diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-12-12 13:48:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-12 13:48:57 +0100 |
| commit | 45ab6b0c76d0e4cce5bd608ccf97b0f6b20f18df (patch) | |
| tree | 4d51c73533c386aee16fde1e74b5e3bc22eedc53 /fs/block_dev.c | |
| parent | 81444a799550214f549caf579cf65a0ca55e70b7 (diff) | |
| parent | d65bd5ecb2bd166cea4952a59b7e16cc3ad6ef6c (diff) | |
Merge branch 'sched/core' into cpus4096
Conflicts:
include/linux/ftrace.h
kernel/sched.c
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index db831efbdbb..99e0ae1a4c7 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1135,12 +1135,15 @@ static int blkdev_open(struct inode * inode, struct file * filp) if (res) return res; - if (!(filp->f_mode & FMODE_EXCL)) - return 0; + if (filp->f_mode & FMODE_EXCL) { + res = bd_claim(bdev, filp); + if (res) + goto out_blkdev_put; + } - if (!(res = bd_claim(bdev, filp))) - return 0; + return 0; + out_blkdev_put: blkdev_put(bdev, filp->f_mode); return res; } @@ -1203,8 +1206,16 @@ static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg) { struct block_device *bdev = I_BDEV(file->f_mapping->host); fmode_t mode = file->f_mode; + + /* + * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have + * to updated it before every ioctl. + */ if (file->f_flags & O_NDELAY) - mode |= FMODE_NDELAY_NOW; + mode |= FMODE_NDELAY; + else + mode &= ~FMODE_NDELAY; + return blkdev_ioctl(bdev, mode, cmd, arg); } |