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jbd2: Fix comment describing journal_init_common()

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The code indicates that journal_init_common() fills the journal_t object
it returns while the comment incorrectly states that only a few fields are
initialised.  Also, the comment claims that journal structures could be
created from scratch which isn't possible as journal_init_common() calls
journal_load_superblock() which loads and checks journal superblock from
disk.

Signed-off-by: Daniel Martín Gómez <dalme@riseup.net>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://patch.msgid.link/20241107144538.3544-1-dalme@riseup.net
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Daniel Martín Gómez 2024-11-07 15:45:38 +01:00 committed by Theodore Ts'o
parent e06a8c24f6
commit 3e7c69cdb0
1 changed files with 4 additions and 3 deletions
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7
fs/jbd2/journal.c
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@ -1512,9 +1512,10 @@ static int journal_load_superblock(journal_t *journal)
* destroy journal_t structures, and to initialise and read existing
* journal blocks from disk. */
/* First: create and setup a journal_t object in memory. We initialise
* very few fields yet: that has to wait until we have created the
* journal structures from from scratch, or loaded them from disk. */
/* The journal_init_common() function creates and fills a journal_t object
* in memory. It calls journal_load_superblock() to load the on-disk journal
* superblock and initialize the journal_t object.
*/
static journal_t *journal_init_common(struct block_device *bdev,
struct block_device *fs_dev,