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path: root/drivers/block/ataflop.c
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Diffstat (limited to 'drivers/block/ataflop.c')
-rw-r--r--drivers/block/ataflop.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 0e30c6e5492a..96b629e1f0c9 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -68,6 +68,8 @@
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/wait.h>
#include <asm/atafd.h>
#include <asm/atafdreg.h>
@@ -301,7 +303,7 @@ module_param_array(UserSteprate, int, NULL, 0);
/* Synchronization of FDC access. */
static volatile int fdc_busy = 0;
static DECLARE_WAIT_QUEUE_HEAD(fdc_wait);
-static DECLARE_WAIT_QUEUE_HEAD(format_wait);
+static DECLARE_COMPLETION(format_wait);
static unsigned long changed_floppies = 0xff, fake_change = 0;
#define CHECK_CHANGE_DELAY HZ/2
@@ -608,7 +610,7 @@ static void fd_error( void )
if (IsFormatting) {
IsFormatting = 0;
FormatError = 1;
- wake_up( &format_wait );
+ complete(&format_wait);
return;
}
@@ -650,9 +652,8 @@ static int do_format(int drive, int type, struct atari_format_descr *desc)
DPRINT(("do_format( dr=%d tr=%d he=%d offs=%d )\n",
drive, desc->track, desc->head, desc->sect_offset ));
+ wait_event(fdc_wait, cmpxchg(&fdc_busy, 0, 1) == 0);
local_irq_save(flags);
- while( fdc_busy ) sleep_on( &fdc_wait );
- fdc_busy = 1;
stdma_lock(floppy_irq, NULL);
atari_turnon_irq( IRQ_MFP_FDC ); /* should be already, just to be sure */
local_irq_restore(flags);
@@ -706,7 +707,7 @@ static int do_format(int drive, int type, struct atari_format_descr *desc)
ReqSide = desc->head;
do_fd_action( drive );
- sleep_on( &format_wait );
+ wait_for_completion(&format_wait);
redo_fd_request();
return( FormatError ? -EIO : 0 );
@@ -1229,7 +1230,7 @@ static void fd_writetrack_done( int status )
goto err_end;
}
- wake_up( &format_wait );
+ complete(&format_wait);
return;
err_end:
@@ -1497,8 +1498,7 @@ repeat:
void do_fd_request(struct request_queue * q)
{
DPRINT(("do_fd_request for pid %d\n",current->pid));
- while( fdc_busy ) sleep_on( &fdc_wait );
- fdc_busy = 1;
+ wait_event(fdc_wait, cmpxchg(&fdc_busy, 0, 1) == 0);
stdma_lock(floppy_irq, NULL);
atari_disable_irq( IRQ_MFP_FDC );