lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-Id: <20191106101457.11237-14-lczerner@redhat.com> Date: Wed, 6 Nov 2019 11:14:53 +0100 From: Lukas Czerner <lczerner@...hat.com> To: linux-ext4@...r.kernel.org Cc: Theodore Ts'o <tytso@....edu>, David Howells <dhowells@...hat.com>, Al Viro <viro@...iv.linux.org.uk> Subject: [PATCH 13/17] ext4: add ext4_reconfigure for the new mount API Signed-off-by: Lukas Czerner <lczerner@...hat.com> --- fs/ext4/super.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index f863fddc3df3..471fe7b6ad9e 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -94,6 +94,7 @@ static int ext4_check_opt_consistency(struct fs_context *fc, static void ext4_apply_options(struct fs_context *fc, struct super_block *sb); static int ext4_parse_param(struct fs_context *fc, struct fs_parameter *param); static int ext4_get_tree(struct fs_context *fc); +static int ext4_reconfigure(struct fs_context *fc); /* * Lock ordering @@ -126,6 +127,7 @@ static int ext4_get_tree(struct fs_context *fc); static const struct fs_context_operations ext4_context_ops = { .parse_param = ext4_parse_param, .get_tree = ext4_get_tree, + .reconfigure = ext4_reconfigure, }; #if !defined(CONFIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT2) @@ -6113,6 +6115,25 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) return ret; } +static int ext4_reconfigure(struct fs_context *fc) +{ + struct super_block *sb = fc->root->d_sb; + int flags = fc->sb_flags; + int ret; + + fc->s_fs_info = EXT4_SB(sb); + + ret = ext4_check_opt_consistency(fc, sb); + if (ret < 0) + return ret; + + ret = __ext4_remount(fc, sb, &flags); + if (ret < 0) + return ret; + + return 0; +} + #ifdef CONFIG_QUOTA static int ext4_statfs_project(struct super_block *sb, kprojid_t projid, struct kstatfs *buf) -- 2.21.0
Powered by blists - more mailing lists