[PATCH 10/28] increment sb writer count when nlink hits zero

Dave Hansen
2006-08-01T23:56:51Z

When a file is unlinked, there will soon be a write to the
filesystem. Note this, and disallow remounts to r/o during
the time when this write is pending.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
---

lxc-dave/fs/libfs.c | 1 +
1 files changed, 1 insertion(+)

diff -puN fs/libfs.c~C-inc-sb-writer-count-on-dec-nlink-to-zero fs/libfs.c
--- lxc/fs/libfs.c~C-inc-sb-writer-count-on-dec-nlink-to-zero 2006-08-01 16:35:20.000000000 -0700
+++ lxc-dave/fs/libfs.c 2006-08-01 16:35:21.000000000 -0700
@@ -273,6 +273,7 @@ out:
void __inode_set_awaiting_final_iput(struct inode *inode)
{
inode->i_state |= I_AWAITING_FINAL_IPUT;
+ atomic_inc(&inode->i_sb->s_mnt_writers);
}

int simple_unlink(struct inode *dir, struct dentry *dentry)
_