From: Eric Sandeen <sandeen@redhat.com>
Date: Tue, 18 Dec 2007 00:20:07 +0000 (-0800)
Subject: ecryptfs: set s_blocksize from lower fs in sb
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7c9e70efbfc3186674d93451e0fbf18365347b4d;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

ecryptfs: set s_blocksize from lower fs in sb

eCryptfs wasn't setting s_blocksize in it's superblock; just pick it up
from the lower FS.  Having an s_blocksize of 0 made things like "filefrag"
which call FIGETBSZ unhappy.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Mike Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index b83a512b7e08..a277754da171 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -523,6 +523,7 @@ static int ecryptfs_read_super(struct super_block *sb, const char *dev_name)
 	lower_mnt = nd.mnt;
 	ecryptfs_set_superblock_lower(sb, lower_root->d_sb);
 	sb->s_maxbytes = lower_root->d_sb->s_maxbytes;
+	sb->s_blocksize = lower_root->d_sb->s_blocksize;
 	ecryptfs_set_dentry_lower(sb->s_root, lower_root);
 	ecryptfs_set_dentry_lower_mnt(sb->s_root, lower_mnt);
 	rc = ecryptfs_interpose(lower_root, sb->s_root, sb, 0);