From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Biggers Subject: [RFC PATCH v2 08/20] fs/inode.c: export inode_lru_list_del() Date: Mon, 11 Feb 2019 09:27:26 -0800 Message-ID: <20190211172738.4633-9-ebiggers@kernel.org> References: <20190211172738.4633-1-ebiggers@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190211172738.4633-1-ebiggers@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: linux-fscrypt@vger.kernel.org Cc: Satya Tangirala , linux-api@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, keyrings@vger.kernel.org, linux-mtd@lists.infradead.org, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, Paul Crowley List-Id: linux-api@vger.kernel.org From: Eric Biggers When a filesystem encryption key is removed, we need all files which had been "unlocked" (had ->i_crypt_info set up) with it to appear "locked" again. This is most easily done by evicting the inodes. This can currently be done using 'echo 2 > /proc/sys/vm/drop_caches'; however, that is overkill and not usable by non-root users. In preparation for allowing fs/crypto/ to evict just the needed inodes, make inode_lru_list_del() non-static. Signed-off-by: Eric Biggers --- fs/inode.c | 4 +--- include/linux/fs.h | 1 + 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 0cd47fe0dbe5..037df483c9af 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -426,10 +426,8 @@ void inode_add_lru(struct inode *inode) inode_lru_list_add(inode); } - -static void inode_lru_list_del(struct inode *inode) +void inode_lru_list_del(struct inode *inode) { - if (list_lru_del(&inode->i_sb->s_inode_lru, &inode->i_lru)) this_cpu_dec(nr_unused); } diff --git a/include/linux/fs.h b/include/linux/fs.h index 70d929ac89f9..326cbb044596 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2986,6 +2986,7 @@ extern void unlock_new_inode(struct inode *); extern void discard_new_inode(struct inode *); extern unsigned int get_next_ino(void); extern void evict_inodes(struct super_block *sb); +extern void inode_lru_list_del(struct inode *inode); extern void __iget(struct inode * inode); extern void iget_failed(struct inode *); -- 2.20.1