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new helper: simple_done_creating()

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should be paired with simple_start_creating() - unlocks parent and
drops dentry reference.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2025-09-19 17:46:01 -04:00
parent 4051a9115a
commit 1552ddc7fa
2 changed files with 9 additions and 0 deletions
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8
fs/libfs.c
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@@ -2326,3 +2326,11 @@ struct dentry *simple_start_creating(struct dentry *parent, const char *name)
return dentry;
}
EXPORT_SYMBOL(simple_start_creating);
/* parent must have been held exclusive since simple_start_creating() */
void simple_done_creating(struct dentry *child)
{
inode_unlock(child->d_parent->d_inode);
dput(child);
}
EXPORT_SYMBOL(simple_done_creating);

1
include/linux/fs.h
View File

@@ -3662,6 +3662,7 @@ extern int simple_fill_super(struct super_block *, unsigned long,
extern int simple_pin_fs(struct file_system_type *, struct vfsmount **mount, int *count);
extern void simple_release_fs(struct vfsmount **mount, int *count);
struct dentry *simple_start_creating(struct dentry *, const char *);
void simple_done_creating(struct dentry *);
extern ssize_t simple_read_from_buffer(void __user *to, size_t count,
loff_t *ppos, const void *from, size_t available);