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pstore: avoid opening the dmesg.txt file if not requested

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Even with Storage=journal we would still attempt to open the final
dmesg.txt file which causes a lot of noise in the journal:

```
[    5.764111] H testsuite-82.sh[658]: + systemctl start systemd-pstore
[    5.806385] H systemd[1]: Starting modprobe@efi_pstore.service...
[    5.808656] H systemd[1]: modprobe@efi_pstore.service: Deactivated successfully.
[    5.808971] H systemd[1]: Finished modprobe@efi_pstore.service.
[    5.818845] H kernel: audit: type=1130 audit(1682630623.637:114): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=modprobe@efi_pstore comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? termin>
[    5.818865] H kernel: audit: type=1131 audit(1682630623.637:115): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=modprobe@efi_pstore comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? termin>
[    5.816052] H systemd[1]: Starting systemd-pstore.service...
[    5.840703] H systemd-pstore[806]: PStore dmesg-efi-168263062313014.
[    5.841239] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.841428] H systemd-pstore[806]: PStore dmesg-efi-168263062312014.
[    5.841575] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.841712] H systemd-pstore[806]: PStore dmesg-efi-168263062311014.
[    5.841839] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.841989] H systemd-pstore[806]: PStore dmesg-efi-168263062310014.
[    5.842141] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.842274] H systemd-pstore[806]: PStore dmesg-efi-168263062309014.
[    5.842423] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.842589] H systemd-pstore[806]: PStore dmesg-efi-168263062308014.
[    5.842722] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.842865] H systemd-pstore[806]: PStore dmesg-efi-168263062307014.
[    5.843003] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.843153] H systemd-pstore[806]: PStore dmesg-efi-168263062306014.
[    5.843280] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.843434] H systemd-pstore[806]: PStore dmesg-efi-168263062305014.
[    5.843570] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.843702] H systemd-pstore[806]: PStore dmesg-efi-168263062304014.
[    5.843831] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.843958] H systemd-pstore[806]: PStore dmesg-efi-168263062303014.
[    5.844093] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.844250] H systemd-pstore[806]: PStore dmesg-efi-168263062302014.
[    5.844412] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.844619] H systemd-pstore[806]: PStore dmesg-efi-168263062301014.
[    5.844781] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.844956] H systemd-pstore[806]: PStore dmesg-efi-168263062300014.
[    5.845168] H systemd-pstore[806]: Failed to open file /var/lib/systemd/pstore/1682630623/014/dmesg.txt: Operation not permitted
[    5.851101] H systemd[1]: Finished systemd-pstore.service.
```
This commit is contained in:
Frantisek Sumsal 2023-04-28 11:50:33 +02:00
parent a95d96a243
commit ad5980803a
1 changed files with 3 additions and 0 deletions
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3
src/pstore/pstore.c
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@ -174,6 +174,9 @@ static int append_dmesg(PStoreEntry *pe, const char *subdir1, const char *subdir
assert(pe);
if (arg_storage != PSTORE_STORAGE_EXTERNAL)
return 0;
if (pe->content_size == 0)
return 0;