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| author | Steven Whitehouse <swhiteho@redhat.com> | 2008-01-17 15:12:03 +0000 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2008-01-25 08:20:15 +0000 |
| commit | b7fe2e391ee7b711d6dfd6a694d60c4f21113cbb (patch) | |
| tree | 4a5d141ffd4ae77dc6ce1a47b0bb8ce9d6d7c685 | |
| parent | 3e5cd0877e6d2f059dc36b8206cb7e93938151db (diff) | |
| download | op-kernel-dev-b7fe2e391ee7b711d6dfd6a694d60c4f21113cbb.zip op-kernel-dev-b7fe2e391ee7b711d6dfd6a694d60c4f21113cbb.tar.gz | |
[GFS2] Fix page_mkwrite truncation race path
There was a bug in the truncation/invalidation race path for
->page_mkwrite for gfs2. It ought to return 0 so that the effect is the
same as if the page was truncated at any of the other points at which
the page_lock is dropped. This will result in the restart of the whole
page fault path. If it was due to a real truncation (as opposed to an
invalidate because we let a glock go) then the ->fault path will pick
that up when it gets called again.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| -rw-r--r-- | fs/gfs2/ops_file.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c index d7f4726..f4842f2 100644 --- a/fs/gfs2/ops_file.c +++ b/fs/gfs2/ops_file.c @@ -394,6 +394,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct page *page) last_index = ip->i_inode.i_size >> PAGE_CACHE_SHIFT; if (page->index > last_index) goto out_unlock_page; + ret = 0; if (!PageUptodate(page) || page->mapping != ip->i_inode.i_mapping) goto out_unlock_page; if (gfs2_is_stuffed(ip)) { |
