From: Erez Zadok <ezk@cs.sunysb.edu>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
viro@ftp.linux.org.uk, hch@infradead.org,
Erez Zadok <ezk@cs.sunysb.edu>
Subject: [PATCH 07/12] Unionfs: set append offset correctly for copied-up files
Date: Fri, 25 Apr 2008 18:19:03 -0400 [thread overview]
Message-ID: <12091619511099-git-send-email-ezk@cs.sunysb.edu> (raw)
In-Reply-To: <12091619483888-git-send-email-ezk@cs.sunysb.edu>
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
next prev parent reply other threads:[~2008-04-25 22:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-25 22:18 [GIT PULL -mm] 00/12 Unionfs updates/fixes/cleanups Erez Zadok
2008-04-25 22:18 ` [PATCH 01/12] Unionfs: minor code cleanups Erez Zadok
2008-04-25 22:18 ` [PATCH 02/12] Unionfs: prevent races in unionfs_fault Erez Zadok
2008-04-25 22:18 ` [PATCH 03/12] Unionfs: copy lower times in fsync/fasync only when needed Erez Zadok
2008-04-25 22:19 ` [PATCH 04/12] Unionfs: lock inode around calls to notify_change() Erez Zadok
2008-04-25 22:19 ` [PATCH 05/12] Unionfs: stop as soon as first writeable branch is found Erez Zadok
2008-04-25 22:19 ` [PATCH 06/12] Unionfs: don't dereference dentry without lower branches in d_release Erez Zadok
2008-04-25 22:19 ` Erez Zadok [this message]
2008-04-25 22:19 ` [PATCH 08/12] Unionfs: copyup only if file is being written to Erez Zadok
2008-04-25 22:19 ` [PATCH 09/12] Unionfs: reorganize file_revalidate for un/locking callers Erez Zadok
2008-04-25 22:19 ` [PATCH 10/12] Unionfs: maintain one-open-file invariant for non-directories Erez Zadok
2008-04-25 22:19 ` [PATCH 11/12] Unionfs: set lower file to NULL in file_release Erez Zadok
2008-04-25 22:19 ` [PATCH 12/12] Unionfs: lock parent dentry branch config in write Erez Zadok
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