f2fs: do not recover i_size if it's valid

Jaegeuk Kim · pundiramit · commit 65bdf690a315 · 2017-10-15T23:28:17.000+05:30
commit 3a3a5ead7b6d2c9a29f493791ba23f264052db34 upstream.

If i_size is already valid during roll_forward recovery, we should not update
it according to the block alignment.

Signed-off-by: Jaegeuk Kim &lt;jaegeuk@kernel.org&gt;
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
@@ -425,7 +425,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 			continue;
 		}
 
-		if ((start + 1) << PAGE_SHIFT > i_size_read(inode))
+		if (i_size_read(inode) <= (start << PAGE_SHIFT))
 			f2fs_i_size_write(inode, (start + 1) << PAGE_SHIFT);
 
 		/*

Original file line number	Diff line number	Diff line change
`@@ -425,7 +425,7 @@ static int do_recover_data(struct f2fs_sb_info sbi, struct inode inode,`
`425`	`425`	`continue;`
`426`	`426`	`}`
`427`	`427`
`428`		`- if ((start + 1) << PAGE_SHIFT > i_size_read(inode))`
	`428`	`+ if (i_size_read(inode) <= (start << PAGE_SHIFT))`
`429`	`429`	`f2fs_i_size_write(inode, (start + 1) << PAGE_SHIFT);`
`430`	`430`
`431`	`431`	`/*`