diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2010-05-13 17:36:36 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-05-13 17:36:36 -0400 |
| commit | 177839e2454dcc298244481da9c72a19b41836be (patch) | |
| tree | 0e998a24865b468bbe4c893494b8db06c2e3ee18 /e2fsck/unix.c | |
| parent | 65d71894c9f254ea1a5eb836e454dd263b13a867 (diff) | |
| download | e2fsprogs-177839e2454dcc298244481da9c72a19b41836be.tar.gz | |
e2fsck: Skip time-based checks if the time looks insane or broken_system_clock
There are broken embedded devices that have system clocks that always
reset to January 1, 1970 whenever they boot (even if no power is
lost). There are also systems that have super cheap clock crystals
that can be very inaccurate. So if the option broken_system_clock is
given, disable all time based checks. E2fsck will also try to detect
incorrect system clock times, and automatically mark the system clock
as insane.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'e2fsck/unix.c')
| -rw-r--r-- | e2fsck/unix.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/e2fsck/unix.c b/e2fsck/unix.c index fd62ce5d..383c651f 100644 --- a/e2fsck/unix.c +++ b/e2fsck/unix.c @@ -291,8 +291,13 @@ static void check_if_skip(e2fsck_t ctx) long next_check; int batt = is_on_batt(); int defer_check_on_battery; + int broken_system_clock; time_t lastcheck; + profile_get_boolean(ctx->profile, "options", "broken_system_clock", + 0, 0, &broken_system_clock); + if (ctx->flags & E2F_FLAG_TIME_INSANE) + broken_system_clock = 1; profile_get_boolean(ctx->profile, "options", "defer_check_on_battery", 0, 1, &defer_check_on_battery); @@ -320,11 +325,12 @@ static void check_if_skip(e2fsck_t ctx) if (batt && (fs->super->s_mnt_count < (unsigned) fs->super->s_max_mnt_count*2)) reason = 0; - } else if (fs->super->s_checkinterval && (ctx->now < lastcheck)) { + } else if (!broken_system_clock && fs->super->s_checkinterval && + (ctx->now < lastcheck)) { reason = _(" has filesystem last checked time in the future"); if (batt) reason = 0; - } else if (fs->super->s_checkinterval && + } else if (!broken_system_clock && fs->super->s_checkinterval && ((ctx->now - lastcheck) >= ((time_t) fs->super->s_checkinterval))) { reason = _(" has gone %u days without being checked"); @@ -350,7 +356,7 @@ static void check_if_skip(e2fsck_t ctx) if (next_check <= 0) next_check = 1; } - if (fs->super->s_checkinterval && + if (!broken_system_clock && fs->super->s_checkinterval && ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval)) next_check = 1; if (next_check <= 5) { @@ -1433,7 +1439,8 @@ no_journal: } else sb->s_state &= ~EXT2_VALID_FS; sb->s_mnt_count = 0; - sb->s_lastcheck = ctx->now; + if (!(ctx->flags & E2F_FLAG_TIME_INSANE)) + sb->s_lastcheck = ctx->now; ext2fs_mark_super_dirty(fs); } } |