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befs fixes for 4.12-rc1

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Merge tag 'befs-v4.12-rc1' of git://github.com/luisbg/linux-befs

Pull befs fix from Luis de Bethencourt:
 "One fix from Fabian Frederick making the nfs client still work after a
  cache drop"

* tag 'befs-v4.12-rc1' of git://github.com/luisbg/linux-befs:
  befs: make export work with cold dcache
This commit is contained in:
Linus Torvalds 2017-05-05 13:33:38 -07:00
commit 414975eb76
1 changed files with 15 additions and 0 deletions
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15
fs/befs/linuxvfs.c
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@ -58,6 +58,7 @@ static struct dentry *befs_fh_to_dentry(struct super_block *sb,
struct fid *fid, int fh_len, int fh_type);
static struct dentry *befs_fh_to_parent(struct super_block *sb,
struct fid *fid, int fh_len, int fh_type);
static struct dentry *befs_get_parent(struct dentry *child);
static const struct super_operations befs_sops = {
.alloc_inode = befs_alloc_inode, /* allocate a new inode */
@ -93,6 +94,7 @@ static const struct address_space_operations befs_symlink_aops = {
static const struct export_operations befs_export_operations = {
.fh_to_dentry = befs_fh_to_dentry,
.fh_to_parent = befs_fh_to_parent,
.get_parent = befs_get_parent,
};
/*
@ -667,6 +669,19 @@ static struct dentry *befs_fh_to_parent(struct super_block *sb,
befs_nfs_get_inode);
}
static struct dentry *befs_get_parent(struct dentry *child)
{
struct inode *parent;
struct befs_inode_info *befs_ino = BEFS_I(d_inode(child));
parent = befs_iget(child->d_sb,
(unsigned long)befs_ino->i_parent.start);
if (IS_ERR(parent))
return ERR_CAST(parent);
return d_obtain_alias(parent);
}
enum {
Opt_uid, Opt_gid, Opt_charset, Opt_debug, Opt_err,
};