ext4: move check under lock scope to close a race.

[firefly-linux-kernel-4.4.55.git] / fs / ocfs2 / ocfs2.h

diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index fdbcbfed529ee5ff4cca3ef339cee5341db8b892..8490c64d34fef4fd0421c4bb7e7c7ea9f6d87bca 100644 (file)
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -209,6 +209,11 @@ struct ocfs2_lock_res {
 #endif
 };
 
+enum ocfs2_orphan_reco_type {
+       ORPHAN_NO_NEED_TRUNCATE = 0,
+       ORPHAN_NEED_TRUNCATE,
+};
+
 enum ocfs2_orphan_scan_state {
        ORPHAN_SCAN_ACTIVE,
        ORPHAN_SCAN_INACTIVE
@@ -495,6 +500,14 @@ static inline int ocfs2_writes_unwritten_extents(struct ocfs2_super *osb)
        return 0;
 }
 
+static inline int ocfs2_supports_append_dio(struct ocfs2_super *osb)
+{
+       if (osb->s_feature_ro_compat & OCFS2_FEATURE_RO_COMPAT_APPEND_DIO)
+               return 1;
+       return 0;
+}
+
+
 static inline int ocfs2_supports_inline_data(struct ocfs2_super *osb)
 {
        if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_INLINE_DATA)
@@ -726,6 +739,16 @@ static inline unsigned int ocfs2_clusters_for_bytes(struct super_block *sb,
        return clusters;
 }
 
+static inline unsigned int ocfs2_bytes_to_clusters(struct super_block *sb,
+               u64 bytes)
+{
+       int cl_bits = OCFS2_SB(sb)->s_clustersize_bits;
+       unsigned int clusters;
+
+       clusters = (unsigned int)(bytes >> cl_bits);
+       return clusters;
+}
+
 static inline u64 ocfs2_blocks_for_bytes(struct super_block *sb,
                                         u64 bytes)
 {