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Add nofail fstab option

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This option allows fs_mgr to ignore mount errors on an optional
partition to allow booting to continue.

Bug: 28071890
Change-Id: I71a2b3c1c573297cab18884b4c4bd7c27ced2901
This commit is contained in:
Daniel Rosenberg 2016-04-07 20:10:25 -07:00
parent 9bf0b815ad
commit d38e3c522c
4 changed files with 20 additions and 5 deletions
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17
fs_mgr/fs_mgr.c
View file

@ -626,11 +626,18 @@ int fs_mgr_mount_all(struct fstab *fstab)
}
encryptable = FS_MGR_MNTALL_DEV_MIGHT_BE_ENCRYPTED;
} else {
ERROR("Failed to mount an un-encryptable or wiped partition on"
"%s at %s options: %s error: %s\n",
fstab->recs[attempted_idx].blk_device, fstab->recs[attempted_idx].mount_point,
fstab->recs[attempted_idx].fs_options, strerror(mount_errno));
++error_count;
if (fs_mgr_is_nofail(&fstab->recs[attempted_idx])) {
ERROR("Ignoring failure to mount an un-encryptable or wiped partition on"
"%s at %s options: %s error: %s\n",
fstab->recs[attempted_idx].blk_device, fstab->recs[attempted_idx].mount_point,
fstab->recs[attempted_idx].fs_options, strerror(mount_errno));
} else {
ERROR("Failed to mount an un-encryptable or wiped partition on"
"%s at %s options: %s error: %s\n",
fstab->recs[attempted_idx].blk_device, fstab->recs[attempted_idx].mount_point,
fstab->recs[attempted_idx].fs_options, strerror(mount_errno));
++error_count;
}
continue;
}
}

6
fs_mgr/fs_mgr_fstab.c
View file

@ -74,6 +74,7 @@ static struct flag_list fs_mgr_flags[] = {
{ "noemulatedsd", MF_NOEMULATEDSD },
{ "notrim", MF_NOTRIM },
{ "formattable", MF_FORMATTABLE },
{ "nofail", MF_NOFAIL },
{ "defaults", 0 },
{ 0, 0 },
};
@ -480,3 +481,8 @@ int fs_mgr_is_formattable(struct fstab_rec *fstab)
{
return fstab->fs_mgr_flags & (MF_FORMATTABLE);
}
int fs_mgr_is_nofail(struct fstab_rec *fstab)
{
return fstab->fs_mgr_flags & MF_NOFAIL;
}

1
fs_mgr/fs_mgr_priv.h
View file

@ -79,6 +79,7 @@
#define MF_NOTRIM 0x1000
#define MF_FILEENCRYPTION 0x2000
#define MF_FORMATTABLE 0x4000
#define MF_NOFAIL 0x40000
#define DM_BUF_SIZE 4096

1
fs_mgr/include/fs_mgr.h
View file

@ -105,6 +105,7 @@ int fs_mgr_is_file_encrypted(const struct fstab_rec *fstab);
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_swapon_all(struct fstab *fstab);
int fs_mgr_do_format(struct fstab_rec *fstab);