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/openbmc/linux/fs/jbd2/
H A Djournal.c3 * linux/fs/jbd2/journal.c
9 * Generic filesystem journal-writing code; part of the ext2fs
16 * We do not actually manage the physical storage of the journal in this
17 * file: that is left to a per-journal policy function, which allows us
18 * to store the journal within a filesystem-specified area for ext2
137 journal_t *journal = from_timer(journal, t, j_commit_timer); in commit_timeout() local
139 wake_up_process(journal->j_task); in commit_timeout()
144 * journal.
149 * filesystem to disk. The journal thread is responsible for writing
151 * journal thread waits until it's done and then continues from
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H A Dcheckpoint.c44 * __jbd2_log_wait_for_space: wait until there is space in the journal.
49 void __jbd2_log_wait_for_space(journal_t *journal) in __jbd2_log_wait_for_space() argument
50 __acquires(&journal->j_state_lock) in __jbd2_log_wait_for_space()
51 __releases(&journal->j_state_lock) in __jbd2_log_wait_for_space()
54 /* assert_spin_locked(&journal->j_state_lock); */ in __jbd2_log_wait_for_space()
56 nblocks = journal->j_max_transaction_buffers; in __jbd2_log_wait_for_space()
57 while (jbd2_log_space_left(journal) < nblocks) { in __jbd2_log_wait_for_space()
58 write_unlock(&journal->j_state_lock); in __jbd2_log_wait_for_space()
59 mutex_lock_io(&journal->j_checkpoint_mutex); in __jbd2_log_wait_for_space()
65 * journal space by calling cleanup_journal_tail(), and if in __jbd2_log_wait_for_space()
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H A Dcommit.c9 * Journal commit routines for the generic filesystem journaling code;
30 * IO end handler for temporary buffer_heads handling writes to the journal.
109 * mode we can now just skip the rest of the journal write
112 * Returns 1 if the journal needs to be aborted or 0 on success
114 static int journal_submit_commit_record(journal_t *journal, in journal_submit_commit_record() argument
126 if (is_journal_aborted(journal)) in journal_submit_commit_record()
139 if (jbd2_has_feature_checksum(journal)) { in journal_submit_commit_record()
144 jbd2_commit_block_csum_set(journal, bh); in journal_submit_commit_record()
152 if (journal->j_flags & JBD2_BARRIER && in journal_submit_commit_record()
153 !jbd2_has_feature_async_commit(journal)) in journal_submit_commit_record()
165 journal_wait_on_commit_record(journal_t * journal,struct buffer_head * bh) journal_wait_on_commit_record() argument
181 jbd2_submit_inode_data(journal_t * journal,struct jbd2_inode * jinode) jbd2_submit_inode_data() argument
192 jbd2_wait_inode_data(journal_t * journal,struct jbd2_inode * jinode) jbd2_wait_inode_data() argument
211 journal_submit_data_buffers(journal_t * journal,transaction_t * commit_transaction) journal_submit_data_buffers() argument
254 journal_finish_inode_data_buffers(journal_t * journal,transaction_t * commit_transaction) journal_finish_inode_data_buffers() argument
348 jbd2_journal_commit_transaction(journal_t * journal) jbd2_journal_commit_transaction() argument
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H A Drecovery.c9 * Journal recovery routines for the generic filesystem journaling code;
39 static int do_one_pass(journal_t *journal,
55 * When reading from the journal, we are going through the block device
67 static int do_readahead(journal_t *journal, unsigned int start) in do_readahead() argument
77 max = start + (128 * 1024 / journal->j_blocksize); in do_readahead()
78 if (max > journal->j_total_len) in do_readahead()
79 max = journal->j_total_len; in do_readahead()
87 err = jbd2_journal_bmap(journal, next, &blocknr); in do_readahead()
95 bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize); in do_readahead()
126 * Read a block from the journal
