</varlistentry>
<varlistentry>
+ <term>gpfs:prealloc = [ yes | no ]</term>
+ <listitem>
+ <para>
+ If set to yes the gpfs_prealloc function will be used in the
+ fallocate callback when appropriate. If set to no gpfs_prealloc
+ will not be used. In both cases the system and libc calls are
+ avoided.
+ </para>
+
+ <itemizedlist>
+ <listitem><para>
+ <command>yes (default)</command> - Use gpfs_prealloc for the
+ fallocate callback.
+ </para></listitem>
+ <listitem><para>
+ <command>no</command> - Do not use gpfs_prealloc for the
+ fallocate callback.
+ </para></listitem>
+ </itemizedlist>
+ </listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+
<term>nfs4:mode = [ simple | special ]</term>
<listitem>
<para>
static int (*gpfs_set_winattrs_path_fn)(char *pathname, int flags, struct gpfs_winattr *attrs);
static int (*gpfs_get_winattrs_path_fn)(char *pathname, struct gpfs_winattr *attrs);
static int (*gpfs_get_winattrs_fn)(int fd, struct gpfs_winattr *attrs);
+static int (*gpfs_prealloc_fn)(int fd, gpfs_off64_t startOffset, gpfs_off64_t bytesToPrealloc);
static int (*gpfs_ftruncate_fn)(int fd, gpfs_off64_t length);
static int (*gpfs_lib_init_fn)(int flags);
static int (*gpfs_quotactl_fn)(char *pathname, int cmd, int id, void *bufferP);
return gpfs_get_winattrs_fn(fd, attrs);
}
+int smbd_gpfs_prealloc(int fd, gpfs_off64_t start, gpfs_off64_t bytes)
+{
+ if (gpfs_prealloc_fn == NULL) {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ return gpfs_prealloc_fn(fd, start, bytes);
+}
+
int set_gpfs_winattrs(char *pathname,int flags,struct gpfs_winattr *attrs)
{
if (gpfs_set_winattrs_path_fn == NULL) {
init_gpfs_function(&gpfs_get_winattrs_path_fn,"gpfs_get_winattrs_path");
init_gpfs_function(&gpfs_set_winattrs_path_fn,"gpfs_set_winattrs_path");
init_gpfs_function(&gpfs_get_winattrs_fn,"gpfs_get_winattrs");
+ init_gpfs_function(&gpfs_prealloc_fn, "gpfs_prealloc");
init_gpfs_function(&gpfs_ftruncate_fn, "gpfs_ftruncate");
init_gpfs_function(&gpfs_lib_init_fn,"gpfs_lib_init");
init_gpfs_function(&gpfs_quotactl_fn, "gpfs_quotactl");
bool ftruncate;
bool getrealfilename;
bool dfreequota;
+ bool prealloc;
};
}
+int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
+ struct files_struct *fsp, enum vfs_fallocate_mode mode,
+ SMB_OFF_T offset, SMB_OFF_T len)
+{
+ int ret;
+ struct gpfs_config_data *config;
+
+ SMB_VFS_HANDLE_GET_DATA(handle, config,
+ struct gpfs_config_data,
+ return -1);
+
+ if (!config->prealloc) {
+ /* you should better not run fallocate() on GPFS at all */
+ errno = ENOTSUP;
+ return -1;
+ }
+
+ if (mode == VFS_FALLOCATE_KEEP_SIZE) {
+ DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
+ errno = ENOTSUP;
+ return -1;
+ }
+
+ ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
+
+ if (ret == -1 && errno != ENOSYS) {
+ DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
+ } else if (ret == -1 && errno == ENOSYS) {
+ DEBUG(10, ("GPFS prealloc not supported.\n"));
+ } else {
+ DEBUG(10, ("GPFS prealloc succeeded.\n"));
+ }
+
+ return ret;
+}
+
static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
SMB_OFF_T len)
{
config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
"dfreequota", false);
+ config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
+ "prealloc", true);
+
SMB_VFS_HANDLE_SET_DATA(handle, config,
NULL, struct gpfs_config_data,
return -1);
.is_offline_fn = vfs_gpfs_is_offline,
.aio_force_fn = vfs_gpfs_aio_force,
.sendfile_fn = vfs_gpfs_sendfile,
+ .fallocate_fn = vfs_gpfs_fallocate,
.open_fn = vfs_gpfs_open,
.ftruncate_fn = vfs_gpfs_ftruncate
};
int smbd_fget_gpfs_winattrs(int fd, struct gpfs_winattr *attrs);
int get_gpfs_winattrs(char * pathname,struct gpfs_winattr *attrs);
int set_gpfs_winattrs(char * pathname,int flags,struct gpfs_winattr *attrs);
+int smbd_gpfs_prealloc(int fd, gpfs_off64_t start, gpfs_off64_t bytes);
int smbd_gpfs_ftruncate(int fd, gpfs_off64_t length);
int get_gpfs_quota(const char *pathname, int type, int id,
struct gpfs_quotaInfo *qi);