| Message ID | 1505896805-12055-3-git-send-email-mszeredi@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Do you have any sample program/code to query with this flag? On Wed, Sep 20, 2017 at 3:39 AM, Miklos Szeredi <mszeredi@redhat.com> wrote: > 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 <mszeredi@redhat.com> > Cc: Steve French <sfrench@samba.org> > --- > 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 >
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;
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 <mszeredi@redhat.com> Cc: Steve French <sfrench@samba.org> --- fs/cifs/inode.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-)