diff options
| author | Deepa Dinamani <deepa.kernel@gmail.com> | 2016-09-14 07:48:04 -0700 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-09-27 21:06:21 -0400 |
| commit | 078cd8279e659989b103359bb22373cc79445bde (patch) | |
| tree | 923e3fe84d232cc9ba31481852ea1faf46f56fb6 /security | |
| parent | 2554c72edb81c97ae5307613dd0aee1ef8dd13ca (diff) | |
| download | lwn-078cd8279e659989b103359bb22373cc79445bde.tar.gz lwn-078cd8279e659989b103359bb22373cc79445bde.zip | |
fs: Replace CURRENT_TIME with current_time() for inode timestamps
CURRENT_TIME macro is not appropriate for filesystems as it
doesn't use the right granularity for filesystem timestamps.
Use current_time() instead.
CURRENT_TIME is also not y2038 safe.
This is also in preparation for the patch that transitions
vfs timestamps to use 64 bit time and hence make them
y2038 safe. As part of the effort current_time() will be
extended to do range checks. Hence, it is necessary for all
file system timestamps to use current_time(). Also,
current_time() will be transitioned along with vfs to be
y2038 safe.
Note that whenever a single call to current_time() is used
to change timestamps in different inodes, it is because they
share the same time granularity.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'security')
| -rw-r--r-- | security/apparmor/apparmorfs.c | 2 | ||||
| -rw-r--r-- | security/inode.c | 2 | ||||
| -rw-r--r-- | security/selinux/selinuxfs.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c index 729e595119ed..5923d5665209 100644 --- a/security/apparmor/apparmorfs.c +++ b/security/apparmor/apparmorfs.c @@ -381,7 +381,7 @@ void __aa_fs_profile_migrate_dents(struct aa_profile *old, for (i = 0; i < AAFS_PROF_SIZEOF; i++) { new->dents[i] = old->dents[i]; if (new->dents[i]) - new->dents[i]->d_inode->i_mtime = CURRENT_TIME; + new->dents[i]->d_inode->i_mtime = current_time(new->dents[i]->d_inode); old->dents[i] = NULL; } } diff --git a/security/inode.c b/security/inode.c index e3df905ab5b1..9cb979d2b013 100644 --- a/security/inode.c +++ b/security/inode.c @@ -117,7 +117,7 @@ struct dentry *securityfs_create_file(const char *name, umode_t mode, inode->i_ino = get_next_ino(); inode->i_mode = mode; - inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; + inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); inode->i_private = data; if (is_dir) { inode->i_op = &simple_dir_inode_operations; diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 0765c5b053b5..72c145dd799f 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -1089,7 +1089,7 @@ static struct inode *sel_make_inode(struct super_block *sb, int mode) if (ret) { ret->i_mode = mode; - ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; + ret->i_atime = ret->i_mtime = ret->i_ctime = current_time(ret); } return ret; } |