From c01a24e9ad46eb17de5c37296194d2ce97916439 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michal=20Sekleta=CC=81r?= Date: Tue, 4 Feb 2020 14:23:14 +0100 Subject: [PATCH] sd-journal: close journal files that were deleted by journald before we've setup inotify watch Fixes #14695 (cherry picked from commit 28ca867abdb20d0e4ac1901e2ed669cdb41ea3f6) Related: #1826217 --- src/journal/journal-file.c | 2 +- src/journal/journal-file.h | 1 + src/journal/sd-journal.c | 15 +++++++++++++++ 3 files changed, 17 insertions(+), 1 deletion(-) diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c index 8249b11b23..7ab3c47fc9 100644 --- a/src/journal/journal-file.c +++ b/src/journal/journal-file.c @@ -597,7 +597,7 @@ static int journal_file_verify_header(JournalFile *f) { return 0; } -static int journal_file_fstat(JournalFile *f) { +int journal_file_fstat(JournalFile *f) { int r; assert(f); diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h index 6a44fd39d2..6069b35234 100644 --- a/src/journal/journal-file.h +++ b/src/journal/journal-file.h @@ -144,6 +144,7 @@ int journal_file_open( int journal_file_set_offline(JournalFile *f, bool wait); bool journal_file_is_offlining(JournalFile *f); JournalFile* journal_file_close(JournalFile *j); +int journal_file_fstat(JournalFile *f); DEFINE_TRIVIAL_CLEANUP_FUNC(JournalFile*, journal_file_close); int journal_file_open_reliably( diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c index 323300baec..c06255e273 100644 --- a/src/journal/sd-journal.c +++ b/src/journal/sd-journal.c @@ -2584,6 +2584,8 @@ _public_ int sd_journal_wait(sd_journal *j, uint64_t timeout_usec) { assert_return(!journal_pid_changed(j), -ECHILD); if (j->inotify_fd < 0) { + Iterator i; + JournalFile *f; /* This is the first invocation, hence create the * inotify watch */ @@ -2591,6 +2593,19 @@ _public_ int sd_journal_wait(sd_journal *j, uint64_t timeout_usec) { if (r < 0) return r; + /* Server might have done some vacuuming while we weren't watching. + Get rid of the deleted files now so they don't stay around indefinitely. */ + ORDERED_HASHMAP_FOREACH(f, j->files, i) { + r = journal_file_fstat(f); + if (r < 0) { + log_debug_errno(r,"Failed to fstat() journal file '%s' : %m", f->path); + continue; + } + + if (f->last_stat.st_nlink <= 0) + remove_file_real(j, f); + } + /* The journal might have changed since the context * object was created and we weren't watching before, * hence don't wait for anything, and return