diff options
Diffstat (limited to 'fs/exfat/inode.c')
| -rw-r--r-- | fs/exfat/inode.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c index b02677c9fd45..522edcbb2ce4 100644 --- a/fs/exfat/inode.c +++ b/fs/exfat/inode.c @@ -75,8 +75,17 @@ int __exfat_write_inode(struct inode *inode, int sync) if (ei->start_clu == EXFAT_EOF_CLUSTER) on_disk_size = 0; - ep2->dentry.stream.valid_size = cpu_to_le64(ei->valid_size); ep2->dentry.stream.size = cpu_to_le64(on_disk_size); + /* + * mmap write does not use exfat_write_end(), valid_size may be + * extended to the sector-aligned length in exfat_get_block(). + * So we need to fixup valid_size to the writren length. + */ + if (on_disk_size < ei->valid_size) + ep2->dentry.stream.valid_size = ep2->dentry.stream.size; + else + ep2->dentry.stream.valid_size = cpu_to_le64(ei->valid_size); + if (on_disk_size) { ep2->dentry.stream.flags = ei->flags; ep2->dentry.stream.start_clu = cpu_to_le32(ei->start_clu); @@ -340,6 +349,9 @@ static int exfat_get_block(struct inode *inode, sector_t iblock, pos, ei->i_size_aligned); goto unlock_ret; } + + ei->valid_size = EXFAT_BLK_TO_B(iblock + max_blocks, sb); + mark_inode_dirty(inode); } else { valid_blks = EXFAT_B_TO_BLK(ei->valid_size, sb); |