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journal: vacuum corrupted files, too

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This commit is contained in:
Lennart Poettering 2012-03-15 01:35:03 +01:00
parent 9447a7f1de
commit 5c70eab445
1 changed files with 67 additions and 28 deletions
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95
src/journal/journal-file.c
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@ -1891,6 +1891,8 @@ int journal_file_open_reliably(
if (!(flags & O_CREAT))
return r;
/* The file is corrupted. Rotate it away and try it again (but only once) */
l = strlen(fname);
if (asprintf(&p, "%.*s@%016llx-%016llx.journal~",
(int) (l-8), fname,
@ -1915,6 +1917,8 @@ struct vacuum_info {
uint64_t realtime;
sd_id128_t seqnum_id;
uint64_t seqnum;
bool have_seqnum;
};
static int vacuum_compare(const void *_a, const void *_b) {
@ -1923,7 +1927,8 @@ static int vacuum_compare(const void *_a, const void *_b) {
a = _a;
b = _b;
if (sd_id128_equal(a->seqnum_id, b->seqnum_id)) {
if (a->have_seqnum && b->have_seqnum &&
sd_id128_equal(a->seqnum_id, b->seqnum_id)) {
if (a->seqnum < b->seqnum)
return -1;
else if (a->seqnum > b->seqnum)
@ -1936,8 +1941,10 @@ static int vacuum_compare(const void *_a, const void *_b) {
return -1;
else if (a->realtime > b->realtime)
return 1;
else
else if (a->have_seqnum && b->have_seqnum)
return memcmp(&a->seqnum_id, &b->seqnum_id, 16);
else
return strcmp(a->filename, b->filename);
}
int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t min_free) {
@ -1964,6 +1971,7 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
char *p;
unsigned long long seqnum, realtime;
sd_id128_t seqnum_id;
bool have_seqnum;
k = readdir_r(d, &buf, &de);
if (k != 0) {
@ -1974,41 +1982,71 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
if (!de)
break;
if (!dirent_is_file_with_suffix(de, ".journal"))
continue;
q = strlen(de->d_name);
if (q < 1 + 32 + 1 + 16 + 1 + 16 + 8)
continue;
if (de->d_name[q-8-16-1] != '-' ||
de->d_name[q-8-16-1-16-1] != '-' ||
de->d_name[q-8-16-1-16-1-32-1] != '@')
continue;
if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0)
continue;
if (!S_ISREG(st.st_mode))
continue;
p = strdup(de->d_name);
if (!p) {
r = -ENOMEM;
goto finish;
}
q = strlen(de->d_name);
de->d_name[q-8-16-1-16-1] = 0;
if (sd_id128_from_string(de->d_name + q-8-16-1-16-1-32, &seqnum_id) < 0) {
free(p);
continue;
}
if (endswith(de->d_name, ".journal")) {
if (sscanf(de->d_name + q-8-16-1-16, "%16llx-%16llx.journal", &seqnum, &realtime) != 2) {
free(p);
/* Vacuum archived files */
if (q < 1 + 32 + 1 + 16 + 1 + 16 + 8)
continue;
if (de->d_name[q-8-16-1] != '-' ||
de->d_name[q-8-16-1-16-1] != '-' ||
de->d_name[q-8-16-1-16-1-32-1] != '@')
continue;
p = strdup(de->d_name);
if (!p) {
r = -ENOMEM;
goto finish;
}
de->d_name[q-8-16-1-16-1] = 0;
if (sd_id128_from_string(de->d_name + q-8-16-1-16-1-32, &seqnum_id) < 0) {
free(p);
continue;
}
if (sscanf(de->d_name + q-8-16-1-16, "%16llx-%16llx.journal", &seqnum, &realtime) != 2) {
free(p);
continue;
}
have_seqnum = true;
} else if (endswith(de->d_name, ".journal~")) {
unsigned long long tmp;
/* Vacuum corrupted files */
if (q < 1 + 16 + 1 + 16 + 8 + 1)
continue;
if (de->d_name[q-1-8-16-1] != '-' ||
de->d_name[q-1-8-16-1-16-1] != '@')
continue;
p = strdup(de->d_name);
if (!p) {
r = -ENOMEM;
goto finish;
}
if (sscanf(de->d_name + q-1-8-16-1-16, "%16llx-%16llx.journal~", &realtime, &tmp) != 2) {
free(p);
continue;
}
have_seqnum = false;
} else
continue;
}
if (n_list >= n_allocated) {
struct vacuum_info *j;
@ -2029,6 +2067,7 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
list[n_list].seqnum = seqnum;
list[n_list].realtime = realtime;
list[n_list].seqnum_id = seqnum_id;
list[n_list].have_seqnum = have_seqnum;
sum += list[n_list].usage;