Fix support for configure --enable-jbd-debug

[tools/e2fsprogs.git] / misc / e4defrag.c

diff --git a/misc/e4defrag.c b/misc/e4defrag.c
index d0eac60..1d1b4f4 100644 (file)
--- a/misc/e4defrag.c
+++ b/misc/e4defrag.c
@@ -193,10 +193,6 @@ static struct frag_statistic_ino   frag_rank[SHOW_FRAG_FILES];
 #error posix_fadvise not available!
 #endif
 
-#ifndef HAVE_SYNC_FILE_RANGE
-#error sync_file_range not available!
-#endif /* ! HAVE_SYNC_FILE_RANGE */
-
 #ifndef HAVE_FALLOCATE64
 #error fallocate64 not available!
 #endif /* ! HAVE_FALLOCATE64 */
@@ -387,8 +383,10 @@ static int page_in_core(int fd, struct move_extent defrag_data,
        *page_num = 0;
        *page_num = (length + pagesize - 1) / pagesize;
        *vec = (unsigned char *)calloc(*page_num, 1);
-       if (*vec == NULL)
+       if (*vec == NULL) {
+               munmap(page, length);
                return -1;
+       }
 
        /* Get information on whether pages are in core */
        if (mincore(page, (size_t)length, *vec) == -1 ||
@@ -426,10 +424,12 @@ static int defrag_fadvise(int fd, struct move_extent defrag_data,
        offset = (loff_t)defrag_data.orig_start * block_size;
        offset = (offset / pagesize) * pagesize;
 
+#ifdef HAVE_SYNC_FILE_RANGE
        /* Sync file for fadvise process */
        if (sync_file_range(fd, offset,
                (loff_t)pagesize * page_num, sync_flag) < 0)
                return -1;
+#endif
 
        /* Try to release buffer cache which this process used,
         * then other process can use the released buffer