diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-07-09 23:27:33 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@gmail.com> | 2018-07-16 03:57:02 -0400 |
| commit | 4e1e2a18b97fd705199851a243491b8974c7f75a (patch) | |
| tree | 9b652c24012cf12a5dc4173d0f4fa2c1f435aebf | |
| parent | 3a9173fe1743552a9e864bda62fbe48953ffdea4 (diff) | |
fs: factor out d_mark_tmpfile()
New helper for bcachefs - bcachefs doesn't want the
inode_dec_link_count() call that d_tmpfile does, it handles i_nlink on
its own atomically with other btree updates
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
| -rw-r--r-- | fs/dcache.c | 10 | ||||
| -rw-r--r-- | include/linux/dcache.h | 1 |
2 files changed, 9 insertions, 2 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 8945e6cabd93..4705a464bc0a 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -3585,9 +3585,8 @@ void d_genocide(struct dentry *parent) d_walk(parent, parent, d_genocide_kill, NULL); } -void d_tmpfile(struct dentry *dentry, struct inode *inode) +void d_mark_tmpfile(struct dentry *dentry, struct inode *inode) { - inode_dec_link_count(inode); BUG_ON(dentry->d_name.name != dentry->d_iname || !hlist_unhashed(&dentry->d_u.d_alias) || !d_unlinked(dentry)); @@ -3597,6 +3596,13 @@ void d_tmpfile(struct dentry *dentry, struct inode *inode) (unsigned long long)inode->i_ino); spin_unlock(&dentry->d_lock); spin_unlock(&dentry->d_parent->d_lock); +} +EXPORT_SYMBOL(d_mark_tmpfile); + +void d_tmpfile(struct dentry *dentry, struct inode *inode) +{ + inode_dec_link_count(inode); + d_mark_tmpfile(dentry, inode); d_instantiate(dentry, inode); } EXPORT_SYMBOL(d_tmpfile); diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 82a99d366aec..ad646b5f4906 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -257,6 +257,7 @@ extern struct dentry * d_make_root(struct inode *); /* <clickety>-<click> the ramfs-type tree */ extern void d_genocide(struct dentry *); +extern void d_mark_tmpfile(struct dentry *, struct inode *); extern void d_tmpfile(struct dentry *, struct inode *); extern struct dentry *d_find_alias(struct inode *); |