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authorAl Viro <viro@zeniv.linux.org.uk>2017-06-09 04:15:45 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2017-06-09 23:28:01 +0300
commit6b0d144fa758869bdd652c50aa41aaf601232550 (patch)
treea47f0b980f80de487442f3fdd814d153c636d86f
parenteb315d2ae614493fd1ebb026c75a80573d84f7ad (diff)
downloadlinux-6b0d144fa758869bdd652c50aa41aaf601232550.tar.xz
ufs: set correct ->s_maxsize
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/ufs/super.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 131b2b77c818..d9aa2627c9df 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -746,6 +746,23 @@ static void ufs_put_super(struct super_block *sb)
return;
}
+static u64 ufs_max_bytes(struct super_block *sb)
+{
+ struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+ int bits = uspi->s_apbshift;
+ u64 res;
+
+ if (bits > 21)
+ res = ~0ULL;
+ else
+ res = UFS_NDADDR + (1LL << bits) + (1LL << (2*bits)) +
+ (1LL << (3*bits));
+
+ if (res >= (MAX_LFS_FILESIZE >> uspi->s_bshift))
+ return MAX_LFS_FILESIZE;
+ return res << uspi->s_bshift;
+}
+
static int ufs_fill_super(struct super_block *sb, void *data, int silent)
{
struct ufs_sb_info * sbi;
@@ -1212,6 +1229,7 @@ magic_found:
"fast symlink size (%u)\n", uspi->s_maxsymlinklen);
uspi->s_maxsymlinklen = maxsymlen;
}
+ sb->s_maxbytes = ufs_max_bytes(sb);
sb->s_max_links = UFS_LINK_MAX;
inode = ufs_iget(sb, UFS_ROOTINO);