diff options
Diffstat (limited to 'fs/adfs/inode.c')
| -rw-r--r-- | fs/adfs/inode.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c index d5250c5aae2..b9acadafa4a 100644 --- a/fs/adfs/inode.c +++ b/fs/adfs/inode.c @@ -45,6 +45,14 @@ static int adfs_readpage(struct file *file, struct page *page) return block_read_full_page(page, adfs_get_block); } +static void adfs_write_failed(struct address_space *mapping, loff_t to) +{ + struct inode *inode = mapping->host; + + if (to > inode->i_size) + truncate_pagecache(inode, inode->i_size); +} + static int adfs_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) @@ -55,11 +63,8 @@ static int adfs_write_begin(struct file *file, struct address_space *mapping, ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata, adfs_get_block, &ADFS_I(mapping->host)->mmu_private); - if (unlikely(ret)) { - loff_t isize = mapping->host->i_size; - if (pos + len > isize) - vmtruncate(mapping->host, isize); - } + if (unlikely(ret)) + adfs_write_failed(mapping, pos + len); return ret; } @@ -247,7 +252,7 @@ adfs_iget(struct super_block *sb, struct object_info *obj) inode->i_gid = ADFS_SB(sb)->s_gid; inode->i_ino = obj->file_id; inode->i_size = obj->size; - inode->i_nlink = 2; + set_nlink(inode, 2); inode->i_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; @@ -304,8 +309,8 @@ adfs_notify_change(struct dentry *dentry, struct iattr *attr) * we can't change the UID or GID of any file - * we have a global UID/GID in the superblock */ - if ((ia_valid & ATTR_UID && attr->ia_uid != ADFS_SB(sb)->s_uid) || - (ia_valid & ATTR_GID && attr->ia_gid != ADFS_SB(sb)->s_gid)) + if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, ADFS_SB(sb)->s_uid)) || + (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, ADFS_SB(sb)->s_gid))) error = -EPERM; if (error) |