lkml.org 
[lkml]   [2017]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH 3.2 077/106] ufs: set correct ->s_maxsize
3.2.93-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@zeniv.linux.org.uk>

commit 6b0d144fa758869bdd652c50aa41aaf601232550 upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/ufs/super.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -695,6 +695,23 @@ static void ufs_put_super_internal(struc
UFSD("EXIT\n");
}

+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;
@@ -1157,6 +1174,7 @@ magic_found:
"fast symlink size (%u)\n", uspi->s_maxsymlinklen);
uspi->s_maxsymlinklen = maxsymlen;
}
+ sb->s_maxbytes = ufs_max_bytes(sb);

inode = ufs_iget(sb, UFS_ROOTINO);
if (IS_ERR(inode)) {
\
 
 \ /
  Last update: 2017-09-10 00:52    [W:0.459 / U:0.356 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site