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UBIFS: Add ubifsumount command to unmount an active volume

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This new ubifsumount command allows the user to unmount a previously
mounted UBIFS volume.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2010-10-28 14:09:22 +02:00
parent 49733aa0b9
commit cb9c09d487
2 changed files with 32 additions and 1 deletions
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31
common/cmd_ubifs.c
View File

@ -33,12 +33,17 @@
#include <config.h>
#include <command.h>
#include "../fs/ubifs/ubifs.h"
static int ubifs_initialized;
static int ubifs_mounted;
extern struct super_block *ubifs_sb;
/* Prototypes */
int ubifs_init(void);
int ubifs_mount(char *vol_name);
void ubifs_umount(struct ubifs_info *c);
int ubifs_ls(char *dir_name);
int ubifs_load(char *filename, u32 addr, u32 size);
@ -67,6 +72,26 @@ int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
int do_ubifs_umount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc != 1)
return cmd_usage(cmdtp);
if (ubifs_initialized == 0) {
printf("No UBIFS volume mounted!\n");
return -1;
}
if (ubifs_sb)
ubifs_umount(ubifs_sb->s_fs_info);
ubifs_sb = NULL;
ubifs_mounted = 0;
ubifs_initialized = 0;
return 0;
}
int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *filename = "/";
@ -131,6 +156,12 @@ U_BOOT_CMD(
" - mount 'volume-name' volume"
);
U_BOOT_CMD(
ubifsumount, 1, 0, do_ubifs_umount,
"unmount UBIFS volume",
" - unmount current volume"
);
U_BOOT_CMD(
ubifsls, 2, 0, do_ubifs_ls,
"list files in a directory",

2
fs/ubifs/super.c
View File

@ -824,7 +824,7 @@ out_free:
* through mounting (error path cleanup function). So it has to make sure the
* resource was actually allocated before freeing it.
*/
static void ubifs_umount(struct ubifs_info *c)
void ubifs_umount(struct ubifs_info *c)
{
dbg_gen("un-mounting UBI device %d, volume %d", c->vi.ubi_num,
c->vi.vol_id);