Messages in this thread | | | Date | Wed, 18 Oct 2006 10:25:12 -0400 | From | Chris Mason <> | Subject | Re: [patch 6/6] mm: fix pagecache write deadlocks |
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> Index: linux-2.6/fs/buffer.c > =================================================================== > --- linux-2.6.orig/fs/buffer.c > +++ linux-2.6/fs/buffer.c > @@ -1856,6 +1856,9 @@ static int __block_commit_write(struct i > unsigned blocksize; > struct buffer_head *bh, *head; > > + if (from == to) > + return 0; > + > blocksize = 1 << inode->i_blkbits;
reiserfs v3 copied the __block_commit_write logic for checking for a partially updated page, so reiserfs_commit_page will have to be updated to handle from==to. Right now it will set the page up to date.
I also used a prepare/commit pare where from==to as a way to trigger tail conversions in the lilo ioctl. I'll both for you and make a patch.
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