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| author | zhangyi (F) <yi.zhang@huawei.com> | 2020-02-13 14:38:20 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-02-13 12:06:17 -0500 |
| commit | 6a66a7ded12baa6ebbb2e3e82f8cb91382814839 (patch) | |
| tree | 55c1cdee9de02c6464af879e02ac3c1cf0783792 /fs/jbd2/commit.c | |
| parent | af133ade9a40794a37104ecbcc2827c0ea373a3c (diff) | |
| download | linux-6a66a7ded12baa6ebbb2e3e82f8cb91382814839.tar.gz linux-6a66a7ded12baa6ebbb2e3e82f8cb91382814839.tar.bz2 linux-6a66a7ded12baa6ebbb2e3e82f8cb91382814839.zip | |
jbd2: move the clearing of b_modified flag to the journal_unmap_buffer()
There is no need to delay the clearing of b_modified flag to the
transaction committing time when unmapping the journalled buffer, so
just move it to the journal_unmap_buffer().
Link: https://lore.kernel.org/r/20200213063821.30455-2-yi.zhang@huawei.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Diffstat (limited to 'fs/jbd2/commit.c')
| -rw-r--r-- | fs/jbd2/commit.c | 43 |
1 files changed, 15 insertions, 28 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 2494095e0340..6396fe70085b 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -976,34 +976,21 @@ restart_loop: * it. */ /* - * A buffer which has been freed while still being journaled by - * a previous transaction. - */ - if (buffer_freed(bh)) { - /* - * If the running transaction is the one containing - * "add to orphan" operation (b_next_transaction != - * NULL), we have to wait for that transaction to - * commit before we can really get rid of the buffer. - * So just clear b_modified to not confuse transaction - * credit accounting and refile the buffer to - * BJ_Forget of the running transaction. If the just - * committed transaction contains "add to orphan" - * operation, we can completely invalidate the buffer - * now. We are rather through in that since the - * buffer may be still accessible when blocksize < - * pagesize and it is attached to the last partial - * page. - */ - jh->b_modified = 0; - if (!jh->b_next_transaction) { - clear_buffer_freed(bh); - clear_buffer_jbddirty(bh); - clear_buffer_mapped(bh); - clear_buffer_new(bh); - clear_buffer_req(bh); - bh->b_bdev = NULL; - } + * A buffer which has been freed while still being journaled + * by a previous transaction, refile the buffer to BJ_Forget of + * the running transaction. If the just committed transaction + * contains "add to orphan" operation, we can completely + * invalidate the buffer now. We are rather through in that + * since the buffer may be still accessible when blocksize < + * pagesize and it is attached to the last partial page. + */ + if (buffer_freed(bh) && !jh->b_next_transaction) { + clear_buffer_freed(bh); + clear_buffer_jbddirty(bh); + clear_buffer_mapped(bh); + clear_buffer_new(bh); + clear_buffer_req(bh); + bh->b_bdev = NULL; } if (buffer_jbddirty(bh)) { |