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Date: Tue, 24 Jul 2007 16:35:07 +0530
From: Girish Shilamkar <girish@...sterfs.com>
To: Ext4 Mailing List <linux-ext4@...r.kernel.org>
Cc: Andreas Dilger <adilger@...sterfs.com>,
Theodore Tso <tytso@....edu>
Subject: [Patch 10/13] SLES10 patch which adds -m flag support to fsck
SLES10 patch which adds -m flag support to fsck
Signed-off-by: Andreas Dilger <adilger@...sterfs.com>
Signed-off-by: Girish Shilamkar <girish@...sterfs.com>
Index: e2fsprogs-1.40.1/misc/fsck.8.in
===================================================================
--- e2fsprogs-1.40.1.orig/misc/fsck.8.in
+++ e2fsprogs-1.40.1/misc/fsck.8.in
@@ -180,6 +180,10 @@ option,
will use the specified filesystem type. If this type is not
available, then the default file system type (currently ext2) is used.
.TP
+.B \-m
+Do not check mounted filesystems and return an exit code of 0
+for mounted filesystems.
+.TP
.B \-A
Walk through the
.I /etc/fstab
Index: e2fsprogs-1.40.1/misc/fsck.c
===================================================================
--- e2fsprogs-1.40.1.orig/misc/fsck.c
+++ e2fsprogs-1.40.1/misc/fsck.c
@@ -103,6 +103,7 @@ int noexecute = 0;
int serialize = 0;
int skip_root = 0;
int like_mount = 0;
+int ignore_mounted = 0;
int notitle = 0;
int parallel_root = 0;
int progress = 0;
@@ -793,7 +794,7 @@ static void compile_fs_type(char *fs_typ
#if 0
printf("Adding %s to list (type %d).\n", s, cmp->type[num]);
#endif
- cmp->list[num++] = string_copy(s);
+ cmp->list[num++] = string_copy(s);
s = strtok(NULL, ",");
}
free(list);
@@ -819,7 +820,7 @@ static int opt_in_list(char *opt, char *
}
s = strtok(NULL, ",");
}
- free(list);
+ free(list);
return 0;
}
@@ -855,6 +856,56 @@ static int fs_match(struct fs_info *fs,
return (cmp->negate ? !ret : ret);
}
+/* Check to see whether a filesystem is already mounted */
+static int is_mounted(struct fs_info *fs)
+{
+ struct stat st_buf;
+ dev_t fs_rdev;
+ char *testdir;
+ int retval = 0;
+
+ if (!fs->mountpt) {
+ /*
+ * We have already read /proc/mounts
+ * so any device without a mountpoint
+ * is indeed not mounted.
+ */
+ return 0;
+ }
+
+ if (!strcmp(fs->mountpt,"/")) {
+ /* Root should be always mounted */
+ return 1;
+ }
+
+ if (stat(fs->mountpt, &st_buf) < 0)
+ return 0;
+
+ if (!S_ISDIR(st_buf.st_mode)) {
+ /* This is not a directory, cannot be mounted */
+ return 0;
+ }
+
+ fs_rdev = st_buf.st_dev;
+
+ /* Compare with the upper directory */
+ testdir = malloc(strlen(fs->mountpt) + 4);
+ strcpy(testdir,fs->mountpt);
+ if (fs->mountpt[strlen(fs->mountpt) - 1] == '/')
+ strcat(testdir,"..");
+ else
+ strcat(testdir,"/..");
+
+ if (stat(testdir, &st_buf) == 0) {
+ if (st_buf.st_dev != fs_rdev) {
+ retval = 1;
+ }
+ }
+ free(testdir);
+
+ return retval;
+}
+
/* Check if we should ignore this filesystem. */
static int ignore(struct fs_info *fs)
{
@@ -1002,6 +1053,15 @@ static int check_all(NOARGS)
not_done_yet++;
continue;
}
+ if (ignore_mounted) {
+ /*
+ * Ignore mounted devices.
+ */
+ if (is_mounted(fs)) {
+ fs->flags |= FLAG_DONE;
+ continue;
+ }
+ }
/*
* If a filesystem on a particular device has
* already been spawned, then we need to defer
@@ -1179,6 +1239,9 @@ static void PRS(int argc, char *argv[])
case 'P':
parallel_root++;
break;
+ case 'm':
+ ignore_mounted++;
+ break;
case 's':
serialize++;
break;
@@ -1254,6 +1317,10 @@ int main(int argc, char *argv[])
fstab = _PATH_MNTTAB;
load_fs_info(fstab);
+ /* Load info from /proc/mounts, too */
+ if (ignore_mounted)
+ load_fs_info("/proc/mounts");
+
/* Update our search path to include uncommon directories. */
if (oldpath) {
fsck_path = malloc (strlen (fsck_prefix_path) + 1 +
@@ -1296,6 +1363,14 @@ int main(int argc, char *argv[])
if (!fs)
continue;
}
+ if (ignore_mounted) {
+ /*
+ * Ignore mounted devices.
+ */
+ if (is_mounted(fs)) {
+ continue;
+ }
+ }
fsck_device(fs, interactive);
if (serialize ||
(max_running && (num_running >= max_running))) {
-
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