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author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-09-10 17:50:51 -0700 |
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committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-10-12 11:54:37 -0700 |
commit | 5eae5b96fc86e6c85f5f90e90fe9e6966f1fec63 (patch) | |
tree | f9ab0815a6b0ee9c181a17e304abb8386bd09843 | |
parent | 7e8536797d4508ddc790cc3af6a281db1582d485 (diff) | |
download | op-kernel-dev-5eae5b96fc86e6c85f5f90e90fe9e6966f1fec63.zip op-kernel-dev-5eae5b96fc86e6c85f5f90e90fe9e6966f1fec63.tar.gz |
ocfs2: Remove open coded readdir()
ocfs2_queue_orphans() has an open coded readdir loop which can easily just
use a directory accessor function.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Reviewed-by: Joel Becker <joel.becker@oracle.com>
-rw-r--r-- | fs/ocfs2/dir.c | 28 | ||||
-rw-r--r-- | fs/ocfs2/dir.h | 7 | ||||
-rw-r--r-- | fs/ocfs2/journal.c | 118 |
3 files changed, 70 insertions, 83 deletions
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index dbfa6f6..a75c340 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -81,10 +81,10 @@ static int ocfs2_do_extend_dir(struct super_block *sb, struct ocfs2_alloc_context *meta_ac, struct buffer_head **new_bh); -int ocfs2_check_dir_entry(struct inode * dir, - struct ocfs2_dir_entry * de, - struct buffer_head * bh, - unsigned long offset) +static int ocfs2_check_dir_entry(struct inode * dir, + struct ocfs2_dir_entry * de, + struct buffer_head * bh, + unsigned long offset) { const char *error_msg = NULL; const int rlen = le16_to_cpu(de->rec_len); @@ -532,6 +532,26 @@ out: } /* + * This is intended to be called from inside other kernel functions, + * so we fake some arguments. + */ +int ocfs2_dir_foreach(struct inode *inode, loff_t *f_pos, void *priv, + filldir_t filldir) +{ + int ret = 0; + unsigned long version = inode->i_version; + + while (*f_pos < i_size_read(inode)) { + ret = ocfs2_dir_foreach_blk(inode, &version, f_pos, priv, + filldir); + if (ret) + break; + } + + return 0; +} + +/* * ocfs2_readdir() * */ diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h index 7bf9c0a..075d0e9 100644 --- a/fs/ocfs2/dir.h +++ b/fs/ocfs2/dir.h @@ -62,6 +62,8 @@ int ocfs2_find_files_on_disk(const char *name, struct buffer_head **dirent_bh, struct ocfs2_dir_entry **dirent); int ocfs2_readdir(struct file *filp, void *dirent, filldir_t filldir); +int ocfs2_dir_foreach(struct inode *inode, loff_t *f_pos, void *priv, + filldir_t filldir); int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb, struct inode *dir, struct buffer_head *parent_fe_bh, @@ -76,9 +78,4 @@ int ocfs2_fill_new_dir(struct ocfs2_super *osb, struct buffer_head *fe_bh, struct ocfs2_alloc_context *data_ac); -int ocfs2_check_dir_entry(struct inode *dir, - struct ocfs2_dir_entry *de, - struct buffer_head *bh, - unsigned long offset); - #endif /* OCFS2_DIR_H */ diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index 8bbfc80..f9d01e2 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1213,17 +1213,49 @@ bail: return status; } +struct ocfs2_orphan_filldir_priv { + struct inode *head; + struct ocfs2_super *osb; +}; + +static int ocfs2_orphan_filldir(void *priv, const char *name, int name_len, + loff_t pos, u64 ino, unsigned type) +{ + struct ocfs2_orphan_filldir_priv *p = priv; + struct inode *iter; + + if (name_len == 1 && !strncmp(".", name, 1)) + return 0; + if (name_len == 2 && !strncmp("..", name, 2)) + return 0; + + /* Skip bad inodes so that recovery can continue */ + iter = ocfs2_iget(p->osb, ino, + OCFS2_FI_FLAG_ORPHAN_RECOVERY); + if (IS_ERR(iter)) + return 0; + + mlog(0, "queue orphan %llu\n", + (unsigned long long)OCFS2_I(iter)->ip_blkno); + /* No locking is required for the next_orphan queue as there + * is only ever a single process doing orphan recovery. */ + OCFS2_I(iter)->ip_next_orphan = p->head; + p->head = iter; + + return 0; +} + static int ocfs2_queue_orphans(struct ocfs2_super *osb, int slot, struct inode **head) { int status; struct inode *orphan_dir_inode = NULL; - struct inode *iter; - unsigned long offset, blk, local; - struct buffer_head *bh = NULL; - struct ocfs2_dir_entry *de; - struct super_block *sb = osb->sb; + struct ocfs2_orphan_filldir_priv priv; + loff_t pos = 0; + + priv.osb = osb; + priv.head = *head; orphan_dir_inode = ocfs2_get_system_file_inode(osb, ORPHAN_DIR_SYSTEM_INODE, @@ -1241,77 +1273,15 @@ static int ocfs2_queue_orphans(struct ocfs2_super *osb, goto out; } - offset = 0; - iter = NULL; - while(offset < i_size_read(orphan_dir_inode)) { - blk = offset >> sb->s_blocksize_bits; - - bh = ocfs2_bread(orphan_dir_inode, blk, &status, 0); - if (!bh) - status = -EINVAL; - if (status < 0) { - if (bh) - brelse(bh); - mlog_errno(status); - goto out_unlock; - } - - local = 0; - while(offset < i_size_read(orphan_dir_inode) - && local < sb->s_blocksize) { - de = (struct ocfs2_dir_entry *) (bh->b_data + local); - - if (!ocfs2_check_dir_entry(orphan_dir_inode, - de, bh, local)) { - status = -EINVAL; - mlog_errno(status); - brelse(bh); - goto out_unlock; - } - - local += le16_to_cpu(de->rec_len); - offset += le16_to_cpu(de->rec_len); - - /* I guess we silently fail on no inode? */ - if (!le64_to_cpu(de->inode)) - continue; - if (de->file_type > OCFS2_FT_MAX) { - mlog(ML_ERROR, - "block %llu contains invalid de: " - "inode = %llu, rec_len = %u, " - "name_len = %u, file_type = %u, " - "name='%.*s'\n", - (unsigned long long)bh->b_blocknr, - (unsigned long long)le64_to_cpu(de->inode), - le16_to_cpu(de->rec_len), - de->name_len, - de->file_type, - de->name_len, - de->name); - continue; - } - if (de->name_len == 1 && !strncmp(".", de->name, 1)) - continue; - if (de->name_len == 2 && !strncmp("..", de->name, 2)) - continue; - - iter = ocfs2_iget(osb, le64_to_cpu(de->inode), - OCFS2_FI_FLAG_ORPHAN_RECOVERY); - if (IS_ERR(iter)) - continue; - - mlog(0, "queue orphan %llu\n", - (unsigned long long)OCFS2_I(iter)->ip_blkno); - /* No locking is required for the next_orphan - * queue as there is only ever a single - * process doing orphan recovery. */ - OCFS2_I(iter)->ip_next_orphan = *head; - *head = iter; - } - brelse(bh); + status = ocfs2_dir_foreach(orphan_dir_inode, &pos, &priv, + ocfs2_orphan_filldir); + if (status) { + mlog_errno(status); + goto out; } -out_unlock: + *head = priv.head; + ocfs2_meta_unlock(orphan_dir_inode, 0); out: mutex_unlock(&orphan_dir_inode->i_mutex); |