hugetlb: allow sticky directory mount option

Allow sticky directory mount option for hugetlbfs. This allows admin to create a shared hugetlbfs mount point for multiple users, while prevent accidental file deletion that users may step on each other. It is similiar to default tmpfs mount option, or typical option used on /tmp. Signed-off-by: Ken Chen <[email protected]> Cc: Badari Pulavarty <[email protected]> Cc: Adam Litke <[email protected]> Cc: David Gibson <[email protected]> Cc: William Lee Irwin III <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
pscholl · Feb 5, 2008 · 75897d6 · 75897d6
1 parent b98938c
commit 75897d6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
@@ -768,7 +768,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
 		case Opt_mode:
 			if (match_octal(&args[0], &option))
  				goto bad_val;
-			pconfig->mode = option & 0777U;
+			pconfig->mode = option & 01777U;
 			break;
 
 		case Opt_size: {