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| author | Tao Ma <tao.ma@oracle.com> | 2010-05-10 18:09:47 +0800 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2010-05-18 16:41:21 -0700 |
| commit | d5a7df0649fa6a1e7800785d760e2c7d7a3204de (patch) | |
| tree | 35df1668e3d68dd71789e88bd9c01f914a811607 /fs | |
| parent | 41841b0bcea8af7f3bff8b2a23d542b94d9c1bb1 (diff) | |
| download | linux-d5a7df0649fa6a1e7800785d760e2c7d7a3204de.tar.gz linux-d5a7df0649fa6a1e7800785d760e2c7d7a3204de.tar.bz2 linux-d5a7df0649fa6a1e7800785d760e2c7d7a3204de.zip | |
ocfs2: Reset xattr value size after xa_cleanup_value_truncate().
In ocfs2_prepare_xattr_entry, if we fail to grow an existing value,
xa_cleanup_value_truncate() will leave the old entry in place. Thus, we
reset its value size. However, if we were allocating a new value, we
must not reset the value size or we will BUG(). This resolves
oss.oracle.com bug 1247.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ocfs2/xattr.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index a1cf195935cf..e87130f44cb7 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -2135,15 +2135,18 @@ alloc_value: orig_clusters = ocfs2_xa_value_clusters(loc); rc = ocfs2_xa_value_truncate(loc, xi->xi_value_len, ctxt); if (rc < 0) { - /* - * If we tried to grow an existing external value, - * ocfs2_xa_cleanuP-value_truncate() is going to - * let it stand. We have to restore its original - * value size. - */ - loc->xl_entry->xe_value_size = orig_value_size; ocfs2_xa_cleanup_value_truncate(loc, "growing", orig_clusters); + /* + * If we were growing an existing value, + * ocfs2_xa_cleanup_value_truncate() won't remove + * the entry. We need to restore the original value + * size. + */ + if (loc->xl_entry) { + BUG_ON(!orig_value_size); + loc->xl_entry->xe_value_size = orig_value_size; + } mlog_errno(rc); } } |