A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

ext4: fix incorrect tid assumption in __jbd2_log_wait_for_space()

Browse source 
commit 972090651ee15e51abfb2160e986fa050cfc7a40 upstream.

Function __jbd2_log_wait_for_space() assumes that '0' is not a valid value
for transaction IDs, which is incorrect.  Don't assume that and invoke
jbd2_log_wait_commit() if the journal had a committing transaction instead.

Signed-off-by: Luis Henriques (SUSE) <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Luis Henriques (SUSE) 2024-07-24 17:11:16 +01:00 • committed by Greg Kroah-Hartman
commit 2bcfc2dc6d
1 changed files with 5 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

7
fs/jbd2/checkpoint.c
View file

@ -115,9 +115,12 @@ __releases(&journal->j_state_lock)
if (space_left < nblocks) {
int chkpt = journal->j_checkpoint_transactions != NULL;
tid_t tid = 0;
bool has_transaction = false;
if (journal->j_committing_transaction)
if (journal->j_committing_transaction) {
tid = journal->j_committing_transaction->t_tid;
has_transaction = true;
}
spin_unlock(&journal->j_list_lock);
write_unlock(&journal->j_state_lock);
if (chkpt) {
@ -125,7 +128,7 @@ __releases(&journal->j_state_lock)
} else if (jbd2_cleanup_journal_tail(journal) == 0) {
/* We were able to recover space; yay! */
;
} else if (tid) {
} else if (has_transaction) {
/*
* jbd2_journal_commit_transaction() may want
* to take the checkpoint_mutex if JBD2_FLUSHED