Frederic Crozat
4574d97ac0
- 0001-journal-letting-interleaved-seqnums-go.patch and 0002-journal-remember-last-direction-of-search-and-keep-o.patch fix possible infinite loops in the journal code, related to bnc #817778 - 0001-journal-letting-interleaved-seqnums-go.patch and 0002-journal-remember-last-direction-of-search-and-keep-o.patch fix possible infinite loops in the journal code, related to bnc #817778 (forwarded request 179367 from elvigia) OBS-URL: https://build.opensuse.org/request/show/179368 OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=396
123 lines
3.8 KiB
Diff
123 lines
3.8 KiB
Diff
From 87011c25d96e9fbcd8a465ba758fa037c7d08203 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
|
|
Date: Thu, 6 Jun 2013 22:28:05 -0400
|
|
Subject: [PATCH 01/13] journal: remember last direction of search and keep
|
|
offset cache
|
|
|
|
The fields in JournalFile are moved around to avoid wasting
|
|
7 bytes because of alignment.
|
|
---
|
|
TODO | 3 ---
|
|
src/journal/journal-file.h | 18 +++++++++++-------
|
|
src/journal/sd-journal.c | 11 +++++------
|
|
3 files changed, 16 insertions(+), 16 deletions(-)
|
|
|
|
diff --git a/TODO b/TODO
|
|
index 0dd19a0..1dc585c 100644
|
|
--- a/TODO
|
|
+++ b/TODO
|
|
@@ -77,9 +77,6 @@ Features:
|
|
|
|
* investigate endianess issues of UUID vs. GUID
|
|
|
|
-* see if we can fix https://bugs.freedesktop.org/show_bug.cgi?id=63672
|
|
- without dropping the location cache entirely.
|
|
-
|
|
* dbus: when a unit failed to load (i.e. is in UNIT_ERROR state), we
|
|
should be able to safely try another attempt when the bus call LoadUnit() is invoked.
|
|
|
|
diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
|
|
index 7b1cd42..5cc2c2d 100644
|
|
--- a/src/journal/journal-file.h
|
|
+++ b/src/journal/journal-file.h
|
|
@@ -42,10 +42,14 @@ typedef struct JournalMetrics {
|
|
uint64_t keep_free;
|
|
} JournalMetrics;
|
|
|
|
+typedef enum direction {
|
|
+ DIRECTION_UP,
|
|
+ DIRECTION_DOWN
|
|
+} direction_t;
|
|
+
|
|
typedef struct JournalFile {
|
|
int fd;
|
|
- char *path;
|
|
- struct stat last_stat;
|
|
+
|
|
mode_t mode;
|
|
|
|
int flags;
|
|
@@ -56,6 +60,11 @@ typedef struct JournalFile {
|
|
|
|
bool tail_entry_monotonic_valid;
|
|
|
|
+ direction_t last_direction;
|
|
+
|
|
+ char *path;
|
|
+ struct stat last_stat;
|
|
+
|
|
Header *header;
|
|
HashItem *data_hash_table;
|
|
HashItem *field_hash_table;
|
|
@@ -90,11 +99,6 @@ typedef struct JournalFile {
|
|
#endif
|
|
} JournalFile;
|
|
|
|
-typedef enum direction {
|
|
- DIRECTION_UP,
|
|
- DIRECTION_DOWN
|
|
-} direction_t;
|
|
-
|
|
int journal_file_open(
|
|
const char *fname,
|
|
int flags,
|
|
diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
|
|
index 3aa9ed4..4c4cc2d 100644
|
|
--- a/src/journal/sd-journal.c
|
|
+++ b/src/journal/sd-journal.c
|
|
@@ -102,7 +102,8 @@ static void init_location(Location *l, LocationType type, JournalFile *f, Object
|
|
l->seqnum_set = l->realtime_set = l->monotonic_set = l->xor_hash_set = true;
|
|
}
|
|
|
|
-static void set_location(sd_journal *j, LocationType type, JournalFile *f, Object *o, uint64_t offset) {
|
|
+static void set_location(sd_journal *j, LocationType type, JournalFile *f, Object *o,
|
|
+ direction_t direction, uint64_t offset) {
|
|
assert(j);
|
|
assert(type == LOCATION_DISCRETE || type == LOCATION_SEEK);
|
|
assert(f);
|
|
@@ -110,12 +111,10 @@ static void set_location(sd_journal *j, LocationType type, JournalFile *f, Objec
|
|
|
|
init_location(&j->current_location, type, f, o);
|
|
|
|
- if (j->current_file)
|
|
- j->current_file->current_offset = 0;
|
|
-
|
|
j->current_file = f;
|
|
j->current_field = 0;
|
|
|
|
+ f->last_direction = direction;
|
|
f->current_offset = offset;
|
|
}
|
|
|
|
@@ -811,7 +810,7 @@ static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direc
|
|
assert(j);
|
|
assert(f);
|
|
|
|
- if (f->current_offset > 0) {
|
|
+ if (f->last_direction == direction && f->current_offset > 0) {
|
|
cp = f->current_offset;
|
|
|
|
r = journal_file_move_to_object(f, OBJECT_ENTRY, cp, &c);
|
|
@@ -908,7 +907,7 @@ static int real_journal_next(sd_journal *j, direction_t direction) {
|
|
if (r < 0)
|
|
return r;
|
|
|
|
- set_location(j, LOCATION_DISCRETE, new_file, o, new_offset);
|
|
+ set_location(j, LOCATION_DISCRETE, new_file, o, direction, new_offset);
|
|
|
|
return 1;
|
|
}
|
|
--
|
|
1.8.2.1
|
|
|