linux-ext4 - [PATCH 1/1] e2fsck: Add percent to files and blocks feature

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Date:   Sun, 23 Apr 2023 10:23:49 +0200
From:   Oscar Megia López <megia.oscar@...il.com>
To:     linux-ext4@...r.kernel.org
Cc:     Oscar Megia López <megia.oscar@...il.com>
Subject: [PATCH 1/1] e2fsck: Add percent to files and blocks feature

I need percentages to see how disk is occupied.
Used and maximum are good, but humans work better with percentages.

When my linux boots,
I haven't enough time to remember numbers and calculate.

My PC is very fast. I can only see the message for one or two seconds.

If also I would see percentages for me would be perfect.

I think that this feature is going to be good for everyone.

Signed-off-by: Oscar Megia López <megia.oscar@...il.com>
---
 e2fsck/unix.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/e2fsck/unix.c b/e2fsck/unix.c
index e5b672a2..b820ca8d 100644
--- a/e2fsck/unix.c
+++ b/e2fsck/unix.c
@@ -350,6 +350,8 @@ static void check_if_skip(e2fsck_t ctx)
 	int defer_check_on_battery;
 	int broken_system_clock;
 	time_t lastcheck;
+	char percent_files[9];
+	char percent_blocks[9];
 
 	if (ctx->flags & E2F_FLAG_PROBLEMS_FIXED)
 		return;
@@ -442,14 +444,33 @@ static void check_if_skip(e2fsck_t ctx)
 		ext2fs_mark_super_dirty(fs);
 	}
 
+	/* Calculate percentages */
+	if (fs->super->s_inodes_count > 0) {
+		snprintf(percent_files, sizeof(percent_files), " (%u%%) ",
+		((fs->super->s_inodes_count - fs->super->s_free_inodes_count) * 100) /
+		fs->super->s_inodes_count);
+	} else {
+		snprintf(percent_files, sizeof(percent_files), " ");
+	}
+
+	if (ext2fs_blocks_count(fs->super) > 0) {
+		snprintf(percent_blocks, sizeof(percent_blocks), " (%llu%%) ",
+		(unsigned long long) ((ext2fs_blocks_count(fs->super) -
+		ext2fs_free_blocks_count(fs->super)) * 100) / ext2fs_blocks_count(fs->super));
+	} else {
+		snprintf(percent_blocks, sizeof(percent_blocks), " ");
+	}
+
 	/* Print the summary message when we're skipping a full check */
-	log_out(ctx, _("%s: clean, %u/%u files, %llu/%llu blocks"),
+	log_out(ctx, _("%s: clean, %u/%u%sfiles, %llu/%llu%sblocks"),
 		ctx->device_name,
 		fs->super->s_inodes_count - fs->super->s_free_inodes_count,
 		fs->super->s_inodes_count,
+		percent_files,
 		(unsigned long long) ext2fs_blocks_count(fs->super) -
 		ext2fs_free_blocks_count(fs->super),
-		(unsigned long long) ext2fs_blocks_count(fs->super));
+		(unsigned long long) ext2fs_blocks_count(fs->super),
+		percent_blocks);
 	next_check = 100000;
 	if (fs->super->s_max_mnt_count > 0) {
 		next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
-- 
2.40.0