The description of this flag says "Don't sync attributes with the server". In other words: always use the attributes cached in the kernel and don't send network or local messages to refresh the attributes.
Signed-off-by: Miklos Szeredi <[email protected]> Cc: Steve French <[email protected]> --- fs/cifs/inode.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index a8693632235f..982ba2e4f549 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -2003,22 +2003,24 @@ int cifs_getattr(const struct path *path, struct kstat *stat, struct inode *inode = d_inode(dentry); int rc; - /* - * We need to be sure that all dirty pages are written and the server - * has actual ctime, mtime and file length. - */ - if (!CIFS_CACHE_READ(CIFS_I(inode)) && inode->i_mapping && - inode->i_mapping->nrpages != 0) { - rc = filemap_fdatawait(inode->i_mapping); - if (rc) { - mapping_set_error(inode->i_mapping, rc); - return rc; + if (!(flags & AT_STATX_DONT_SYNC)) { + /* + * We need to be sure that all dirty pages are written and the + * server has actual ctime, mtime and file length. + */ + if (!CIFS_CACHE_READ(CIFS_I(inode)) && inode->i_mapping && + inode->i_mapping->nrpages != 0) { + rc = filemap_fdatawait(inode->i_mapping); + if (rc) { + mapping_set_error(inode->i_mapping, rc); + return rc; + } } - } - rc = cifs_revalidate_dentry_attr(dentry); - if (rc) - return rc; + rc = cifs_revalidate_dentry_attr(dentry); + if (rc) + return rc; + } generic_fillattr(inode, stat); stat->blksize = CIFS_MAX_MSGSIZE; -- 2.5.5
