diff options
author | Rohith Surabattula <rohiths@microsoft.com> | 2021-09-17 18:14:26 +0000 |
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committer | Steve French <stfrench@microsoft.com> | 2021-09-17 16:39:53 -0500 |
commit | e3fc065682ebbbd15b0ce0036800f4acbf765d46 (patch) | |
tree | b31cbe6195fabc1ee80741264da61fadd72dfb2b /fs/cifs/misc.c | |
parent | 4c51de1e8f928a5b05248714d832d7d991ac319a (diff) | |
download | linux-e3fc065682ebbbd15b0ce0036800f4acbf765d46.tar.bz2 |
cifs: Deferred close performance improvements
During unlink/rename instead of closing all the deferred handles
under tcon, close only handles under the requested dentry.
Signed-off-by: Rohith Surabattula <rohiths@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/misc.c')
-rw-r--r-- | fs/cifs/misc.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index f4313935e734..05138f92d905 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -780,6 +780,43 @@ cifs_close_all_deferred_files(struct cifs_tcon *tcon) kfree(tmp_list); } } +void +cifs_close_deferred_file_under_dentry(struct cifs_tcon *tcon, const char *path) +{ + struct cifsFileInfo *cfile; + struct list_head *tmp; + struct file_list *tmp_list, *tmp_next_list; + struct list_head file_head; + void *page; + const char *full_path; + + INIT_LIST_HEAD(&file_head); + page = alloc_dentry_path(); + spin_lock(&tcon->open_file_lock); + list_for_each(tmp, &tcon->openFileList) { + cfile = list_entry(tmp, struct cifsFileInfo, tlist); + full_path = build_path_from_dentry(cfile->dentry, page); + if (strstr(full_path, path)) { + if (delayed_work_pending(&cfile->deferred)) { + if (cancel_delayed_work(&cfile->deferred)) { + tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC); + if (tmp_list == NULL) + break; + tmp_list->cfile = cfile; + list_add_tail(&tmp_list->list, &file_head); + } + } + } + } + spin_unlock(&tcon->open_file_lock); + + list_for_each_entry_safe(tmp_list, tmp_next_list, &file_head, list) { + _cifsFileInfo_put(tmp_list->cfile, true, false); + list_del(&tmp_list->list); + kfree(tmp_list); + } + free_dentry_path(page); +} /* parses DFS refferal V3 structure * caller is responsible for freeing target_nodes |