lkml.org 
[lkml]   [2014]   [Jul]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3.11 008/128] Btrfs: mark mapping with error flag to report errors to userspace
Date
3.11.10.14 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Liu Bo <bo.li.liu@oracle.com>

commit 5dca6eea91653e9949ce6eb9e9acab6277e2f2c4 upstream.

According to commit 865ffef3797da2cac85b3354b5b6050dc9660978
(fs: fix fsync() error reporting),
it's not stable to just check error pages because pages can be
truncated or invalidated, we should also mark mapping with error
flag so that a later fsync can catch the error.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
Cc: David Sterba <dsterba@suse.cz>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
fs/btrfs/extent_io.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 6c80e0801e58..479d5aecd708 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2401,6 +2401,8 @@ int end_extent_writepage(struct page *page, int err, u64 start, u64 end)
if (!uptodate) {
ClearPageUptodate(page);
SetPageError(page);
+ ret = ret < 0 ? ret : -EIO;
+ mapping_set_error(page->mapping, ret);
}
return 0;
}
--
1.9.1


\
 
 \ /
  Last update: 2014-07-24 13:41    [W:0.572 / U:3.240 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site