Remove the mp argument as this function is only called in transaction
context, and open code xfs_getsb given that the function already accesses
the buffer pointer in the mount point directly.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/libxfs/xfs_sb.c | 4 ++--
fs/xfs/xfs_trans.c | 2 +-
fs/xfs/xfs_trans.h | 2 +-
fs/xfs/xfs_trans_buf.c | 46 ++++++++++++++----------------------------
4 files changed, 19 insertions(+), 35 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index ae9aaf1f34bfcc..15d03d96753769 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -954,7 +954,7 @@ xfs_log_sb(
struct xfs_trans *tp)
{
struct xfs_mount *mp = tp->t_mountp;
- struct xfs_buf *bp = xfs_trans_getsb(tp, mp);
+ struct xfs_buf *bp = xfs_trans_getsb(tp);
mp->m_sb.sb_icount = percpu_counter_sum(&mp->m_icount);
mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree);
@@ -1084,7 +1084,7 @@ xfs_sync_sb_buf(
if (error)
return error;
- bp = xfs_trans_getsb(tp, mp);
+ bp = xfs_trans_getsb(tp);
xfs_log_sb(tp);
xfs_trans_bhold(tp, bp);
xfs_trans_set_sync(tp);
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index ed72867b1a1937..ca18a040336a1d 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -468,7 +468,7 @@ xfs_trans_apply_sb_deltas(
xfs_buf_t *bp;
int whole = 0;
- bp = xfs_trans_getsb(tp, tp->t_mountp);
+ bp = xfs_trans_getsb(tp);
sbp = bp->b_addr;
/*
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index b752501818d257..f46534b7523698 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -209,7 +209,7 @@ xfs_trans_read_buf(
flags, bpp, ops);
}
-struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *);
+struct xfs_buf *xfs_trans_getsb(struct xfs_trans *);
void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 11cd666cd99a63..42d63b830cb9c8 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -166,50 +166,34 @@ xfs_trans_get_buf_map(
}
/*
- * Get and lock the superblock buffer of this file system for the
- * given transaction.
- *
- * We don't need to use incore_match() here, because the superblock
- * buffer is a private buffer which we keep a pointer to in the
- * mount structure.
+ * Get and lock the superblock buffer for the given transaction.
*/
-xfs_buf_t *
+struct xfs_buf *
xfs_trans_getsb(
- xfs_trans_t *tp,
- struct xfs_mount *mp)
+ struct xfs_trans *tp)
{
- xfs_buf_t *bp;
- struct xfs_buf_log_item *bip;
+ struct xfs_buf *bp = tp->t_mountp->m_sb_bp;
/*
- * Default to just trying to lock the superblock buffer
- * if tp is NULL.
+ * Just increment the lock recursion count if the buffer is already
+ * attached to this transaction.
*/
- if (tp == NULL)
- return xfs_getsb(mp);
-
- /*
- * If the superblock buffer already has this transaction
- * pointer in its b_fsprivate2 field, then we know we already
- * have it locked. In this case we just increment the lock
- * recursion count and return the buffer to the caller.
- */
- bp = mp->m_sb_bp;
if (bp->b_transp == tp) {
- bip = bp->b_log_item;
+ struct xfs_buf_log_item *bip = bp->b_log_item;
+
ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_recur++;
+
trace_xfs_trans_getsb_recur(bip);
- return bp;
- }
+ } else {
+ xfs_buf_lock(bp);
+ xfs_buf_hold(bp);
+ _xfs_trans_bjoin(tp, bp, 1);
- bp = xfs_getsb(mp);
- if (bp == NULL)
- return NULL;
+ trace_xfs_trans_getsb(bp->b_log_item);
+ }
- _xfs_trans_bjoin(tp, bp, 1);
- trace_xfs_trans_getsb(bp->b_log_item);
return bp;
}
--
2.28.0
