diff options
| author | Filipe Manana <fdmanana@suse.com> | 2014-10-10 10:45:12 +0100 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-11-20 17:14:28 -0800 |
| commit | e6eb43142a72ba356f9fcd0f0fe2169c3642b460 (patch) | |
| tree | 5a197067482910c26fc322223c9d0c5606dbeb70 | |
| parent | 728404dacfddb5364d7256d821a2ea482159cbe7 (diff) | |
Btrfs: report error after failure inlining extent in compressed write path
If cow_file_range_inline() failed, when called from compress_file_range(),
we were tagging the locked page for writeback, end its writeback and unlock it,
but not marking it with an error nor setting AS_EIO in inode's mapping flags.
This made it impossible for a caller of filemap_fdatawrite_range (writepages)
or filemap_fdatawait_range() to know that an error happened. And the return
value of compress_file_range() is useless because it's returned to a workqueue
task and not to the task calling filemap_fdatawrite_range (writepages).
This change applies on top of the previous patchset starting at the patch
titled:
"[1/5] Btrfs: set page and mapping error on compressed write failure"
Which changed extent_clear_unlock_delalloc() to use SetPageError and
mapping_set_error().
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/inode.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 95f06936bc6..cb5978a4a27 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -527,7 +527,10 @@ cont: if (ret <= 0) { unsigned long clear_flags = EXTENT_DELALLOC | EXTENT_DEFRAG; + unsigned long page_error_op; + clear_flags |= (ret < 0) ? EXTENT_DO_ACCOUNTING : 0; + page_error_op = ret < 0 ? PAGE_SET_ERROR : 0; /* * inline extent creation worked or returned error, @@ -538,6 +541,7 @@ cont: clear_flags, PAGE_UNLOCK | PAGE_CLEAR_DIRTY | PAGE_SET_WRITEBACK | + page_error_op | PAGE_END_WRITEBACK); goto free_pages_out; } |