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f2fs: fix to store and retrieve i_rdev correctly 

When storing i_rdev, we should check its file type.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2013-10-08 18:01:51 +09:00
parent ccaaca2591
commit 3d1e38073b
1 changed files with 32 additions and 17 deletions
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49
fs/f2fs/inode.c
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@ -37,6 +37,31 @@ void f2fs_set_inode_flags(struct inode *inode)
inode->i_flags |= S_DIRSYNC; inode->i_flags |= S_DIRSYNC;
} }
static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
{
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
if (ri->i_addr[0])
inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
else
inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
}
}
static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
{
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
if (old_valid_dev(inode->i_rdev)) {
ri->i_addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev));
ri->i_addr[1] = 0;
} else {
ri->i_addr[0] = 0;
ri->i_addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev));
ri->i_addr[2] = 0;
}
}
}
static int do_read_inode(struct inode *inode) static int do_read_inode(struct inode *inode)
{ {
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
@ -73,10 +98,6 @@ static int do_read_inode(struct inode *inode)
inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
inode->i_generation = le32_to_cpu(ri->i_generation); inode->i_generation = le32_to_cpu(ri->i_generation);
if (ri->i_addr[0])
inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
else
inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
fi->i_current_depth = le32_to_cpu(ri->i_current_depth); fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
@ -84,8 +105,13 @@ static int do_read_inode(struct inode *inode)
fi->flags = 0; fi->flags = 0;
fi->i_advise = ri->i_advise; fi->i_advise = ri->i_advise;
fi->i_pino = le32_to_cpu(ri->i_pino); fi->i_pino = le32_to_cpu(ri->i_pino);
get_extent_info(&fi->ext, ri->i_ext); get_extent_info(&fi->ext, ri->i_ext);
get_inline_info(fi, ri); get_inline_info(fi, ri);
/* get rdev by using inline_info */
__get_inode_rdev(inode, ri);
f2fs_put_page(node_page, 1); f2fs_put_page(node_page, 1);
return 0; return 0;
} }
@ -179,21 +205,10 @@ void update_inode(struct inode *inode, struct page *node_page)
ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
ri->i_generation = cpu_to_le32(inode->i_generation); ri->i_generation = cpu_to_le32(inode->i_generation);
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { __set_inode_rdev(inode, ri);
if (old_valid_dev(inode->i_rdev)) {
ri->i_addr[0] =
cpu_to_le32(old_encode_dev(inode->i_rdev));
ri->i_addr[1] = 0;
} else {
ri->i_addr[0] = 0;
ri->i_addr[1] =
cpu_to_le32(new_encode_dev(inode->i_rdev));
ri->i_addr[2] = 0;
}
}
set_cold_node(inode, node_page); set_cold_node(inode, node_page);
set_page_dirty(node_page); set_page_dirty(node_page);
clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE); clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
} }