From: Arnd Bergmann Date: Mon, 26 Apr 2010 22:24:01 +0000 (+0200) Subject: scsi: Push down BKL into ioctl functions X-Git-Tag: v2.6.35-rc1~411^2~10 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f4927c45beda9a70e5c3bda0bd9f12b4f713c00b;p=platform%2Fkernel%2Flinux-stable.git scsi: Push down BKL into ioctl functions Push down the bkl into ioctl functions on the scsi layer. [jkacur: Forward declaration missing ';'. Conflicting declaraction in megaraid.h changed Fixed missing inodes declarations] Signed-off-by: Arnd Bergmann Signed-off-by: John Kacur Signed-off-by: Frederic Weisbecker --- diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index e9788f5..4f74850 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -123,7 +123,7 @@ static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_H static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id); static char *twa_aen_severity_lookup(unsigned char severity_code); static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id); -static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); +static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg); static int twa_chrdev_open(struct inode *inode, struct file *file); static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host); static void twa_free_request_id(TW_Device_Extension *tw_dev,int request_id); @@ -218,7 +218,7 @@ static struct device_attribute *twa_host_attrs[] = { /* File operations struct for character device */ static const struct file_operations twa_fops = { .owner = THIS_MODULE, - .ioctl = twa_chrdev_ioctl, + .unlocked_ioctl = twa_chrdev_ioctl, .open = twa_chrdev_open, .release = NULL }; @@ -635,8 +635,9 @@ out: } /* End twa_check_srl() */ /* This function handles ioctl for the character device */ -static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { + struct inode *inode = file->f_path.dentry->d_inode; long timeout; unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0; dma_addr_t dma_handle; @@ -655,6 +656,8 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int int retval = TW_IOCTL_ERROR_OS_EFAULT; void __user *argp = (void __user *)arg; + lock_kernel(); + /* Only let one of these through at a time */ if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) { retval = TW_IOCTL_ERROR_OS_EINTR; @@ -874,6 +877,7 @@ out3: out2: mutex_unlock(&tw_dev->ioctl_lock); out: + unlock_kernel(); return retval; } /* End twa_chrdev_ioctl() */ diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index 54c5ffb..8af3809 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -750,19 +750,22 @@ static void twl_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_comm /* This function handles ioctl for the character device This interface is used by smartmontools open source software */ -static int twl_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long twl_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { long timeout; unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0; dma_addr_t dma_handle; int request_id = 0; TW_Ioctl_Driver_Command driver_command; + struct inode *inode = file->f_dentry->d_inode; TW_Ioctl_Buf_Apache *tw_ioctl; TW_Command_Full *full_command_packet; TW_Device_Extension *tw_dev = twl_device_extension_list[iminor(inode)]; int retval = -EFAULT; void __user *argp = (void __user *)arg; + lock_kernel(); + /* Only let one of these through at a time */ if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) { retval = -EINTR; @@ -858,6 +861,7 @@ out3: out2: mutex_unlock(&tw_dev->ioctl_lock); out: + unlock_kernel(); return retval; } /* End twl_chrdev_ioctl() */ @@ -884,7 +888,7 @@ out: /* File operations struct for character device */ static const struct file_operations twl_fops = { .owner = THIS_MODULE, - .ioctl = twl_chrdev_ioctl, + .unlocked_ioctl = twl_chrdev_ioctl, .open = twl_chrdev_open, .release = NULL }; diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 5faf903..608f3b2 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -880,7 +880,7 @@ static int tw_allocate_memory(TW_Device_Extension *tw_dev, int size, int which) } /* End tw_allocate_memory() */ /* This function handles ioctl for the character device */ -static int tw_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int request_id; dma_addr_t dma_handle; @@ -888,6 +888,7 @@ static int tw_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int unsigned long flags; unsigned int data_buffer_length = 0; unsigned long data_buffer_length_adjusted = 0; + struct inode *inode = file->f_dentry->d_inode; unsigned long *cpu_addr; long timeout; TW_New_Ioctl *tw_ioctl; @@ -898,9 +899,12 @@ static int tw_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl()\n"); + lock_kernel(); /* Only let one of these through at a time */ - if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) + if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) { + unlock_kernel(); return -EINTR; + } /* First copy down the buffer length */ if (copy_from_user(&data_buffer_length, argp, sizeof(unsigned int))) @@ -1029,6 +1033,7 @@ out2: dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, cpu_addr, dma_handle); out: mutex_unlock(&tw_dev->ioctl_lock); + unlock_kernel(); return retval; } /* End tw_chrdev_ioctl() */ @@ -1051,7 +1056,7 @@ static int tw_chrdev_open(struct inode *inode, struct file *file) /* File operations struct for character device */ static const struct file_operations tw_fops = { .owner = THIS_MODULE, - .ioctl = tw_chrdev_ioctl, + .unlocked_ioctl = tw_chrdev_ioctl, .open = tw_chrdev_open, .release = NULL }; diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index e9373a2..33898b61 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -705,12 +705,17 @@ static int aac_cfg_open(struct inode *inode, struct file *file) * Bugs: Needs to handle hot plugging */ -static int aac_cfg_ioctl(struct inode *inode, struct file *file, +static long aac_cfg_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { + int ret; if (!capable(CAP_SYS_RAWIO)) return -EPERM; - return aac_do_ioctl(file->private_data, cmd, (void __user *)arg); + lock_kernel(); + ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg); + unlock_kernel(); + + return ret; } #ifdef CONFIG_COMPAT @@ -1029,7 +1034,7 @@ ssize_t aac_get_serial_number(struct device *device, char *buf) static const struct file_operations aac_cfg_fops = { .owner = THIS_MODULE, - .ioctl = aac_cfg_ioctl, + .unlocked_ioctl = aac_cfg_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = aac_compat_cfg_ioctl, #endif diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 0435d04..b0c576f 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -114,12 +114,13 @@ static int hba_count = 0; static struct class *adpt_sysfs_class; +static long adpt_unlocked_ioctl(struct file *, unsigned int, unsigned long); #ifdef CONFIG_COMPAT static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long); #endif static const struct file_operations adpt_fops = { - .ioctl = adpt_ioctl, + .unlocked_ioctl = adpt_unlocked_ioctl, .open = adpt_open, .release = adpt_close, #ifdef CONFIG_COMPAT @@ -2069,8 +2070,7 @@ static int adpt_system_info(void __user *buffer) return 0; } -static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, - ulong arg) +static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) { int minor; int error = 0; @@ -2153,6 +2153,20 @@ static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, return error; } +static long adpt_unlocked_ioctl(struct file *file, uint cmd, ulong arg) +{ + struct inode *inode; + long ret; + + inode = file->f_dentry->d_inode; + + lock_kernel(); + ret = adpt_ioctl(inode, file, cmd, arg); + unlock_kernel(); + + return ret; +} + #ifdef CONFIG_COMPAT static long compat_adpt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 35a4b30..d3f335d 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -180,8 +180,8 @@ static const char *gdth_ctr_name(gdth_ha_str *ha); static int gdth_open(struct inode *inode, struct file *filep); static int gdth_close(struct inode *inode, struct file *filep); -static int gdth_ioctl(struct inode *inode, struct file *filep, - unsigned int cmd, unsigned long arg); +static long gdth_unlocked_ioctl(struct file *filep, unsigned int cmd, + unsigned long arg); static void gdth_flush(gdth_ha_str *ha); static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *)); @@ -369,7 +369,7 @@ MODULE_LICENSE("GPL"); /* ioctl interface */ static const struct file_operations gdth_fops = { - .ioctl = gdth_ioctl, + .unlocked_ioctl = gdth_unlocked_ioctl, .open = gdth_open, .release = gdth_close, }; @@ -4462,8 +4462,7 @@ free_fail: return rc; } -static int gdth_ioctl(struct inode *inode, struct file *filep, - unsigned int cmd, unsigned long arg) +static int gdth_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) { gdth_ha_str *ha; Scsi_Cmnd *scp; @@ -4611,6 +4610,17 @@ static int gdth_ioctl(struct inode *inode, struct file *filep, return 0; } +static long gdth_unlocked_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + int ret; + + lock_kernel(); + ret = gdth_ioctl(file, cmd, arg); + unlock_kernel(); + + return ret; +} /* flush routine */ static void gdth_flush(gdth_ha_str *ha) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 4bf7edc..0b6e322 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -91,12 +91,15 @@ static struct proc_dir_entry *mega_proc_dir_entry; /* For controller re-ordering */ static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; +static long +megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); + /* * The File Operations structure for the serial/ioctl interface of the driver */ static const struct file_operations megadev_fops = { .owner = THIS_MODULE, - .ioctl = megadev_ioctl, + .unlocked_ioctl = megadev_unlocked_ioctl, .open = megadev_open, }; @@ -3302,8 +3305,7 @@ megadev_open (struct inode *inode, struct file *filep) * controller. */ static int -megadev_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, - unsigned long arg) +megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) { adapter_t *adapter; nitioctl_t uioc; @@ -3694,6 +3696,18 @@ freemem_and_return: return 0; } +static long +megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) +{ + int ret; + + lock_kernel(); + ret = megadev_ioctl(filep, cmd, arg); + unlock_kernel(); + + return ret; +} + /** * mega_m_to_n() * @arg - user address diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h index d310f49..2b4a048 100644 --- a/drivers/scsi/megaraid.h +++ b/drivers/scsi/megaraid.h @@ -1013,8 +1013,7 @@ static void mega_8_to_40ld (mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, mega_product_info *); static int megadev_open (struct inode *, struct file *); -static int megadev_ioctl (struct inode *, struct file *, unsigned int, - unsigned long); +static int megadev_ioctl (struct file *, unsigned int, unsigned long); static int mega_m_to_n(void __user *, nitioctl_t *); static int mega_n_to_m(void __user *, megacmd_t *); diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c index 36e0b7d..41f82f7 100644 --- a/drivers/scsi/megaraid/megaraid_mm.c +++ b/drivers/scsi/megaraid/megaraid_mm.c @@ -22,7 +22,7 @@ // Entry points for char node driver static int mraid_mm_open(struct inode *, struct file *); -static int mraid_mm_ioctl(struct inode *, struct file *, uint, unsigned long); +static long mraid_mm_unlocked_ioctl(struct file *, uint, unsigned long); // routines to convert to and from the old the format @@ -70,7 +70,7 @@ static wait_queue_head_t wait_q; static const struct file_operations lsi_fops = { .open = mraid_mm_open, - .ioctl = mraid_mm_ioctl, + .unlocked_ioctl = mraid_mm_unlocked_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = mraid_mm_compat_ioctl, #endif @@ -110,8 +110,7 @@ mraid_mm_open(struct inode *inode, struct file *filep) * @arg : user ioctl packet */ static int -mraid_mm_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, - unsigned long arg) +mraid_mm_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) { uioc_t *kioc; char signature[EXT_IOCTL_SIGN_SZ] = {0}; @@ -218,6 +217,19 @@ mraid_mm_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, return rval; } +static long +mraid_mm_unlocked_ioctl(struct file *filep, unsigned int cmd, + unsigned long arg) +{ + int err; + + /* inconsistant: mraid_mm_compat_ioctl doesn't take the BKL */ + lock_kernel(); + err = mraid_mm_ioctl(filep, cmd, arg); + unlock_kernel(); + + return err; +} /** * mraid_mm_get_adapter - Returns corresponding adapters for the mimd packet @@ -1225,7 +1237,7 @@ mraid_mm_compat_ioctl(struct file *filep, unsigned int cmd, { int err; - err = mraid_mm_ioctl(NULL, filep, cmd, arg); + err = mraid_mm_ioctl(filep, cmd, arg); return err; } diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index b219118..8dbf1c3 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -4932,7 +4932,7 @@ static int os_scsi_tape_close(struct inode * inode, struct file * filp) /* The ioctl command */ -static int osst_ioctl(struct inode * inode,struct file * file, +static long osst_ioctl(struct file * file, unsigned int cmd_in, unsigned long arg) { int i, cmd_nr, cmd_type, blk, retval = 0; @@ -4943,8 +4943,11 @@ static int osst_ioctl(struct inode * inode,struct file * file, char * name = tape_name(STp); void __user * p = (void __user *)arg; - if (mutex_lock_interruptible(&STp->lock)) + lock_kernel(); + if (mutex_lock_interruptible(&STp->lock)) { + unlock_kernel(); return -ERESTARTSYS; + } #if DEBUG if (debugging && !STp->in_use) { @@ -5256,12 +5259,15 @@ static int osst_ioctl(struct inode * inode,struct file * file, mutex_unlock(&STp->lock); - return scsi_ioctl(STp->device, cmd_in, p); + retval = scsi_ioctl(STp->device, cmd_in, p); + unlock_kernel(); + return retval; out: if (SRpnt) osst_release_request(SRpnt); mutex_unlock(&STp->lock); + unlock_kernel(); return retval; } @@ -5613,7 +5619,7 @@ static const struct file_operations osst_fops = { .owner = THIS_MODULE, .read = osst_read, .write = osst_write, - .ioctl = osst_ioctl, + .unlocked_ioctl = osst_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = osst_compat_ioctl, #endif diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index dee1c96..ef752b2 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -758,8 +758,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp, } static int -sg_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd_in, unsigned long arg) +sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) { void __user *p = (void __user *)arg; int __user *ip = p; @@ -1078,6 +1077,18 @@ sg_ioctl(struct inode *inode, struct file *filp, } } +static long +sg_unlocked_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) +{ + int ret; + + lock_kernel(); + ret = sg_ioctl(filp, cmd_in, arg); + unlock_kernel(); + + return ret; +} + #ifdef CONFIG_COMPAT static long sg_compat_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) { @@ -1322,7 +1333,7 @@ static const struct file_operations sg_fops = { .read = sg_read, .write = sg_write, .poll = sg_poll, - .ioctl = sg_ioctl, + .unlocked_ioctl = sg_unlocked_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = sg_compat_ioctl, #endif