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Commit d61a7e2d authored by Wei Wang's avatar Wei Wang
Browse files

Split fstab mount into 2 phases 

This will make it possible to start some key services before mounting
data partition

Bug: 30118894
Change-Id: Ia9f8cc035de6cc0df9a61605864915efa0266d7f
(cherry picked from commit abfbec34)
parent 3cc284a6

fs_mgr/fs_mgr.c

+5 −3
Original line number Diff line number Diff line
@@ -486,7 +486,7 @@ static int handle_encryptable(const struct fstab_rec* rec) 
 * first successful mount.

 * Returns -1 on error, and  FS_MGR_MNTALL_* otherwise.

 */

int fs_mgr_mount_all(struct fstab *fstab)

int fs_mgr_mount_all(struct fstab *fstab, int mount_mode)

{

    int i = 0;

    int encryptable = FS_MGR_MNTALL_DEV_NOT_ENCRYPTABLE;
@@ -500,8 +500,10 @@ int fs_mgr_mount_all(struct fstab *fstab) 
    }



    for (i = 0; i < fstab->num_entries; i++) {

        /* Don't mount entries that are managed by vold */

        if (fstab->recs[i].fs_mgr_flags & (MF_VOLDMANAGED | MF_RECOVERYONLY)) {

        /* Don't mount entries that are managed by vold or not for the mount mode*/

        if ((fstab->recs[i].fs_mgr_flags & (MF_VOLDMANAGED | MF_RECOVERYONLY)) ||

             ((mount_mode == MOUNT_MODE_LATE) && !fs_mgr_is_latemount(&fstab->recs[i])) ||

             ((mount_mode == MOUNT_MODE_EARLY) && fs_mgr_is_latemount(&fstab->recs[i]))) {

            continue;

        }

fs_mgr/fs_mgr_fstab.c

+6 −0
Original line number Diff line number Diff line
@@ -78,6 +78,7 @@ static struct flag_list fs_mgr_flags[] = { 
    { "formattable", MF_FORMATTABLE },

    { "slotselect",  MF_SLOTSELECT },

    { "nofail",      MF_NOFAIL },

    { "latemount",   MF_LATEMOUNT },

    { "defaults",    0 },

    { 0,             0 },

};
@@ -553,3 +554,8 @@ int fs_mgr_is_nofail(struct fstab_rec *fstab) 
{

    return fstab->fs_mgr_flags & MF_NOFAIL;

}



int fs_mgr_is_latemount(struct fstab_rec *fstab)

{

    return fstab->fs_mgr_flags & MF_LATEMOUNT;

}

fs_mgr/fs_mgr_main.c

+1 −1
Original line number Diff line number Diff line
@@ -95,7 +95,7 @@ int main(int argc, char *argv[]) 
    fstab = fs_mgr_read_fstab(fstab_file);



    if (a_flag) {

        return fs_mgr_mount_all(fstab);

        return fs_mgr_mount_all(fstab, MOUNT_MODE_DEFAULT);

    } else if (n_flag) {

        return fs_mgr_do_mount(fstab, n_name, n_blk_dev, 0);

    } else if (u_flag) {

fs_mgr/fs_mgr_priv.h

+2 −1
Original line number Diff line number Diff line
@@ -83,6 +83,7 @@ __BEGIN_DECLS 
#define MF_FORMATTABLE  0x4000

#define MF_SLOTSELECT   0x8000

#define MF_FORCEFDEORFBE 0x10000

#define MF_LATEMOUNT    0x20000

#define MF_NOFAIL       0x40000



#define DM_BUF_SIZE 4096

fs_mgr/include/fs_mgr.h

+9 −1
Original line number Diff line number Diff line
@@ -42,6 +42,13 @@ enum verity_mode { 
    VERITY_MODE_DEFAULT = VERITY_MODE_RESTART

};



// Mount modes

enum mount_mode {

    MOUNT_MODE_DEFAULT = 0,

    MOUNT_MODE_EARLY = 1,

    MOUNT_MODE_LATE = 2

};



/*

 * The entries must be kept in the same order as they were seen in the fstab.

 * Unless explicitly requested, a lookup on mount point should always
@@ -85,7 +92,7 @@ void fs_mgr_free_fstab(struct fstab *fstab); 
#define FS_MGR_MNTALL_DEV_NOT_ENCRYPTED 1

#define FS_MGR_MNTALL_DEV_NOT_ENCRYPTABLE 0

#define FS_MGR_MNTALL_FAIL (-1)

int fs_mgr_mount_all(struct fstab *fstab);

int fs_mgr_mount_all(struct fstab *fstab, int mount_mode);



#define FS_MGR_DOMNT_FAILED (-1)

#define FS_MGR_DOMNT_BUSY (-2)
@@ -113,6 +120,7 @@ int fs_mgr_is_noemulatedsd(const struct fstab_rec *fstab); 
int fs_mgr_is_notrim(struct fstab_rec *fstab);

int fs_mgr_is_formattable(struct fstab_rec *fstab);

int fs_mgr_is_nofail(struct fstab_rec *fstab);

int fs_mgr_is_latemount(struct fstab_rec *fstab);

int fs_mgr_swapon_all(struct fstab *fstab);



int fs_mgr_do_format(struct fstab_rec *fstab, bool reserve_footer);