From: Greg Kroah-Hartman Date: Mon, 9 Apr 2007 15:52:31 +0000 (-0400) Subject: IDE: remove rwsem use from ide-proc core X-Git-Tag: v2.6.22-rc1~1119^2~20 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c401110186cc0ce2f0e4a03695af115e6c177d95;p=linux-2.6 IDE: remove rwsem use from ide-proc core The subsystem rwsem is not used by the driver core at all, so the use of it in the ide-proc code of it doesn't make any sense. Perhaps a local lock might be needed, but I do not really think so. Cc: Bartlomiej Zolnierkiewicz Cc: linux ide Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index afb71c66b6..a9e0b30fb1 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -310,14 +310,12 @@ static int proc_ide_read_driver ide_driver_t *ide_drv; int len; - down_read(&dev->bus->subsys.rwsem); if (dev->driver) { ide_drv = container_of(dev->driver, ide_driver_t, gen_driver); len = sprintf(page, "%s version %s\n", dev->driver->name, ide_drv->version); } else len = sprintf(page, "ide-default version 0.9.newide\n"); - up_read(&dev->bus->subsys.rwsem); PROC_IDE_READ_RETURN(page,start,off,count,eof,len); } @@ -327,7 +325,6 @@ static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) int ret = 1; int err; - down_write(&dev->bus->subsys.rwsem); device_release_driver(dev); /* FIXME: device can still be in use by previous driver */ strlcpy(drive->driver_req, driver, sizeof(drive->driver_req)); @@ -345,7 +342,6 @@ static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) } if (dev->driver && !strcmp(dev->driver->name, driver)) ret = 0; - up_write(&dev->bus->subsys.rwsem); return ret; }