELAY)
return 0;
if (filp->f_mode & (FMODE_READ|FMODE_WRITE)) {

15
drivers/block/floppy.c
View File

@ -3453,7 +3453,7 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long param)
{
#define FD_IOCTL_ALLOWED ((filp) && (filp)->private_data)
#define FD_IOCTL_ALLOWED ((filp) && (filp)->f_mode & (FMODE_WRITE|FMODE_WRITE_IOCTL))
#define OUT(c,x) case c: outparam = (const char *) (x); break
#define IN(c,x,tag) case c: *(x) = inparam. tag ; return 0
@ -3690,7 +3690,6 @@ static int floppy_open(struct inode *inode, struct file *filp)
int res = -EBUSY;
char *tmp;
filp->private_data = (void *)0;
mutex_lock(&open_lock);
old_dev = UDRS->fd_device;
if (opened_bdev[drive] && opened_bdev[drive] != inode->i_bdev)
@ -3701,10 +3700,10 @@ static int floppy_open(struct inode *inode, struct file *filp)
USETF(FD_VERIFY);
}
if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (filp->f_flags & O_EXCL)))
if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (filp->f_mode & FMODE_EXCL)))
goto out2;
if (filp->f_flags & O_EXCL)
if (filp->f_mode & FMODE_EXCL)
UDRS->fd_ref = -1;
else
UDRS->fd_ref++;
@ -3751,16 +3750,10 @@ static int floppy_open(struct inode *inode, struct file *filp)
buffer_track = -1;
}
/* Allow ioctls if we have write-permissions even if read-only open.
* Needed so that programs such as fdrawcmd still can work on write
* protected disks */
if ((filp->f_mode & FMODE_WRITE) || !file_permission(filp, MAY_WRITE))
filp->private_data = (void *)8;
if (UFDCS->rawcmd == 1)
UFDCS->rawcmd = 2;
if (!(filp->f_flags & O_NDELAY)) {
if (!(filp->f_mode & FMODE_NDELAY)) {
if (filp->f_mode & (FMODE_READ|FMODE_WRITE)) {
UDRS->last_checked = 0;
check_disk_change(inode->i_bdev);

6
drivers/block/swim3.c
View File

@ -904,10 +904,10 @@ static int floppy_open(struct inode *inode, struct file *filp)
swim3_action(fs, SETMFM);
swim3_select(fs, RELAX);
} else if (fs->ref_count == -1 || filp->f_flags & O_EXCL)
} else if (fs->ref_count == -1 || filp->f_mode & FMODE_EXCL)
return -EBUSY;
if (err == 0 && (filp->f_flags & O_NDELAY) == 0
if (err == 0 && (filp->f_mode & FMODE_NDELAY) == 0
&& (filp->f_mode & (FMODE_READ|FMODE_WRITE))) {
check_disk_change(inode->i_bdev);
if (fs->ejected)
@ -930,7 +930,7 @@ static int floppy_open(struct inode *inode, struct file *filp)
return err;
}
if (filp->f_flags & O_EXCL)
if (filp->f_mode & FMODE_EXCL)
fs->ref_count = -1;
else
++fs->ref_count;

2
drivers/block/ub.c
View File

@ -1691,7 +1691,7 @@ static int ub_bd_open(struct inode *inode, struct file *filp)
* under some pretty murky conditions (a failure of READ CAPACITY).
* We may need it one day.
*/
if (lun->removable && lun->changed && !(filp->f_flags & O_NDELAY)) {
if (lun->removable && lun->changed && !(filp->f_mode & FMODE_NDELAY)) {
rc = -ENOMEDIUM;
goto err_open;
}

4
drivers/cdrom/cdrom.c
View File

@ -982,7 +982,7 @@ int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
/* if this was a O_NONBLOCK open and we should honor the flags,
* do a quick open without drive/disc integrity checks. */
cdi->use_count++;
if ((fp->f_flags & O_NONBLOCK) && (cdi->options & CDO_USE_FFLAGS)) {
if ((fp->f_mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) {
ret = cdi->ops->open(cdi, 1);
} else {
ret = open_for_data(cdi);
@ -1205,7 +1205,7 @@ int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
}
opened_for_data = !(cdi->options & CDO_USE_FFLAGS) ||
!(fp && fp->f_flags & O_NONBLOCK);
!(fp && fp->f_mode & FMODE_NDELAY);
/*
* flush cache on last write release

2
drivers/ide/ide-gd.c
View File

@ -197,7 +197,7 @@ static int ide_gd_open(struct inode *inode, struct file *filp)
* unreadable disk, so that we can get the format capacity
* of the drive or begin the format - Sam
*/
if (ret && (filp->f_flags & O_NDELAY) == 0) {
if (ret && (filp->f_mode & FMODE_NDELAY) == 0) {
ret = -EIO;
goto out_put_idkp;
}

2
drivers/scsi/sd.c
View File

@ -640,7 +640,7 @@ static int sd_open(struct inode *inode, struct file *filp)
*/
retval = -ENOMEDIUM;
if (sdev->removable && !sdkp->media_present &&
!(filp->f_flags & O_NDELAY))
!(filp->f_mode & FMODE_NDELAY))
goto error_out;
/*

7
fs/block_dev.c
View File

@ -1007,6 +1007,13 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
return ret;
}
if (file->f_flags & O_NDELAY)
file->f_mode |= FMODE_NDELAY;
if (file->f_flags & O_EXCL)
file->f_mode |= FMODE_EXCL;
if ((file->f_flags & O_ACCMODE) == 3)
file->f_mode |= FMODE_WRITE_IOCTL;
ret = -ENXIO;
file->f_mapping = bdev->bd_inode->i_mapping;

4
include/linux/fs.h
View File

@ -76,6 +76,10 @@ extern int dir_notify_enable;
behavior for cross-node execution/opening_for_writing of files */
#define FMODE_EXEC ((__force fmode_t)16)
#define FMODE_NDELAY ((__force fmode_t)32)
#define FMODE_EXCL ((__force fmode_t)64)
#define FMODE_WRITE_IOCTL ((__force fmode_t)128)
#define RW_MASK 1
#define RWA_MASK 2
#define READ 0