diff options
| author | Christoph Hellwig <hch@lst.de> | 2008-04-30 00:54:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:29:51 -0700 |
| commit | 86098fa0115358abf5159093d11ddb306ce4b0da (patch) | |
| tree | 7a927fb77339a594608baf0ed2507085056bd262 | |
| parent | 4dbf930ed6c1f8aa992937d0461f8f70d4004aad (diff) | |
reiserfs: use open_bdev_excl
Use the proper helper to open a blockdevice by name for filesystem use,
this makes sure it's properly claimed (also added for open-by-number) and
gets rid of the struct file abuse.
Tested by mounting a reiserfs filesystem with external journal.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Acked-by: Edward Shishkin <edward.shishkin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/reiserfs/journal.c | 50 | ||||
| -rw-r--r-- | include/linux/reiserfs_fs_sb.h | 1 |
2 files changed, 23 insertions, 28 deletions
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index da86042b3e03..e396b2fa4743 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -2574,11 +2574,9 @@ static int release_journal_dev(struct super_block *super, result = 0; - if (journal->j_dev_file != NULL) { - result = filp_close(journal->j_dev_file, NULL); - journal->j_dev_file = NULL; - journal->j_dev_bd = NULL; - } else if (journal->j_dev_bd != NULL) { + if (journal->j_dev_bd != NULL) { + if (journal->j_dev_bd->bd_dev != super->s_dev) + bd_release(journal->j_dev_bd); result = blkdev_put(journal->j_dev_bd); journal->j_dev_bd = NULL; } @@ -2603,7 +2601,6 @@ static int journal_init_dev(struct super_block *super, result = 0; journal->j_dev_bd = NULL; - journal->j_dev_file = NULL; jdev = SB_ONDISK_JOURNAL_DEVICE(super) ? new_decode_dev(SB_ONDISK_JOURNAL_DEVICE(super)) : super->s_dev; @@ -2620,35 +2617,34 @@ static int journal_init_dev(struct super_block *super, "cannot init journal device '%s': %i", __bdevname(jdev, b), result); return result; - } else if (jdev != super->s_dev) + } else if (jdev != super->s_dev) { + result = bd_claim(journal->j_dev_bd, journal); + if (result) { + blkdev_put(journal->j_dev_bd); + return result; + } + set_blocksize(journal->j_dev_bd, super->s_blocksize); + } + return 0; } - journal->j_dev_file = filp_open(jdev_name, 0, 0); - if (!IS_ERR(journal->j_dev_file)) { - struct inode *jdev_inode = journal->j_dev_file->f_mapping->host; - if (!S_ISBLK(jdev_inode->i_mode)) { - reiserfs_warning(super, "journal_init_dev: '%s' is " - "not a block device", jdev_name); - result = -ENOTBLK; - release_journal_dev(super, journal); - } else { - /* ok */ - journal->j_dev_bd = I_BDEV(jdev_inode); - set_blocksize(journal->j_dev_bd, super->s_blocksize); - reiserfs_info(super, - "journal_init_dev: journal device: %s\n", - bdevname(journal->j_dev_bd, b)); - } - } else { - result = PTR_ERR(journal->j_dev_file); - journal->j_dev_file = NULL; + journal->j_dev_bd = open_bdev_excl(jdev_name, 0, journal); + if (IS_ERR(journal->j_dev_bd)) { + result = PTR_ERR(journal->j_dev_bd); + journal->j_dev_bd = NULL; reiserfs_warning(super, "journal_init_dev: Cannot open '%s': %i", jdev_name, result); + return result; } - return result; + + set_blocksize(journal->j_dev_bd, super->s_blocksize); + reiserfs_info(super, + "journal_init_dev: journal device: %s\n", + bdevname(journal->j_dev_bd, b)); + return 0; } /** diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h index db5ef9b83c3f..336ee43ed7d8 100644 --- a/include/linux/reiserfs_fs_sb.h +++ b/include/linux/reiserfs_fs_sb.h @@ -177,7 +177,6 @@ struct reiserfs_journal { struct reiserfs_journal_cnode *j_last; /* newest journal block */ struct reiserfs_journal_cnode *j_first; /* oldest journal block. start here for traverse */ - struct file *j_dev_file; struct block_device *j_dev_bd; int j_1st_reserved_block; /* first block on s_dev of reserved area journal */ |