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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-06-16 01:56:23 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-06-16 02:08:34 -0400 |
| commit | 70d45cdb664390a5573c05f1eecc8432dcc6581b (patch) | |
| tree | 6ab7b1d46459aa7c872a156d36ffc6416e8c9464 | |
| parent | a50e4a02ad6957ef6f77cccaa8ef6a337f1856af (diff) | |
| download | linux-70d45cdb664390a5573c05f1eecc8432dcc6581b.tar.gz linux-70d45cdb664390a5573c05f1eecc8432dcc6581b.tar.bz2 linux-70d45cdb664390a5573c05f1eecc8432dcc6581b.zip | |
ufs: don't touch mtime/ctime of directory being moved
See "ext2: Do not update mtime of a moved directory" (and followup in
"ext2: fix unbalanced kmap()/kunmap()") for background; this is UFS
equivalent - the same problem exists here.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/ufs/dir.c | 6 | ||||
| -rw-r--r-- | fs/ufs/namei.c | 9 | ||||
| -rw-r--r-- | fs/ufs/ufs.h | 2 |
3 files changed, 12 insertions, 5 deletions
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c index 1bfe8cabff0f..862d284d438e 100644 --- a/fs/ufs/dir.c +++ b/fs/ufs/dir.c @@ -87,7 +87,8 @@ ino_t ufs_inode_by_name(struct inode *dir, const struct qstr *qstr) /* Releases the page */ void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, - struct page *page, struct inode *inode) + struct page *page, struct inode *inode, + bool update_times) { loff_t pos = page_offset(page) + (char *) de - (char *) page_address(page); @@ -103,7 +104,8 @@ void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, err = ufs_commit_chunk(page, pos, len); ufs_put_page(page); - dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; + if (update_times) + dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; mark_inode_dirty(dir); } diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c index 3429079c11e2..d3fdfa22add5 100644 --- a/fs/ufs/namei.c +++ b/fs/ufs/namei.c @@ -276,7 +276,7 @@ static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry, new_de = ufs_find_entry(new_dir, &new_dentry->d_name, &new_page); if (!new_de) goto out_dir; - ufs_set_link(new_dir, new_de, new_page, old_inode); + ufs_set_link(new_dir, new_de, new_page, old_inode, 1); new_inode->i_ctime = CURRENT_TIME_SEC; if (dir_de) drop_nlink(new_inode); @@ -299,7 +299,12 @@ static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry, mark_inode_dirty(old_inode); if (dir_de) { - ufs_set_link(old_inode, dir_de, dir_page, new_dir); + if (old_dir != new_dir) + ufs_set_link(old_inode, dir_de, dir_page, new_dir, 0); + else { + kunmap(dir_page); + page_cache_release(dir_page); + } inode_dec_link_count(old_dir); } return 0; diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h index cf6368d42d4a..2e31ea2e35a3 100644 --- a/fs/ufs/ufs.h +++ b/fs/ufs/ufs.h @@ -106,7 +106,7 @@ extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page extern int ufs_empty_dir (struct inode *); extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, - struct page *page, struct inode *inode); + struct page *page, struct inode *inode, bool update_times); /* file.c */ extern const struct inode_operations ufs_file_inode_operations; |