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ovl: cleanup ovl_update_time()

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No need to mess with an alias, the upperdentry can be retrieved directly
from the overlay inode.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Miklos Szeredi 2018-04-12 12:04:50 +02:00
parent 3a291774d1
commit 8f35cf51cd
1 changed files with 10 additions and 16 deletions
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26
fs/overlayfs/inode.c
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@ -380,24 +380,18 @@ int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags)
int ovl_update_time(struct inode *inode, struct timespec *ts, int flags)
{
struct dentry *alias;
struct path upperpath;
if (flags & S_ATIME) {
struct ovl_fs *ofs = inode->i_sb->s_fs_info;
struct path upperpath = {
.mnt = ofs->upper_mnt,
.dentry = ovl_upperdentry_dereference(OVL_I(inode)),
};
if (!(flags & S_ATIME))
return 0;
alias = d_find_any_alias(inode);
if (!alias)
return 0;
ovl_path_upper(alias, &upperpath);
if (upperpath.dentry) {
touch_atime(&upperpath);
inode->i_atime = d_inode(upperpath.dentry)->i_atime;
if (upperpath.dentry) {
touch_atime(&upperpath);
inode->i_atime = d_inode(upperpath.dentry)->i_atime;
}
}
dput(alias);
return 0;
}