linux-ext4 - [RFC PATCH v3 39/61] e2fsck: merge extent depth count after threads finish

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Message-Id: <20201118153947.3394530-40-saranyamohan@google.com>
Date:   Wed, 18 Nov 2020 07:39:25 -0800
From:   Saranya Muruganandam <saranyamohan@...gle.com>
To:     linux-ext4@...r.kernel.org, tytso@....edu
Cc:     adilger.kernel@...ger.ca, Wang Shilong <wshilong@....com>,
        Saranya Muruganandam <saranyamohan@...gle.com>
Subject: [RFC PATCH v3 39/61] e2fsck: merge extent depth count after threads finish

From: Wang Shilong <wshilong@....com>

tests covered by f_extent_htree.

Signed-off-by: Wang Shilong <wshilong@....com>
Signed-off-by: Saranya Muruganandam <saranyamohan@...gle.com>
---
 e2fsck/pass1.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index 09bfef44..0a872028 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -2935,8 +2935,11 @@ static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx
 	ext2_refcount_t ea_inode_refs = global_ctx->ea_inode_refs;
 	ext2fs_block_bitmap  block_found_map = global_ctx->block_found_map;
 	ext2fs_block_bitmap  block_dup_map = global_ctx->block_dup_map;
-	int options = global_ctx->options;
+	int options = global_ctx->options, i;
+	__u32 extent_depth_count[MAX_EXTENT_DEPTH_COUNT];
 
+	memcpy(extent_depth_count, global_ctx->extent_depth_count,
+	       sizeof(extent_depth_count));
 #ifdef HAVE_SETJMP_H
 	jmp_buf		 old_jmp;
 
@@ -2996,6 +2999,12 @@ static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx
 	 * later passes will recalculate it if necessary
 	 */
 	global_ctx->lost_and_found = 0;
+	memcpy(global_ctx->extent_depth_count, extent_depth_count,
+	       sizeof(extent_depth_count));
+	/* merge extent depth count */
+	for (i = 0; i < MAX_EXTENT_DEPTH_COUNT; i++)
+		global_ctx->extent_depth_count[i] +=
+			thread_ctx->extent_depth_count[i];
 
 	retval = e2fsck_pass1_merge_fs(global_fs, thread_fs);
 	if (retval) {
-- 
2.29.2.299.gdc1121823c-goog