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From: Kent Overstreet <kent.overstreet@gmail.com>
To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-bcache@vger.kernel.org
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Subject: [PATCH 06/12] fs: factor out d_mark_tmpfile()
Date: Mon, 10 Jun 2019 15:14:14 -0400	[thread overview]
Message-ID: <20190610191420.27007-7-kent.overstreet@gmail.com> (raw)
In-Reply-To: <20190610191420.27007-1-kent.overstreet@gmail.com>

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>
---
 fs/dcache.c            | 10 ++++++++--
 include/linux/dcache.h |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index aac41adf47..18edb4e5bc 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3042,9 +3042,8 @@ 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));
@@ -3054,6 +3053,13 @@ 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 60996e64c5..e0fe330162 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -255,6 +255,7 @@ 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 *);
-- 
2.20.1


  parent reply	other threads:[~2019-06-10 19:15 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-10 19:14 bcachefs status update (it's done cooking; let's get this sucker merged) Kent Overstreet
2019-06-10 19:14 ` [PATCH 01/12] Compiler Attributes: add __flatten Kent Overstreet
2019-06-12 17:16   ` Greg KH
2019-06-10 19:14 ` [PATCH 02/12] locking: SIX locks (shared/intent/exclusive) Kent Overstreet
2019-06-10 19:14 ` [PATCH 03/12] mm: pagecache add lock Kent Overstreet
2019-06-10 19:14 ` [PATCH 04/12] mm: export find_get_pages() Kent Overstreet
2019-06-10 19:14 ` [PATCH 05/12] fs: insert_inode_locked2() Kent Overstreet
2019-06-10 19:14 ` Kent Overstreet [this message]
2019-06-10 19:14 ` [PATCH 07/12] Propagate gfp_t when allocating pte entries from __vmalloc Kent Overstreet
2019-06-10 19:14 ` [PATCH 08/12] block: Add some exports for bcachefs Kent Overstreet
2019-06-10 19:14 ` [PATCH 09/12] bcache: optimize continue_at_nobarrier() Kent Overstreet
2019-06-10 19:14 ` [PATCH 10/12] bcache: move closures to lib/ Kent Overstreet
2019-06-11 10:25   ` Coly Li
2019-06-13  7:28   ` Christoph Hellwig
2019-06-13 11:04     ` Kent Overstreet
2019-06-10 19:14 ` [PATCH 11/12] closures: closure_wait_event() Kent Overstreet
2019-06-11 10:25   ` Coly Li
2019-06-12 17:17   ` Greg KH
2019-06-10 19:14 ` [PATCH 12/12] closures: fix a race on wakeup from closure_sync Kent Overstreet
2019-07-16 10:47   ` Coly Li
2019-07-18  7:46     ` Coly Li
2019-07-22 17:22       ` Kent Overstreet
2019-06-10 20:46 ` bcachefs status update (it's done cooking; let's get this sucker merged) Linus Torvalds
2019-06-11  1:17   ` Kent Overstreet
2019-06-11  4:33     ` Dave Chinner
2019-06-12 16:21       ` Kent Overstreet
2019-06-12 23:02         ` Dave Chinner
2019-06-13 18:36           ` pagecache locking (was: bcachefs status update) merged) Kent Overstreet
2019-06-13 21:13             ` Andreas Dilger
2019-06-13 21:21               ` Kent Overstreet
2019-06-14  0:35                 ` Dave Chinner
2019-06-13 23:55             ` Dave Chinner
2019-06-14  2:30               ` Linus Torvalds
2019-06-14  7:30                 ` Dave Chinner
2019-06-15  1:15                   ` Linus Torvalds
2019-06-14  3:08               ` Linus Torvalds
2019-06-15  4:01                 ` Linus Torvalds
2019-06-17 22:47                   ` Dave Chinner
2019-06-17 23:38                     ` Linus Torvalds
2019-06-18  4:21                       ` Amir Goldstein
2019-06-19 10:38                         ` Jan Kara
2019-06-19 22:37                           ` Dave Chinner
2019-07-03  0:04                             ` pagecache locking Boaz Harrosh
     [not found]                               ` <DM6PR19MB250857CB8A3A1C8279D6F2F3C5FB0@DM6PR19MB2508.namprd19.prod.outlook.com>
2019-07-03  1:25                                 ` Boaz Harrosh
2019-07-05 23:31                               ` Dave Chinner
2019-07-07 15:05                                 ` Boaz Harrosh
2019-07-07 23:55                                   ` Dave Chinner
2019-07-08 13:31                                 ` Jan Kara
2019-07-09 23:47                                   ` Dave Chinner
2019-07-10  8:41                                     ` Jan Kara
2019-06-14 17:08               ` pagecache locking (was: bcachefs status update) merged) Kent Overstreet
2019-06-19  8:21           ` bcachefs status update (it's done cooking; let's get this sucker merged) Jan Kara
2019-07-03  1:04             ` [PATCH] mm: Support madvise_willneed override by Filesystems Boaz Harrosh
2019-07-03 17:21               ` Jan Kara
2019-07-03 18:03                 ` Boaz Harrosh
2019-06-11  4:55     ` bcachefs status update (it's done cooking; let's get this sucker merged) Linus Torvalds
2019-06-11 14:26       ` Matthew Wilcox
2019-06-11  4:10   ` Dave Chinner
2019-06-11  4:39     ` Linus Torvalds
2019-06-11  7:10       ` Dave Chinner
2019-06-12  2:07         ` Linus Torvalds
2019-07-03  5:59 ` Stefan K

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