jbd2: refine waiting for shadow buffers

[platform/upstream/kernel-adaptation-pc.git] / include / linux / jbd2.h

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index b7dc40d..e33e84b 100644 (file)
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -302,6 +302,34 @@ typedef struct journal_superblock_s
 
 #include <linux/fs.h>
 #include <linux/sched.h>
+
+enum jbd_state_bits {
+       BH_JBD                  /* Has an attached ext3 journal_head */
+         = BH_PrivateStart,
+       BH_JWrite,              /* Being written to log (@@@ DEBUGGING) */
+       BH_Freed,               /* Has been freed (truncated) */
+       BH_Revoked,             /* Has been revoked from the log */
+       BH_RevokeValid,         /* Revoked flag is valid */
+       BH_JBDDirty,            /* Is dirty but journaled */
+       BH_State,               /* Pins most journal_head state */
+       BH_JournalHead,         /* Pins bh->b_private and jh->b_bh */
+       BH_Shadow,              /* IO on shadow buffer is running */
+       BH_Verified,            /* Metadata block has been verified ok */
+       BH_JBDPrivateStart,     /* First bit available for private use by FS */
+};
+
+BUFFER_FNS(JBD, jbd)
+BUFFER_FNS(JWrite, jwrite)
+BUFFER_FNS(JBDDirty, jbddirty)
+TAS_BUFFER_FNS(JBDDirty, jbddirty)
+BUFFER_FNS(Revoked, revoked)
+TAS_BUFFER_FNS(Revoked, revoked)
+BUFFER_FNS(RevokeValid, revokevalid)
+TAS_BUFFER_FNS(RevokeValid, revokevalid)
+BUFFER_FNS(Freed, freed)
+BUFFER_FNS(Shadow, shadow)
+BUFFER_FNS(Verified, verified)
+
 #include <linux/jbd_common.h>
 
 #define J_ASSERT(assert)       BUG_ON(!(assert))