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H A Drevoke.c9 * Journal revoke routines for the generic filesystem journaling code;
17 * transaction's revoked blocks to the journal
34 * need either to cancel the journal entry or to write the revoke
62 * running transaction (is pointed to by journal->j_revoke), the other one
99 journal replay, this involves recording the transaction ID of the
131 static inline int hash(journal_t *journal, unsigned long long block) in hash() argument
133 return hash_64(block, journal->j_revoke->hash_shift); in hash()
136 static int insert_revoke_hash(journal_t *journal, unsigned long long blocknr, in insert_revoke_hash() argument
151 hash_list = &journal->j_revoke->hash_table[hash(journal, blockn in insert_revoke_hash()
160 find_revoke_record(journal_t * journal,unsigned long long blocknr) find_revoke_record() argument
263 jbd2_journal_init_revoke(journal_t * journal,int hash_size) jbd2_journal_init_revoke() argument
290 jbd2_journal_destroy_revoke(journal_t * journal) jbd2_journal_destroy_revoke() argument
330 journal_t *journal; jbd2_journal_revoke() local
426 journal_t *journal = handle->h_transaction->t_journal; jbd2_journal_cancel_revoke() local
484 jbd2_clear_buffer_revoked_flags(journal_t * journal) jbd2_clear_buffer_revoked_flags() argument
513 jbd2_journal_switch_revoke_table(journal_t * journal) jbd2_journal_switch_revoke_table() argument
533 journal_t *journal = transaction->t_journal; jbd2_journal_write_revoke_records() local
577 journal_t *journal = transaction->t_journal; write_one_revoke_record() local
641 flush_descriptor(journal_t * journal,struct buffer_head * descriptor,int offset) flush_descriptor() argument
683 jbd2_journal_set_revoke(journal_t * journal,unsigned long long blocknr,tid_t sequence) jbd2_journal_set_revoke() argument
707 jbd2_journal_test_revoke(journal_t * journal,unsigned long long blocknr,tid_t sequence) jbd2_journal_test_revoke() argument
726 jbd2_journal_clear_revoke(journal_t * journal) jbd2_journal_clear_revoke() argument
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H A Dtransaction.c69 * RUNNING state and add it to the current journal (which should not
74 * The journal MUST be locked. We don't perform atomic mallocs on the
76 * processes trying to touch the journal while it is in transition.
80 static void jbd2_get_transaction(journal_t *journal, in jbd2_get_transaction() argument
83 transaction->t_journal = journal; in jbd2_get_transaction()
86 transaction->t_tid = journal->j_transaction_sequence++; in jbd2_get_transaction()
87 transaction->t_expires = jiffies + journal->j_commit_interval; in jbd2_get_transaction()
90 journal->j_transaction_overhead_buffers + in jbd2_get_transaction()
91 atomic_read(&journal->j_reserved_credits)); in jbd2_get_transaction()
98 journal->j_commit_timer.expires = round_jiffies_up(transaction->t_expires); in jbd2_get_transaction()
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/openbmc/linux/drivers/md/bcache/
H A Djournal.h6 * THE JOURNAL:
8 * The journal is treated as a circular buffer of buckets - a journal entry
10 * journal at runtime, and will be needed for bcache on raw flash support.
12 * Journal entries contain a list of keys, ordered by the time they were
13 * inserted; thus journal replay just has to reinsert the keys.
15 * We also keep some things in the journal header that are logically part of the
18 * journal) can't be moved or wear leveled, so it contains just enough
19 * information to find the main journal, and the superblock only has to be
20 * rewritten when we want to move/wear level the main journal.
22 * Currently, we don't journal BTREE_REPLACE operations - this will hopefully be
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H A Djournal.c16 * Journal replay/recovery:
18 * This code is all driven from run_cache_set(); we first read the journal
19 * entries, do some other stuff, then we mark all the keys in the journal
22 * journal.
