[PATCH] libf2fs: reset wanted_total_sectors by new sector_size

[Jaegeuk Kim <jaegeuk@kernel.org>]

From: katao <katao@xiaomi.com>

The args of wanted_total_sectors is calculated based
on the DEFAULT_SECTOR_SIZE(512Bytes).get_device_info(i)
may be reset dev_sector_size, we should reset the number
of wanted_total_sectors.

This bug was reported to Google Issue Tracker.
Link: https://issuetracker.google.com/issues/76407663

Signed-off-by: katao <katao@xiaomi.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
---
 lib/libf2fs.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/libf2fs.c b/lib/libf2fs.c
index 0c684d5..5f11796 100644
--- a/lib/libf2fs.c
+++ b/lib/libf2fs.c
@@ -799,8 +799,15 @@ int get_device_info(int i)
 #ifdef BLKSSZGET
 		if (ioctl(fd, BLKSSZGET, &sector_size) < 0)
 			MSG(0, "\tError: Using the default sector size\n");
-		else if (dev->sector_size < sector_size)
+		else if (dev->sector_size < sector_size){
+			/*
+			 * wanted_total_sectors need to be reset by new
+			 * sector_size.
+			 */
+			c.wanted_total_sectors = (c.wanted_total_sectors *
+						dev->sector_size) / sector_size;
 			dev->sector_size = sector_size;
+		}
 #endif
 #ifdef BLKGETSIZE64
 		if (ioctl(fd, BLKGETSIZE64, &dev->total_sectors) < 0) {
-- 
2.15.0.531.g2ccb3012c9-goog


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