From 684666e51585f3b136a3f505f8173d7580bc52cd Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Mon, 23 Jan 2017 18:50:23 +0100 Subject: [PATCH] jfs: atomically read inode size See i_size_read() comments in include/linux/fs.h Signed-off-by: Fabian Frederick Signed-off-by: Dave Kleikamp --- fs/jfs/resize.c | 4 ++-- fs/jfs/super.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c index bd9b641ada2c..7ddcb445a3d9 100644 --- a/fs/jfs/resize.c +++ b/fs/jfs/resize.c @@ -98,7 +98,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize) goto out; } - VolumeSize = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits; + VolumeSize = i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits; if (VolumeSize) { if (newLVSize > VolumeSize) { @@ -211,7 +211,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize) txQuiesce(sb); /* Reset size of direct inode */ - sbi->direct_inode->i_size = sb->s_bdev->bd_inode->i_size; + sbi->direct_inode->i_size = i_size_read(sb->s_bdev->bd_inode); if (sbi->mntflag & JFS_INLINELOG) { /* diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 2be7c9ce6663..51881eb8ccff 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -283,7 +283,7 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize, } case Opt_resize_nosize: { - *newLVSize = sb->s_bdev->bd_inode->i_size >> + *newLVSize = i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits; if (*newLVSize == 0) pr_err("JFS: Cannot determine volume size\n"); @@ -549,7 +549,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent) goto out_unload; } inode->i_ino = 0; - inode->i_size = sb->s_bdev->bd_inode->i_size; + inode->i_size = i_size_read(sb->s_bdev->bd_inode); inode->i_mapping->a_ops = &jfs_metapage_aops; hlist_add_fake(&inode->i_hash); mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); -- 2.20.1