From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Ye Bin <yebin10@huawei.com>, Jan Kara <jack@suse.cz>,
Zhang Yi <yi.zhang@huawei.com>, Theodore Ts'o <tytso@mit.edu>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.15.y 2/3] jbd2: add prefix 'jbd2' for 'shrink_type'
Date: Tue, 8 Sep 2026 12:15:47 -0400 [thread overview]
Message-ID: <20260908161548.2612016-2-sashal@kernel.org> (raw)
In-Reply-To: <20260908161548.2612016-1-sashal@kernel.org>
From: Ye Bin <yebin10@huawei.com>
[ Upstream commit 26770a717cac57041d9414725e3e01dd19b08dd2 ]
As 'shrink_type' is exported. The module prefix 'jbd2' is added to
distinguish from memory reclamation.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20240407065355.1528580-3-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Stable-dep-of: 15cb16496446 ("jbd2: bound shrinker scans by examined checkpoint buffers")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/jbd2/checkpoint.c | 22 +++++++++++-----------
fs/jbd2/commit.c | 2 +-
include/linux/jbd2.h | 4 ++--
3 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 9fcc68884e262..36c64cf44e005 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -378,7 +378,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
* Called with j_list_lock held.
*/
static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
- enum shrink_type type,
+ enum jbd2_shrink_type type,
bool *released)
{
struct journal_head *last_jh;
@@ -395,12 +395,12 @@ static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
jh = next_jh;
next_jh = jh->b_cpnext;
- if (type == SHRINK_DESTROY) {
+ if (type == JBD2_SHRINK_DESTROY) {
ret = __jbd2_journal_remove_checkpoint(jh);
} else {
ret = jbd2_journal_try_remove_checkpoint(jh);
if (ret < 0) {
- if (type == SHRINK_BUSY_SKIP)
+ if (type == JBD2_SHRINK_BUSY_SKIP)
continue;
break;
}
@@ -470,7 +470,7 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
tid = transaction->t_tid;
freed = journal_shrink_one_cp_list(transaction->t_checkpoint_list,
- SHRINK_BUSY_SKIP, &released);
+ JBD2_SHRINK_BUSY_SKIP, &released);
nr_freed += freed;
(*nr_to_scan) -= min(*nr_to_scan, freed);
if (*nr_to_scan == 0)
@@ -503,20 +503,20 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
* journal_clean_checkpoint_list
*
* Find all the written-back checkpoint buffers in the journal and release them.
- * If 'type' is SHRINK_DESTROY, release all buffers unconditionally. If 'type'
- * is SHRINK_BUSY_STOP, will stop release buffers if encounters a busy buffer.
- * To avoid wasting CPU cycles scanning the buffer list in some cases, don't
- * pass SHRINK_BUSY_SKIP 'type' for this function.
+ * If 'type' is JBD2_SHRINK_DESTROY, release all buffers unconditionally. If
+ * 'type' is JBD2_SHRINK_BUSY_STOP, will stop release buffers if encounters a
+ * busy buffer. To avoid wasting CPU cycles scanning the buffer list in some
+ * cases, don't pass JBD2_SHRINK_BUSY_SKIP 'type' for this function.
*
* Called with j_list_lock held.
*/
void __jbd2_journal_clean_checkpoint_list(journal_t *journal,
- enum shrink_type type)
+ enum jbd2_shrink_type type)
{
transaction_t *transaction, *last_transaction, *next_transaction;
bool released;
- WARN_ON_ONCE(type == SHRINK_BUSY_SKIP);
+ WARN_ON_ONCE(type == JBD2_SHRINK_BUSY_SKIP);
transaction = journal->j_checkpoint_transactions;
if (!transaction)
@@ -562,7 +562,7 @@ void jbd2_journal_destroy_checkpoint(journal_t *journal)
spin_unlock(&journal->j_list_lock);
break;
}
- __jbd2_journal_clean_checkpoint_list(journal, SHRINK_DESTROY);
+ __jbd2_journal_clean_checkpoint_list(journal, JBD2_SHRINK_DESTROY);
spin_unlock(&journal->j_list_lock);
cond_resched();
}
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 182d2c39ff0a4..53908eb74c58f 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -536,7 +536,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* frees some memory
*/
spin_lock(&journal->j_list_lock);
- __jbd2_journal_clean_checkpoint_list(journal, SHRINK_BUSY_STOP);
+ __jbd2_journal_clean_checkpoint_list(journal, JBD2_SHRINK_BUSY_STOP);
spin_unlock(&journal->j_list_lock);
jbd2_debug(3, "JBD2: commit phase 1\n");
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 5583d735d4bf3..221e7dc87a296 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1435,9 +1435,9 @@ void jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);
extern void jbd2_journal_commit_transaction(journal_t *);
/* Checkpoint list management */
-enum shrink_type {SHRINK_DESTROY, SHRINK_BUSY_STOP, SHRINK_BUSY_SKIP};
+enum jbd2_shrink_type {JBD2_SHRINK_DESTROY, JBD2_SHRINK_BUSY_STOP, JBD2_SHRINK_BUSY_SKIP};
-void __jbd2_journal_clean_checkpoint_list(journal_t *journal, enum shrink_type type);
+void __jbd2_journal_clean_checkpoint_list(journal_t *journal, enum jbd2_shrink_type type);
unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal, unsigned long *nr_to_scan);
int __jbd2_journal_remove_checkpoint(struct journal_head *);
int jbd2_journal_try_remove_checkpoint(struct journal_head *jh);
--
2.53.0
next prev parent reply other threads:[~2026-09-08 16:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-03 13:59 FAILED: patch "[PATCH] jbd2: bound shrinker scans by examined checkpoint buffers" failed to apply to 5.15-stable tree gregkh
2026-09-08 16:15 ` [PATCH 5.15.y 1/3] jbd2: use shrink_type type instead of bool type for __jbd2_journal_clean_checkpoint_list() Sasha Levin
2026-09-08 16:15 ` Sasha Levin [this message]
2026-09-08 16:15 ` [PATCH 5.15.y 3/3] jbd2: bound shrinker scans by examined checkpoint buffers Sasha Levin
-- strict thread matches above, loose matches on Subject: below --
2026-09-03 13:59 FAILED: patch "[PATCH] jbd2: check need_resched() when skipping busy checkpoint" failed to apply to 5.15-stable tree gregkh
2026-09-08 16:06 ` [PATCH 5.15.y 1/3] jbd2: use shrink_type type instead of bool type for __jbd2_journal_clean_checkpoint_list() Sasha Levin
2026-09-08 16:06 ` [PATCH 5.15.y 2/3] jbd2: add prefix 'jbd2' for 'shrink_type' Sasha Levin
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