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| author | Wim Van Sebroeck <wim@iguana.be> | 2007-05-11 19:03:13 +0000 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2007-05-11 19:03:13 +0000 |
| commit | 5c34202b8bf942da411b6599668a76b07449bbfd (patch) | |
| tree | 5719c361321eaddc8e4f1b0c8a7994f0e9a6fdd3 /drivers/scsi/sg.c | |
| parent | 0d4804b31f91cfbcff6d62af0bc09a893a1c8ae0 (diff) | |
| parent | 1f8a6b658a943b4f04a1fc7b3a420360202c86cd (diff) | |
| download | op-kernel-dev-5c34202b8bf942da411b6599668a76b07449bbfd.zip op-kernel-dev-5c34202b8bf942da411b6599668a76b07449bbfd.tar.gz | |
Merge /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/scsi/sg.c')
| -rw-r--r-- | drivers/scsi/sg.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 81e3bc7..0c691a6 100644 --- 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 */ @@ -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; |
