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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-07 15:03:58 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-20 01:44:17 -0400 |
| commit | a4464dbc0ca6a3ab8e9d1206bc05059dae2a559d (patch) | |
| tree | d3c9332ab72cf5a4eba483ba1ff83c54ca4c42a0 /fs/internal.h | |
| parent | e3c3d9c838d48c0341c40ea45ee087e3d8c8ea39 (diff) | |
| download | linux-rt-a4464dbc0ca6a3ab8e9d1206bc05059dae2a559d.tar.gz | |
Make ->d_sb assign-once and always non-NULL
New helper (non-exported, fs/internal.h-only): __d_alloc(sb, name).
Allocates dentry, sets its ->d_sb to given superblock and sets
->d_op accordingly. Old d_alloc(NULL, name) callers are converted
to that (all of them know what superblock they want). d_alloc()
itself is left only for parent != NULl case; uses __d_alloc(),
inserts result into the list of parent's children.
Note that now ->d_sb is assign-once and never NULL *and*
->d_parent is never NULL either.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/internal.h')
| -rw-r--r-- | fs/internal.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/internal.h b/fs/internal.h index b29c46e4e32f..ae47c48bedde 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -135,3 +135,8 @@ extern void inode_wb_list_del(struct inode *inode); extern int get_nr_dirty_inodes(void); extern void evict_inodes(struct super_block *); extern int invalidate_inodes(struct super_block *, bool); + +/* + * dcache.c + */ +extern struct dentry *__d_alloc(struct super_block *, const struct qstr *); |