summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-04 21:45:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-04 21:45:44 -0800
commitbbeba4c35c252b2e961f09ce6ebe76b2cd5e7e3e (patch)
tree3fb4c0ae65f0c13be884280755cf65314a93ebce /fs
parent6df944c5f8194a1010f7166bcdd48667637f1af8 (diff)
parent2cbed8906fd1f3c6cc17cdf8aac1bfad2da7960c (diff)
downloadconfigs-bbeba4c35c252b2e961f09ce6ebe76b2cd5e7e3e.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev: [PATCH] fix bogus argument of blkdev_put() in pktcdvd [PATCH 2/2] documnt FMODE_ constants [PATCH 1/2] kill FMODE_NDELAY_NOW [PATCH] clean up blkdev_get a little bit [PATCH] Fix block dev compat ioctl handling [PATCH] kill obsolete temporary comment in swsusp_close()
Diffstat (limited to 'fs')
-rw-r--r--fs/block_dev.c21
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);
}