24 * We only journal keys that go in leaf nodes, which simplifies things quite a
38 struct journal_device *ja = &ca->journal; in journal_read_bucket()
42 struct jset *j, *data = ca->set->journal.w[0].data; in journal_read_bucket()
68 * journal entries that overlap bucket boundaries; this means in journal_read_bucket()
69 * the start of a bucket will always have a valid journal entry in journal_read_bucket()
70 * if it has any journal entries at all. in journal_read_bucket()
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/openbmc/phosphor-power/phosphor-regulators/src/
H A Derror_logging.hpp19 #include "journal.hpp"
64 * @param journal system journal
67 Journal& journal) = 0;
75 * @param journal system journal
77 virtual void logDBusError(Entry::Level severity, Journal& journal) = 0;
83 * @param journal system journal
89 virtual void logI2CError(Entry::Level severity, Journal& journal,
97 * @param journal system journal
99 virtual void logInternalError(Entry::Level severity, Journal& journal) = 0;
107 * @param journal system journal
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H A Djournal.hpp18 #include <systemd/sd-journal.h>
29 * @class Journal
31 * Abstract base class that provides a journal interface.
33 * The interface is used to write messages/log entries to the system journal.
35 class Journal class
39 Journal() = default;
40 Journal(const Journal&) = delete;
41 Journal(Journal&&) = delete;
42 Journal& operator=(const Journal&) = delete;
43 Journal& operator=(Journal&&) = delete;
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H A Djournal.cpp17 #include "journal.hpp"
34 * Automatically closes the journal when the object goes out of scope.
46 explicit JournalCloser(sd_journal* journal) : journal{journal} {} in JournalCloser() argument
50 sd_journal_close(journal); in ~JournalCloser()
54 sd_journal* journal{nullptr}; member in phosphor::power::regulators::JournalCloser
60 // Sleep 100ms; otherwise recent journal entries sometimes not available in getMessages()
64 // Open the journal in getMessages()
65 sd_journal* journal; in getMessages() local
66 int rc = sd_journal_open(&journal, SD_JOURNAL_LOCAL_ONLY); in getMessages()
70 std::string{"Failed to open journal: "} + strerror(-rc)}; in getMessages()
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H A Derror_logging.cpp37 Journal& journal) in logConfigFileError() argument
52 logError(message, severity, additionalData, journal); in logConfigFileError()
55 void DBusErrorLogging::logDBusError(Entry::Level severity, Journal& journal) in logDBusError() argument
59 journal); in logDBusError()
62 void DBusErrorLogging::logI2CError(Entry::Level severity, Journal& journal, in logI2CError() argument
79 journal); in logI2CError()
82 void DBusErrorLogging::logInternalError(Entry::Level severity, Journal& journal) in logInternalError() argument
86 additionalData, journal); in logInternalError()
90 Entry::Level severity, Journal& journal, PhaseFaultType type, in logPhaseFault() argument
99 logError(message, severity, additionalData, journal); in logPhaseFault()
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/openbmc/linux/fs/reiserfs/
H A Djournal.c75 /* journal list state bits */
94 struct reiserfs_journal *journal);
102 JBEGIN_REG = 0, /* regular journal begin */
115 struct reiserfs_journal *journal = SB_JOURNAL(sb); in init_journal_hash() local
116 memset(journal->j_hash_table, 0, in init_journal_hash()
157 struct reiserfs_journal *journal = SB_JOURNAL(sb); in get_bitmap_node() local
159 struct list_head *entry = journal->j_bitmap_nodes.next; in get_bitmap_node()
161 journal->j_used_bitmap_nodes++; in get_bitmap_node()
164 if (entry != &journal->j_bitmap_nodes) { in get_bitmap_node()
168 journal->j_free_bitmap_nodes--; in get_bitmap_node()
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/openbmc/phosphor-logging/extensions/openpower-pels/
H A Djournal.hpp3 #include <systemd/sd-journal.h>
13 * Abstract class to read messages from the journal.
26 * @brief Get messages from the journal
37 * @brief Call journalctl --sync to write unwritten journal data to disk
43 * @class Journal
45 * Reads from the journal.
