diff options
| author | Paul Moore <pmoore@redhat.com> | 2014-06-17 17:30:23 -0400 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2014-06-17 17:30:23 -0400 |
| commit | 170b5910d9fbea79de1bb40df22eda5f98250c0c (patch) | |
| tree | ca9560e878d2842d45c6f99077d0d8b8f8b0f9ba /drivers/block/ataflop.c | |
| parent | 47dd0b76ace953bd2c0479076db0d3e3b9594003 (diff) | |
| parent | 1860e379875dfe7271c649058aeddffe5afd9d0d (diff) | |
Merge tag 'v3.15' into next
Linux 3.15
Diffstat (limited to 'drivers/block/ataflop.c')
| -rw-r--r-- | drivers/block/ataflop.c | 16 |
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 ); |