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| author | Fabian Frederick <fabf@skynet.be> | 2017-03-28 20:16:46 +0200 |
|---|---|---|
| committer | Luis de Bethencourt <luisbg@osg.samsung.com> | 2017-05-05 11:35:35 +0100 |
| commit | dcfd9b215b89d72c1053a717571d52bf96cc64f8 (patch) | |
| tree | da00995740f9fb5c9a62cfff5e48e859cd2124b4 /fs/befs | |
| parent | a351e9b9fc24e982ec2f0e76379a49826036da12 (diff) | |
| download | linux-dcfd9b215b89d72c1053a717571d52bf96cc64f8.tar.bz2 | |
befs: make export work with cold dcache
based on commit b3b42c0deaa1
("fs/affs: make export work with cold dcache")
This adds get_parent function so that nfs client can still work after
cache drop (Tested on NFS v4 with echo 3 > /proc/sys/vm/drop_caches)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Diffstat (limited to 'fs/befs')
| -rw-r--r-- | fs/befs/linuxvfs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index c500e954debb..63e7c4760bfb 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -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, }; |