47 class Journal : public JournalBase class
50 Journal() = default;
51 ~Journal() = default;
52 Journal(const Journal&) = default;
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H A Djournal.cpp16 #include "journal.hpp"
32 * Closes the journal on destruction
43 explicit JournalCloser(sd_journal* journal) : journal{journal} {} in JournalCloser() argument
47 sd_journal_close(journal); in ~JournalCloser()
51 sd_journal* journal{nullptr}; member in openpower::pels::JournalCloser
54 void Journal::sync() const in sync()
66 lg2::info("Journal sync took {DURATION}ms", "DURATION", in sync()
72 Journal::getMessages(const std::string& syslogID, size_t maxMessages) const in getMessages()
78 "maxMessages value of zero passed into Journal::getMessages"); in getMessages()
82 sd_journal* journal; in getMessages() local
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/openbmc/linux/Documentation/filesystems/ext4/
H A Djournal.rst3 Journal (jbd2)
6 Introduced in ext3, the ext4 filesystem employs a journal to protect the
8 to 10,240,000 file system blocks (see man mke2fs(8) for more details on journal
12 cache, a record of the data being committed is also written to the journal. At
13 some later point in time, the journal code writes the transactions to their
16 crash during the second slow write, the journal can be replayed all the
18 gets written through the journal to the disk. The effect of this is to
23 through the journal. This means that file data blocks are /not/
26 option to control journal behavior. If ``data=journal``, all data and
27 metadata are written to disk through the journal. This is slower but
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/openbmc/linux/fs/ocfs2/
H A Djournal.c3 * journal.c
31 #include "journal.h"
62 static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal,
155 ocfs2_queue_recovery_completion(osb->journal, i, NULL, in ocfs2_queue_replay_slots()
294 struct ocfs2_journal *journal = NULL; in ocfs2_commit_cache() local
296 journal = osb->journal; in ocfs2_commit_cache()
298 /* Flush all pending commits and checkpoint the journal. */ in ocfs2_commit_cache()
299 down_write(&journal->j_trans_barrier); in ocfs2_commit_cache()
301 flushed = atomic_read(&journal->j_num_trans); in ocfs2_commit_cache()
304 up_write(&journal->j_trans_barrier); in ocfs2_commit_cache()
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/openbmc/linux/include/linux/
H A Djbd2.h24 #include <linux/journal-head.h>
105 typedef struct journal_s journal_t; /* Journal control structure */
156 * field is used to store crc32c(uuid+commit_block). Each journal metadata
180 * The block tag: used to describe a single buffer in the journal.
183 * journal_tag_bytes(journal) instead to compute this.
216 /* Definitions for the journal tag flags word: */
224 * The journal superblock. All fields are in big-endian byte order.
232 /* Static information describing the journal */
233 __be32 s_blocksize; /* journal device blocksize */
234 __be32 s_maxlen; /* total blocks in journal file */
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/openbmc/bmcweb/redfish-core/lib/
H A Dmanager_logservices_journal.hpp14 #include <systemd/sd-journal.h>
44 boost::urls::format("/redfish/v1/Managers/{}/LogServices/Journal", in handleManagersLogServiceJournalGet()
46 asyncResp->res.jsonValue["Name"] = "Open BMC Journal Log Service"; in handleManagersLogServiceJournalGet()
47 asyncResp->res.jsonValue["Description"] = "BMC Journal Log Service"; in handleManagersLogServiceJournalGet()
48 asyncResp->res.jsonValue["Id"] = "Journal"; in handleManagersLogServiceJournalGet()
58 "/redfish/v1/Managers/{}/LogServices/Journal/Entries", in handleManagersLogServiceJournalGet()
64 std::unique_ptr<sd_journal, decltype(&sd_journal_close)> journal; member
80 // The Journal APIs unfortunately do blocking calls to the filesystem, and in readJournalEntries()
82 // implementation of sd-journal, which would be difficult, the best thing we in readJournalEntries()
106 if (!fillBMCJournalLogEntryJson(readState.journal.get(), in readJournalEntries()
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/openbmc/linux/Documentation/admin-guide/device-mapper/
