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authorChristoph Hellwig <hch@lst.de>2008-11-05 14:58:42 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2008-12-04 04:22:57 -0500
commitfd4ce1acd0f8558033b1a6968001552bd7671e6d (patch)
tree7ce54f2b2c967fe2315917ffa2eb8eb7d47e7a2b /fs
parentebbefc011e56bd85b4745d01e5b8d7d05d95ed5d (diff)
downloadconfigs-fd4ce1acd0f8558033b1a6968001552bd7671e6d.tar.gz
[PATCH 1/2] kill FMODE_NDELAY_NOW
Update FMODE_NDELAY before each ioctl call so that we can kill the magic FMODE_NDELAY_NOW. It would be even better to do this directly in setfl(), but for that we'd need to have FMODE_NDELAY for all files, not just block special files. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/block_dev.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 7c727523bc5..99e0ae1a4c7 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1206,8 +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);
}