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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

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Pull ext4 updates from Ted Ts'o:

 - add GETFSMAP support

 - some performance improvements for very large file systems and for
   random write workloads into a preallocated file

 - bug fixes and cleanups.

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: cleanup write flags handling from jbd2_write_superblock()
  ext4: mark superblock writes synchronous for nobarrier mounts
  ext4: inherit encryption xattr before other xattrs
  ext4: replace BUG_ON with WARN_ONCE in ext4_end_bio()
  ext4: avoid unnecessary transaction stalls during writeback
  ext4: preload block group descriptors
  ext4: make ext4_shutdown() static
  ext4: support GETFSMAP ioctls
  vfs: add common GETFSMAP ioctl definitions
  ext4: evict inline data when writing to memory map
  ext4: remove ext4_xattr_check_entry()
  ext4: rename ext4_xattr_check_names() to ext4_xattr_check_entries()
  ext4: merge ext4_xattr_list() into ext4_listxattr()
  ext4: constify static data that is never modified
  ext4: trim return value and 'dir' argument from ext4_insert_dentry()
  jbd2: fix dbench4 performance regression for 'nobarrier' mounts
  jbd2: Fix lockdep splat with generic/270 test
  mm: retry writepages() on ENOMEM when doing an data integrity writeback
This commit is contained in:
Linus Torvalds
2017-05-08 11:30:05 -07:00
parent 13e0988140 17f423b516
commit dd727dad37
18 changed files with 1165 additions and 97 deletions
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28
fs/jbd2/journal.c
View File

@@ -700,8 +700,21 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
{
int err = 0;
jbd2_might_wait_for_commit(journal);
read_lock(&journal->j_state_lock);
#ifdef CONFIG_PROVE_LOCKING
/*
* Some callers make sure transaction is already committing and in that
* case we cannot block on open handles anymore. So don't warn in that
* case.
*/
if (tid_gt(tid, journal->j_commit_sequence) &&
(!journal->j_committing_transaction ||
journal->j_committing_transaction->t_tid != tid)) {
read_unlock(&journal->j_state_lock);
jbd2_might_wait_for_commit(journal);
read_lock(&journal->j_state_lock);
}
#endif
#ifdef CONFIG_JBD2_DEBUG
if (!tid_geq(journal->j_commit_request, tid)) {
printk(KERN_ERR
@@ -922,7 +935,8 @@ int __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block)
* space and if we lose sb update during power failure we'd replay
* old transaction with possibly newly overwritten data.
*/
ret = jbd2_journal_update_sb_log_tail(journal, tid, block, REQ_FUA);
ret = jbd2_journal_update_sb_log_tail(journal, tid, block,
REQ_SYNC | REQ_FUA);
if (ret)
goto out;
@@ -1323,7 +1337,7 @@ static int journal_reset(journal_t *journal)
jbd2_journal_update_sb_log_tail(journal,
journal->j_tail_sequence,
journal->j_tail,
REQ_FUA);
REQ_SYNC | REQ_FUA);
mutex_unlock(&journal->j_checkpoint_mutex);
}
return jbd2_journal_start_thread(journal);
@@ -1463,7 +1477,7 @@ void jbd2_journal_update_sb_errno(journal_t *journal)
sb->s_errno = cpu_to_be32(journal->j_errno);
read_unlock(&journal->j_state_lock);
jbd2_write_superblock(journal, REQ_FUA);
jbd2_write_superblock(journal, REQ_SYNC | REQ_FUA);
}
EXPORT_SYMBOL(jbd2_journal_update_sb_errno);
@@ -1730,7 +1744,7 @@ int jbd2_journal_destroy(journal_t *journal)
write_unlock(&journal->j_state_lock);
jbd2_mark_journal_empty(journal,
REQ_PREFLUSH | REQ_FUA);
REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
mutex_unlock(&journal->j_checkpoint_mutex);
} else
err = -EIO;
@@ -1989,7 +2003,7 @@ int jbd2_journal_flush(journal_t *journal)
* the magic code for a fully-recovered superblock. Any future
* commits of data to the journal will restore the current
* s_start value. */
jbd2_mark_journal_empty(journal, REQ_FUA);
jbd2_mark_journal_empty(journal, REQ_SYNC | REQ_FUA);
mutex_unlock(&journal->j_checkpoint_mutex);
write_lock(&journal->j_state_lock);
J_ASSERT(!journal->j_running_transaction);
@@ -2035,7 +2049,7 @@ int jbd2_journal_wipe(journal_t *journal, int write)
if (write) {
/* Lock to make assertions happy... */
mutex_lock(&journal->j_checkpoint_mutex);
jbd2_mark_journal_empty(journal, REQ_FUA);
jbd2_mark_journal_empty(journal, REQ_SYNC | REQ_FUA);
mutex_unlock(&journal->j_checkpoint_mutex);
}