xtensa process.c must #include <linux/fs.h>

[linux-2.6-omap-h63xx.git] / drivers / scsi / sg.c

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 81e3bc7b02a1bd29a5302a66aa49d5662a6fa5f3..85d38940a6c91e2b0d5b546bb0705bdd3ab37f8a 100644 (file)
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -41,7 +41,6 @@ static int sg_version_num = 30534;    /* 2 digits for each component */
 #include <linux/fcntl.h>
 #include <linux/init.h>
 #include <linux/poll.h>
-#include <linux/smp_lock.h>
 #include <linux/moduleparam.h>
 #include <linux/cdev.h>
 #include <linux/seq_file.h>
@@ -917,6 +916,8 @@ sg_ioctl(struct inode *inode, struct file *filp,
                        return result;
                 if (val < 0)
                         return -EINVAL;
+               val = min_t(int, val,
+                               sdp->device->request_queue->max_sectors * 512);
                if (val != sfp->reserve.bufflen) {
                        if (sg_res_in_use(sfp) || sfp->mmap_called)
                                return -EBUSY;
@@ -925,7 +926,8 @@ sg_ioctl(struct inode *inode, struct file *filp,
                }
                return 0;
        case SG_GET_RESERVED_SIZE:
-               val = (int) sfp->reserve.bufflen;
+               val = min_t(int, sfp->reserve.bufflen,
+                               sdp->device->request_queue->max_sectors * 512);
                return put_user(val, ip);
        case SG_SET_COMMAND_Q:
                result = get_user(val, ip);
@@ -1061,6 +1063,9 @@ sg_ioctl(struct inode *inode, struct file *filp,
                if (sdp->detached)
                        return -ENODEV;
                return scsi_ioctl(sdp->device, cmd_in, p);
+       case BLKSECTGET:
+               return put_user(sdp->device->request_queue->max_sectors * 512,
+                               ip);
        default:
                if (read_only)
                        return -EPERM;  /* don't know so take safe approach */
@@ -1837,7 +1842,7 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
        int blk_size = buff_size;
        struct page *p = NULL;
 
-       if ((blk_size < 0) || (!sfp))
+       if (blk_size < 0)
                return -EFAULT;
        if (0 == blk_size)
                ++blk_size;     /* don't know why */
@@ -2339,6 +2344,7 @@ sg_add_sfp(Sg_device * sdp, int dev)
 {
        Sg_fd *sfp;
        unsigned long iflags;
+       int bufflen;
 
        sfp = kzalloc(sizeof(*sfp), GFP_ATOMIC | __GFP_NOWARN);
        if (!sfp)
@@ -2369,7 +2375,9 @@ sg_add_sfp(Sg_device * sdp, int dev)
        if (unlikely(sg_big_buff != def_reserved_size))
                sg_big_buff = def_reserved_size;
 
-       sg_build_reserve(sfp, sg_big_buff);
+       bufflen = min_t(int, sg_big_buff,
+                       sdp->device->request_queue->max_sectors * 512);
+       sg_build_reserve(sfp, bufflen);
        SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp:   bufflen=%d, k_use_sg=%d\n",
                           sfp->reserve.bufflen, sfp->reserve.k_use_sg));
        return sfp;