Instead of assuming a partition seperator of "-part" this patch uses
access to check the file system for a partition seperator of "p" or
the absense of a partition seperator. If neither of these work the patch
defaults to "-part" like we had before this patch.
Ruediger Meier [Mon, 25 Jun 2018 13:08:55 +0000 (15:08 +0200)]
wipefs: add missing ifdef
Seen on OSX:
misc-utils/wipefs.c:822:5: warning: implicit declaration of function 'rereadpt' is invalid in C99 [-Wimplicit-function-declaration]
rereadpt(fd, devname);
Ruediger Meier [Mon, 25 Jun 2018 12:01:21 +0000 (14:01 +0200)]
ipcs,chmem: fix access() usage
Some mistakes happened lately when switching from path_exist()
to ul_path_access(). See f09a98de and 8ca31279.
This caused ipcs test failures when running i386 binaries on x86_64
hosts, because the syscall fallback was always used. That's why I
reviewed all similar changes and found another one in chmem.
Karel Zak [Fri, 25 May 2018 10:51:55 +0000 (12:51 +0200)]
lscpu: use new ul_path_* API
* use ul_path_* API for /sys/devices/system/cpu paths
* use ul_path_* API for /proc
* rename is_compatible() to is_devtree_compatible() as it works
with the devices tree only
Karel Zak [Wed, 9 May 2018 13:54:12 +0000 (15:54 +0200)]
lib/path: new implementation
The goal is to avoid duplicate code in path.c and sysfs.c and make it
possible to define prefix for paths for all sysfs and procfs based
utils. Now we have /proc snapshots (for tests) for lscpu only. It
would be nice to have the same (for sysfs) for lsblk and another tools.
* very simple API to read numbers, strings and symlinks
* based on openat()
pc = ul_new_path("/sys/block/sda");
ul_path_read_u64(pc, &size, "size");
ul_path_read_u64(pc, &lsz, "queue/logical_block_size");
* printf-like API to generate paths, for example:
ul_path_readf_u64(pc, &num, "sda%d/size", partno)
* allow to define prefix to redirect hardcoded paths to another
location, for example:
pc = ul_new_path("/sys/block/sda");
ul_path_set_prefix(pc, "/my/regression/dump");
ul_path_read_u64(pc, &num, "size");
to read /my/regression/dump/sys/block/sda/size
* allow to extend the API by "dialects", for example for sysfs:
pc = ul_new_path(NULL);
sysfs_blkdev_init_path(pc, devno, NULL);
and use ul_path_* functions to read from @pc initialized by
sysfs_blkdev_init_path()
Sami Kerola [Sat, 26 May 2018 08:37:47 +0000 (09:37 +0100)]
more: remove function like preprocessor defines
Inlining code using preprocessor function like macros is bad for
readability, and prone to errors. Besides this is a pager, who cares if
code is few milliseconds slower.
Requestee-by: Karel Zak <kzak@redhat.com> Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Sami Kerola [Wed, 23 May 2018 21:58:34 +0000 (22:58 +0100)]
more: remove global variables, add struct more_control
This is rather big change, but that is the only way to do this sort job. To
keep this change relatively understandable only moves global variables to a
state structure.
partx: exit with error code when partition read failed
Make sure partx exits with a non-0 return code when
it runs into either code-path where getting the partition
table failed (or wasn't even attempted because of previous
error condition).
Change was tested using:
touch /tmp/foobar
partx -s - /tmp/foobar
Previously that was only printing an error/warning message
and then exiting with 0, but after this change it exits
with 1.
Signed-off-by: Andreas Henriksson <andreas@fatal.se> Reported-by: Juan Céspedes <cespedes@debian.org>
Addresses: https://bugs.debian.org/898426
Karel Zak [Mon, 11 Jun 2018 10:21:56 +0000 (12:21 +0200)]
wipefs: postpone BLKRRPART until all is done
It's possible we erase from the whole device before we erase from the
partition on the same disk:
# wipefs -a /dev/sdc /dev/sdc1
the current code calls re-read PT ioctl immediately after erase (so,
before sdc1 is processed). The result is that sdc1 node is no more
accessible:
# wipefs -a /dev/sdc /dev/sdc1
/dev/sdc: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
/dev/sdc: calling ioctl to re-read partition table: Success
wipefs: error: /dev/sdc1: probing initialization failed: No such file or directory
It seems the most simple solution is to postpone the re-read ioctl and
do it as the last thing.
# wipefs -a /dev/sdc /dev/sdc1
/dev/sdc: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
/dev/sdc1: 2 bytes were erased at offset 0x00000438 (ext4): 53 ef
/dev/sdc: calling ioctl to re-read partition table: Success
The patch also adds a small delay before the re-read ioctl call. It's
not elegant, but without the usleep(25000) the first attempt returns
EBUSY.
Addresses: https://github.com/karelzak/util-linux/issues/598 Signed-off-by: Karel Zak <kzak@redhat.com>
Karel Zak [Fri, 8 Jun 2018 09:37:55 +0000 (11:37 +0200)]
blkzone: fix whole device detection
Matias Bjørling wrote:
The current detection code for chunk size assumes that the
underlying device is a device that uses the minor device id
as the partition id, and that the whole device has minor id 0.
This is not true for example null_blk and nvme device drivers.
Let's use sysfs_devno_to_wholedisk() to get whole-disk devno.
Addresses: https://github.com/karelzak/util-linux/pull/646 Reported-by: Matias Bjørling matias.bjorling@wdc.com Signed-off-by: Karel Zak <kzak@redhat.com>
Karel Zak [Wed, 6 Jun 2018 13:57:24 +0000 (15:57 +0200)]
agetty: keep c_iflags unmodified on --autologin
agetty sets c_iflags according to interaction with serial line in
get_logname(). For --autologin it does not read from the line, so we
have no clue how to set the flags.
The current behavior is to zeroize the flags. Unfortunately, it seems
like bad idea, because the line may be already properly initialized by
kernel (or systemd, etc.).
The new behavior is not touch the flags on --autologin.
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1252764 Signed-off-by: Karel Zak <kzak@redhat.com>
Karel Zak [Mon, 4 Jun 2018 13:20:28 +0000 (15:20 +0200)]
libsmartcols: don't print empty column
The commit 0f9f927b6f62cb7f488fadfad76c4a5defdefe36 forces
libsmartcols to use one byte as a minimal column width. This seems
like a bug if the column is empty and without header.
Karel Zak [Fri, 1 Jun 2018 12:07:53 +0000 (14:07 +0200)]
mount: keep MS_MOVE as flag
The previous commit 4ebea84bb1ca6b0fa817588aba13de26c8d5e5a0 replaced
all operations by strings, but it does not work for MS_MOVE as this
operation is not supported in fstab by libmount.
Karel Zak [Fri, 1 Jun 2018 10:11:03 +0000 (12:11 +0200)]
mount: use internally string to set move/bind operations
It's better to inform libmount about operations by string than by
flags, because for example "rbind,slave" cannot be specified by
MS_REC|MS_BIND|MS_SLAVE.
https://bugzilla.redhat.com/show_bug.cgi?id=1584443 Signed-off-by: Karel Zak <kzak@redhat.com>
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