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authorLinus Torvalds <torvalds@linux-foundation.org>2024-01-11 20:11:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-01-11 20:11:35 -0800
commit499aa1ca4eb6602df38afaecb88fc14edf50cdbb (patch)
tree32ab97c0ab43eea0e313cd1f6ec0b904a689b17b /fs/internal.h
parentbf4e7080aeed29354cb156a8eb5d221ab2b6a8cc (diff)
parent1b6ae9f6e6c3e3c35aad0f11b116a81780b8aa03 (diff)
Merge tag 'pull-dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull dcache updates from Al Viro: "Change of locking rules for __dentry_kill(), regularized refcounting rules in that area, assorted cleanups and removal of weird corner cases (e.g. now ->d_iput() on child is always called before the parent might hit __dentry_kill(), etc)" * tag 'pull-dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits) dcache: remove unnecessary NULL check in dget_dlock() kill DCACHE_MAY_FREE __d_unalias() doesn't use inode argument d_alloc_parallel(): in-lookup hash insertion doesn't need an RCU variant get rid of DCACHE_GENOCIDE d_genocide(): move the extern into fs/internal.h simple_fill_super(): don't bother with d_genocide() on failure nsfs: use d_make_root() d_alloc_pseudo(): move setting ->d_op there from the (sole) caller kill d_instantate_anon(), fold __d_instantiate_anon() into remaining caller retain_dentry(): introduce a trimmed-down lockless variant __dentry_kill(): new locking scheme d_prune_aliases(): use a shrink list switch select_collect{,2}() to use of to_shrink_list() to_shrink_list(): call only if refcount is 0 fold dentry_kill() into dput() don't try to cut corners in shrink_lock_dentry() fold the call of retain_dentry() into fast_dput() Call retain_dentry() with refcount 0 dentry_kill(): don't bother with retain_dentry() on slow path ...
Diffstat (limited to 'fs/internal.h')
-rw-r--r--fs/internal.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/internal.h b/fs/internal.h
index 93cdeeb858cb..b67406435fc0 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -214,6 +214,11 @@ extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *)
extern char *simple_dname(struct dentry *, char *, int);
extern void dput_to_list(struct dentry *, struct list_head *);
extern void shrink_dentry_list(struct list_head *);
+extern void shrink_dcache_for_umount(struct super_block *);
+extern struct dentry *__d_lookup(const struct dentry *, const struct qstr *);
+extern struct dentry *__d_lookup_rcu(const struct dentry *parent,
+ const struct qstr *name, unsigned *seq);
+extern void d_genocide(struct dentry *);
/*
* pipe.c