From 4413d05bd742f879a6af71206265791ff76070bb Mon Sep 17 00:00:00 2001
From: Christian Ambach <christian.ambach@de.ibm.com>
Date: Fri, 8 Oct 2010 13:15:57 +0200
Subject: [PATCH] s3:vfs:gpfs convert sharemodes/leases parameter

convert gpfs:sharemodes and gpfs:leases parameters from a global setting
to a per share setting

cherry-picked from 22018b8b887c2677d30bbb4589f800197edf0e98
---
 source3/modules/gpfs.c     | 12 --------
 source3/modules/vfs_gpfs.c | 72 ++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 64 insertions(+), 20 deletions(-)

diff --git a/source3/modules/gpfs.c b/source3/modules/gpfs.c
index e05980888b8..c8fb88d92ee 100644
--- a/source3/modules/gpfs.c
+++ b/source3/modules/gpfs.c
@@ -24,8 +24,6 @@
 #include "gpfs_gpl.h"
 #include "vfs_gpfs.h"
 
-static bool gpfs_share_modes;
-static bool gpfs_leases;
 static bool gpfs_getrealfilename;
 static bool gpfs_winattr;
 
@@ -47,10 +45,6 @@ bool set_gpfs_sharemode(files_struct *fsp, uint32 access_mask,
 	unsigned int deny = GPFS_DENY_NONE;
 	int result;
 
-	if (!gpfs_share_modes) {
-		return True;
-	}
-
 	if (gpfs_set_share_fn == NULL) {
 		return False;
 	}
@@ -96,10 +90,6 @@ int set_gpfs_lease(int fd, int leasetype)
 {
 	int gpfs_type = GPFS_LEASE_NONE;
 
-	if (!gpfs_leases) {
-		return True;
-	}
-
 	if (gpfs_set_lease_fn == NULL) {
 		errno = EINVAL;
 		return -1;
@@ -249,8 +239,6 @@ void init_gpfs(void)
         init_gpfs_function(&gpfs_get_winattrs_fn,"gpfs_get_winattrs");
 
 
-	gpfs_share_modes = lp_parm_bool(-1, "gpfs", "sharemodes", True);
-	gpfs_leases      = lp_parm_bool(-1, "gpfs", "leases", True);
 	gpfs_getrealfilename = lp_parm_bool(-1, "gpfs", "getrealfilename",
 					    True);
 	gpfs_winattr = lp_parm_bool(-1, "gpfs", "winattr", False);
diff --git a/source3/modules/vfs_gpfs.c b/source3/modules/vfs_gpfs.c
index 0c28408448d..6ae562feade 100644
--- a/source3/modules/vfs_gpfs.c
+++ b/source3/modules/vfs_gpfs.c
@@ -30,18 +30,29 @@
 #include "nfs4_acls.h"
 #include "vfs_gpfs.h"
 
+struct gpfs_config_data {
+	bool sharemodes;
+	bool leases;
+};
+
+
 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp, 
 				 uint32 share_mode, uint32 access_mask)
 {
 
+	struct gpfs_config_data *config;
+
+	SMB_VFS_HANDLE_GET_DATA(handle, config,
+				struct gpfs_config_data,
+				return -1);
+
 	START_PROFILE(syscall_kernel_flock);
 
 	kernel_flock(fsp->fh->fd, share_mode, access_mask);
 
-	if (!set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
-
+	if (config->sharemodes
+		&& !set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
 		return -1;
-
 	}
 
 	END_PROFILE(syscall_kernel_flock);
@@ -51,7 +62,14 @@ static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
 
 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
 {
-	if ((fsp->fh != NULL) && (fsp->fh->fd != -1)) {
+
+	struct gpfs_config_data *config;
+
+	SMB_VFS_HANDLE_GET_DATA(handle, config,
+				struct gpfs_config_data,
+				return -1);
+
+	if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
 		set_gpfs_sharemode(fsp, 0, 0);
 	}
 
@@ -61,16 +79,23 @@ static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp, 
 			     int leasetype)
 {
-	int ret;
+	struct gpfs_config_data *config;
+	int ret=0;
+
+	SMB_VFS_HANDLE_GET_DATA(handle, config,
+				struct gpfs_config_data,
+				return -1);
 
 	START_PROFILE(syscall_linux_setlease);
 
-	if ( linux_set_lease_sighandler(fsp->fh->fd) == -1)
+	if (linux_set_lease_sighandler(fsp->fh->fd) == -1)
 		return -1;
 
-	ret = set_gpfs_lease(fsp->fh->fd,leasetype);
+	if (config->leases) {
+		ret = set_gpfs_lease(fsp->fh->fd,leasetype);
+	}
 
-	if ( ret < 0 ) {
+	if (ret < 0) {
 		/* This must have come from GPFS not being available */
 		/* or some other error, hence call the default */
 		ret = linux_setlease(fsp->fh->fd, leasetype);
@@ -1116,7 +1141,38 @@ static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
 
 }
 
+int vfs_gpfs_connect(struct vfs_handle_struct *handle, const char *service,
+			const char *user)
+{
+	struct gpfs_config_data *config;
+	int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
+
+	if (ret < 0) {
+		return ret;
+	}
+
+	config = talloc_zero(handle->conn, struct gpfs_config_data);
+	if (!config) {
+		SMB_VFS_NEXT_DISCONNECT(handle);
+		DEBUG(0, ("talloc_zero() failed\n")); return -1;
+	}
+
+	config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
+					"sharemodes", true);
+
+	config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
+					"leases", true);
+
+	SMB_VFS_HANDLE_SET_DATA(handle, config,
+				NULL, struct syncops_config_data,
+				return -1);
+
+	return 0;
+}
+
+
 static struct vfs_fn_pointers vfs_gpfs_fns = {
+	.connect_fn = vfs_gpfs_connect,
 	.kernel_flock = vfs_gpfs_kernel_flock,
         .linux_setlease = vfs_gpfs_setlease,
         .get_real_filename = vfs_gpfs_get_real_filename,
-- 
2.11.4.GIT