H A Ddm-integrity.rst12 To guarantee write atomicity, the dm-integrity target uses journal, it
13 writes sector data and integrity tags into a journal, commits the journal
29 instead of a journal. If a bit in the bitmap is 1, the corresponding
32 is faster than the journal mode, because we don't have to write the data
75 D - direct writes (without journal)
82 journal and atomicity is guaranteed. In case of crash,
90 R - recovery mode - in this mode, journal is not replayed,
101 The size of journal, this argument is used only if formatting the
119 The journal watermark in percents. When the size of the journal
120 exceeds this watermark, the thread that flushes the journal will
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/openbmc/openpower-hw-diags/util/
H A Dffdc.cpp11 * Parse systemd journal message field
13 * Parse the journal looking for the specified field and return the journal
16 * @param journal - The journal to parse
20 std::string sdjGetFieldValue(sd_journal* journal, const char* field) in sdjGetFieldValue() argument
26 if (0 == sd_journal_get_data(journal, field, (const void**)&data, &length)) in sdjGetFieldValue()
54 * Gather messages from the journal
56 * Fetch journal entry data for all entries with the specified field equal to
62 * @return Vector of journal entry data
67 sd_journal* journal; in sdjGetMessages() local
70 if (0 == sd_journal_open(&journal, SD_JOURNAL_LOCAL_ONLY)) in sdjGetMessages()
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/openbmc/linux/include/trace/events/
H A Djbd2.h16 TP_PROTO(journal_t *journal, int result),
18 TP_ARGS(journal, result),
26 __entry->dev = journal->j_fs_dev->bd_dev;
36 TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
38 TP_ARGS(journal, commit_transaction),
47 __entry->dev = journal->j_fs_dev->bd_dev;
59 TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
61 TP_ARGS(journal, commit_transaction)
66 TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
68 TP_ARGS(journal, commit_transaction)
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/openbmc/phosphor-dbus-monitor/src/
H A Djournal.hpp18 * @brief Journal callback implementation.
20 * The journal callback logs the client message and
21 * journal metadata key value pairs as specified by the
74 /** @class Journal
75 * @brief C++ type specific logic for the journal callback.
81 class Journal : public JournalBase class
84 Journal() = delete;
85 Journal(const Journal&) = delete;
86 Journal(Journal&&) = default;
87 Journal& operator=(const Journal&) = delete;
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/openbmc/phosphor-power/phosphor-regulators/test/
H A Dmock_error_logging.hpp43 (Entry::Level severity, Journal& journal), (override));
45 MOCK_METHOD(void, logDBusError, (Entry::Level severity, Journal& journal),
49 (Entry::Level severity, Journal& journal,
54 (Entry::Level severity, Journal& journal), (override));
57 (Entry::Level severity, Journal& journal, PhaseFaultType type,
63 (Entry::Level severity, Journal& journal,
68 (Entry::Level severity, Journal& journal,
/openbmc/bmcweb/redfish-core/include/utils/
H A Djournal_utils.hpp6 #include <systemd/sd-journal.h>
16 inline int getJournalMetadata(sd_journal* journal, const char* field, in getJournalMetadata() argument
22 // Get the metadata from the requested field of the journal entry in getJournalMetadata()
26 ret = sd_journal_get_data(journal, field, dataVoid, &length); in getJournalMetadata()
37 inline int getJournalMetadataInt(sd_journal* journal, const char* field, in getJournalMetadataInt() argument
41 // Get the metadata from the requested field of the journal entry in getJournalMetadataInt()
42 int ret = getJournalMetadata(journal, field, metadata); in getJournalMetadataInt()
56 inline bool getEntryTimestamp(sd_journal* journal, std::string& entryTimestamp) in getEntryTimestamp() argument
60 ret = sd_journal_get_realtime_usec(journal, &timestamp); in getEntryTimestamp()
71 sd_journal* journal, nlohmann::json::object_t& bmcJournalLogEntryJson) in fillBMCJournalLogEntryJson() argument
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