diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-07-09 23:27:33 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@gmail.com> | 2018-08-12 17:04:12 -0400 |
| commit | 36cbbecaefea10b9e368134c96bf6c9979707c24 (patch) | |
| tree | d3c6d0a781d73a6071530399274a179fe4a4c825 | |
| parent | 81cb6568131df783dcf01df1dc7a7dc56f8f1628 (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 ceb7b491d1b9..285e53ae231d 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -3087,9 +3087,8 @@ void d_genocide(struct dentry *parent) EXPORT_SYMBOL(d_genocide); -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)); @@ -3099,6 +3098,13 @@ 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 66c6e17e61e5..255b7155d631 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -256,6 +256,7 @@ 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 *); |