diff options
| author |   Jes Sorensen <jes@sgi.com> | 2006-03-23 03:00:26 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 07:38:11 -0800 |
| commit | b1c82b5c55851bf309f4019994610789f7042757 (patch) | |
| tree | e095ddbc53298b6ddc0324df4321a537014af0f3 /drivers/block | |
| parent | [PATCH] sem2mutex: drivers/block/pktcdvd.c (diff) | |
| download | linux-dev-b1c82b5c55851bf309f4019994610789f7042757.tar.xz linux-dev-b1c82b5c55851bf309f4019994610789f7042757.zip | |
[PATCH] sem2mutex: drivers/block/floppy.c
Convert from semaphore to mutex.
Untested as I have no access to a floppy drive at the moment.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/floppy.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index d23b54332d7e..fb2d0be7cdeb 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -179,6 +179,7 @@ static int print_unex = 1; #include <linux/devfs_fs_kernel.h> #include <linux/platform_device.h> #include <linux/buffer_head.h> /* for invalidate_buffers() */ +#include <linux/mutex.h> /* * PS/2 floppies have much slower step rates than regular floppies. @@ -413,7 +414,7 @@ static struct floppy_write_errors write_errors[N_DRIVE]; static struct timer_list motor_off_timer[N_DRIVE]; static struct gendisk *disks[N_DRIVE]; static struct block_device *opened_bdev[N_DRIVE]; -static DECLARE_MUTEX(open_lock); +static DEFINE_MUTEX(open_lock); static struct floppy_raw_cmd *raw_cmd, default_raw_cmd; /* @@ -3333,7 +3334,7 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g, if (type) { if (!capable(CAP_SYS_ADMIN)) return -EPERM; - down(&open_lock); + mutex_lock(&open_lock); LOCK_FDC(drive, 1); floppy_type[type] = *g; floppy_type[type].name = "user format"; @@ -3347,7 +3348,7 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g, continue; __invalidate_device(bdev); } - up(&open_lock); + mutex_unlock(&open_lock); } else { int oldStretch; LOCK_FDC(drive, 1); @@ -3674,7 +3675,7 @@ static int floppy_release(struct inode *inode, struct file *filp) { int drive = (long)inode->i_bdev->bd_disk->private_data; - down(&open_lock); + mutex_lock(&open_lock); if (UDRS->fd_ref < 0) UDRS->fd_ref = 0; else if (!UDRS->fd_ref--) { @@ -3684,7 +3685,7 @@ static int floppy_release(struct inode *inode, struct file *filp) if (!UDRS->fd_ref) opened_bdev[drive] = NULL; floppy_release_irq_and_dma(); - up(&open_lock); + mutex_unlock(&open_lock); return 0; } @@ -3702,7 +3703,7 @@ static int floppy_open(struct inode *inode, struct file *filp) char *tmp; filp->private_data = (void *)0; - down(&open_lock); + mutex_lock(&open_lock); old_dev = UDRS->fd_device; if (opened_bdev[drive] && opened_bdev[drive] != inode->i_bdev) goto out2; @@ -3785,7 +3786,7 @@ static int floppy_open(struct inode *inode, struct file *filp) if ((filp->f_mode & 2) && !(UTESTF(FD_DISK_WRITABLE))) goto out; } - up(&open_lock); + mutex_unlock(&open_lock); return 0; out: if (UDRS->fd_ref < 0) @@ -3796,7 +3797,7 @@ out: opened_bdev[drive] = NULL; floppy_release_irq_and_dma(); out2: - up(&open_lock); + mutex_unlock(&open_lock); return res; } |