staging: lustre: libcfs: remove MMSPACE macros

Another abstraction that is not needed.

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245
Reviewed-on: http://review.whamcloud.com/13841
Reviewed-by: frank zago <fzago@cray.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h
index 12fde3c..c4b4284 100644 (file)
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h
+++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h
@@ -65,9 +65,4 @@
 #define NUM_CACHEPAGES totalram_pages
 #endif
 
-#define DECL_MMSPACE           mm_segment_t __oldfs
-#define MMSPACE_OPEN \
-       do { __oldfs = get_fs(); set_fs(get_ds()); } while (0)
-#define MMSPACE_CLOSE         set_fs(__oldfs)
-
 #endif /* __LINUX_CFS_MEM_H__ */

diff --git a/drivers/staging/lustre/lnet/libcfs/tracefile.c b/drivers/staging/lustre/lnet/libcfs/tracefile.c
index ec3bc04..5169597 100644 (file)
--- a/drivers/staging/lustre/lnet/libcfs/tracefile.c
+++ b/drivers/staging/lustre/lnet/libcfs/tracefile.c
@@ -707,10 +707,9 @@ int cfs_tracefile_dump_all_pages(char *filename)
        struct cfs_trace_page   *tage;
        struct cfs_trace_page   *tmp;
        char                    *buf;
+       mm_segment_t __oldfs;
        int rc;
 
-       DECL_MMSPACE;
-
        cfs_tracefile_write_lock();
 
        filp = filp_open(filename, O_CREAT | O_EXCL | O_WRONLY | O_LARGEFILE,
@@ -729,11 +728,12 @@ int cfs_tracefile_dump_all_pages(char *filename)
                rc = 0;
                goto close;
        }
+       __oldfs = get_fs();
+       set_fs(get_ds());
 
        /* ok, for now, just write the pages.  in the future we'll be building
         * iobufs with the pages and calling generic_direct_IO
         */
-       MMSPACE_OPEN;
        list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
                __LASSERT_TAGE_INVARIANT(tage);
 
@@ -752,7 +752,7 @@ int cfs_tracefile_dump_all_pages(char *filename)
                list_del(&tage->linkage);
                cfs_tage_free(tage);
        }
-       MMSPACE_CLOSE;
+       set_fs(__oldfs);
        rc = vfs_fsync(filp, 1);
        if (rc)
                pr_err("sync returns %d\n", rc);
@@ -986,13 +986,12 @@ static int tracefiled(void *arg)
        struct tracefiled_ctl *tctl = arg;
        struct cfs_trace_page *tage;
        struct cfs_trace_page *tmp;
+       mm_segment_t __oldfs;
        struct file *filp;
        char *buf;
        int last_loop = 0;
        int rc;
 
-       DECL_MMSPACE;
-
        /* we're started late enough that we pick up init's fs context */
        /* this is so broken in uml?  what on earth is going on? */
 
@@ -1025,8 +1024,8 @@ static int tracefiled(void *arg)
                        __LASSERT(list_empty(&pc.pc_pages));
                        goto end_loop;
                }
-
-               MMSPACE_OPEN;
+               __oldfs = get_fs();
+               set_fs(get_ds());
 
                list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
                        static loff_t f_pos;
@@ -1051,7 +1050,7 @@ static int tracefiled(void *arg)
                                break;
                        }
                }
-               MMSPACE_CLOSE;
+               set_fs(__oldfs);
 
                filp_close(filp, NULL);
                put_pages_on_daemon_list(&pc);