From 2c68a1dfbd8e3ec3ffa274d63312a7bb43b32f47 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 14 Oct 2019 10:36:40 -0700
Subject: [PATCH] xfs: remove the unused ic_io_size field from xlog_in_core
Git-commit: 2c68a1dfbd8e3ec3ffa274d63312a7bb43b32f47
Patch-mainline: v5.5-rc1
References: git-fixes

ic_io_size is only used inside xlog_write_iclog, where we can just use
the count parameter intead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Acked-by: Anthony Iliopoulos <ailiop@suse.com>

---
 fs/xfs/xfs_log.c      | 6 ++----
 fs/xfs/xfs_log_priv.h | 3 ---
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 37b6787a8f7e5..0fb4fc5afee43 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1740,8 +1740,6 @@ xlog_write_iclog(
 		return;
 	}
 
-	iclog->ic_io_size = count;
-
 	bio_init(&iclog->ic_bio, iclog->ic_bvec, howmany(count, PAGE_SIZE));
 	bio_set_dev(&iclog->ic_bio, log->l_targ->bt_bdev);
 	iclog->ic_bio.bi_iter.bi_sector = log->l_logBBstart + bno;
@@ -1751,9 +1749,9 @@ xlog_write_iclog(
 	if (need_flush)
 		iclog->ic_bio.bi_opf |= REQ_PREFLUSH;
 
-	xlog_map_iclog_data(&iclog->ic_bio, iclog->ic_data, iclog->ic_io_size);
+	xlog_map_iclog_data(&iclog->ic_bio, iclog->ic_data, count);
 	if (is_vmalloc_addr(iclog->ic_data))
-		flush_kernel_vmap_range(iclog->ic_data, iclog->ic_io_size);
+		flush_kernel_vmap_range(iclog->ic_data, count);
 
 	/*
 	 * If this log buffer would straddle the end of the log we will have
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index b880c23cb6e4f..90e210e433cf3 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -179,8 +179,6 @@ typedef struct xlog_ticket {
  * - ic_next is the pointer to the next iclog in the ring.
  * - ic_log is a pointer back to the global log structure.
  * - ic_size is the full size of the log buffer, minus the cycle headers.
- * - ic_io_size is the size of the currently pending log buffer write, which
- *	might be smaller than ic_size
  * - ic_offset is the current number of bytes written to in this iclog.
  * - ic_refcnt is bumped when someone is writing to the log.
  * - ic_state is the state of the iclog.
@@ -205,7 +203,6 @@ typedef struct xlog_in_core {
 	struct xlog_in_core	*ic_prev;
 	struct xlog		*ic_log;
 	u32			ic_size;
-	u32			ic_io_size;
 	u32			ic_offset;
 	unsigned short		ic_state;
 	char			*ic_datap;	/* pointer to iclog data */
-- 
2.26.1