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Subject[PATCH 07/12] Unionfs: set append offset correctly for copied-up files
Date
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---
fs/unionfs/commonfops.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/fs/unionfs/commonfops.c b/fs/unionfs/commonfops.c
index 0fc7963..83034c2 100644
--- a/fs/unionfs/commonfops.c
+++ b/fs/unionfs/commonfops.c
@@ -258,9 +258,13 @@ static int do_delayed_copyup(struct file *file)
else
err = copyup_deleted_file(file, dentry, bstart,
bindex);
-
- if (!err)
+ /* if succeeded, set lower open-file flags and break */
+ if (!err) {
+ struct file *lower_file;
+ lower_file = unionfs_lower_file_idx(file, bindex);
+ lower_file->f_flags = file->f_flags;
break;
+ }
}
if (err || (bstart <= fbstart(file)))
goto out;
@@ -491,6 +495,10 @@ static int __open_file(struct inode *inode, struct file *file)
}
return err;
} else {
+ /*
+ * turn off writeable flags, to force delayed copyup
+ * by caller.
+ */
lower_flags &= ~(OPEN_WRITE_FLAGS);
}
}
--
1.5.2.2


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