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fs: Replace CURRENT_TIME with current_time() for inode timestamps

Forráskód böngészése 
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>
This commit is contained in:
Deepa Dinamani
2016-09-14 07:48:04 -07:00
committed by Al Viro
szülő 2554c72edb
commit 078cd8279e
76 fájl változott, egészen pontosan 182 új sor hozzáadva és 182 régi sor törölve
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2
fs/proc/base.c
Fájl megtekintése

@@ -1664,7 +1664,7 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
/* Common stuff */
ei = PROC_I(inode);
inode->i_ino = get_next_ino();
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
inode->i_op = &proc_def_inode_operations;
/*

2
fs/proc/inode.c
Fájl megtekintése

@@ -420,7 +420,7 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
if (inode) {
inode->i_ino = de->low_ino;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
PROC_I(inode)->pde = de;
if (is_empty_pde(de)) {

2
fs/proc/proc_sysctl.c
Fájl megtekintése

@@ -444,7 +444,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
ei->sysctl = head;
ei->sysctl_entry = table;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
inode->i_mode = table->mode;
if (!S_ISDIR(table->mode)) {
inode->i_mode |= S_IFREG;

2
fs/proc/self.c
Fájl megtekintése

@@ -56,7 +56,7 @@ int proc_setup_self(struct super_block *s)
struct inode *inode = new_inode_pseudo(s);
if (inode) {
inode->i_ino = self_inum;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
inode->i_mode = S_IFLNK | S_IRWXUGO;
inode->i_uid = GLOBAL_ROOT_UID;
inode->i_gid = GLOBAL_ROOT_GID;

2
fs/proc/thread_self.c
Fájl megtekintése

@@ -58,7 +58,7 @@ int proc_setup_thread_self(struct super_block *s)
struct inode *inode = new_inode_pseudo(s);
if (inode) {
inode->i_ino = thread_self_inum;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
inode->i_mode = S_IFLNK | S_IRWXUGO;
inode->i_uid = GLOBAL_ROOT_UID;
inode->i_gid = GLOBAL_ROOT_GID;