From be55caf177e14bc54d1498d599a78849b0b230bb Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 21 Oct 2007 16:42:13 -0700 Subject: [PATCH] reiserfs: new export ops Another nice little cleanup by using the new methods. Signed-off-by: Christoph Hellwig Cc: Neil Brown Cc: "J. Bruce Fields" Cc: Chris Mason Cc: Jeff Mahoney Cc: "Vladimir V. Saveliev" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/reiserfs/inode.c | 62 ++++++++++++++++--------------------- fs/reiserfs/super.c | 4 +-- include/linux/reiserfs_fs.h | 12 +++---- 3 files changed, 35 insertions(+), 43 deletions(-) diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index a991af96f3f0..231fd5ccadc5 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -1515,19 +1515,20 @@ struct inode *reiserfs_iget(struct super_block *s, const struct cpu_key *key) return inode; } -struct dentry *reiserfs_get_dentry(struct super_block *sb, void *vobjp) +static struct dentry *reiserfs_get_dentry(struct super_block *sb, + u32 objectid, u32 dir_id, u32 generation) + { - __u32 *data = vobjp; struct cpu_key key; struct dentry *result; struct inode *inode; - key.on_disk_key.k_objectid = data[0]; - key.on_disk_key.k_dir_id = data[1]; + key.on_disk_key.k_objectid = objectid; + key.on_disk_key.k_dir_id = dir_id; reiserfs_write_lock(sb); inode = reiserfs_iget(sb, &key); - if (inode && !IS_ERR(inode) && data[2] != 0 && - data[2] != inode->i_generation) { + if (inode && !IS_ERR(inode) && generation != 0 && + generation != inode->i_generation) { iput(inode); inode = NULL; } @@ -1544,14 +1545,9 @@ struct dentry *reiserfs_get_dentry(struct super_block *sb, void *vobjp) return result; } -struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data, - int len, int fhtype, - int (*acceptable) (void *contect, - struct dentry * de), - void *context) +struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type) { - __u32 obj[3], parent[3]; - /* fhtype happens to reflect the number of u32s encoded. * due to a bug in earlier code, fhtype might indicate there * are more u32s then actually fitted. @@ -1564,32 +1560,28 @@ struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data, * 6 - as above plus generation of directory * 6 does not fit in NFSv2 handles */ - if (fhtype > len) { - if (fhtype != 6 || len != 5) + if (fh_type > fh_len) { + if (fh_type != 6 || fh_len != 5) reiserfs_warning(sb, - "nfsd/reiserfs, fhtype=%d, len=%d - odd", - fhtype, len); - fhtype = 5; + "nfsd/reiserfs, fhtype=%d, len=%d - odd", + fh_type, fh_len); + fh_type = 5; } - obj[0] = data[0]; - obj[1] = data[1]; - if (fhtype == 3 || fhtype >= 5) - obj[2] = data[2]; - else - obj[2] = 0; /* generation number */ + return reiserfs_get_dentry(sb, fid->raw[0], fid->raw[1], + (fh_type == 3 || fh_type >= 5) ? fid->raw[2] : 0); +} - if (fhtype >= 4) { - parent[0] = data[fhtype >= 5 ? 3 : 2]; - parent[1] = data[fhtype >= 5 ? 4 : 3]; - if (fhtype == 6) - parent[2] = data[5]; - else - parent[2] = 0; - } - return sb->s_export_op->find_exported_dentry(sb, obj, - fhtype < 4 ? NULL : parent, - acceptable, context); +struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type) +{ + if (fh_type < 4) + return NULL; + + return reiserfs_get_dentry(sb, + (fh_type >= 5) ? fid->raw[3] : fid->raw[2], + (fh_type >= 5) ? fid->raw[4] : fid->raw[3], + (fh_type == 6) ? fid->raw[5] : 0); } int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp, diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 98c3781bc069..708269f75206 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -663,9 +663,9 @@ static struct quotactl_ops reiserfs_qctl_operations = { static struct export_operations reiserfs_export_ops = { .encode_fh = reiserfs_encode_fh, - .decode_fh = reiserfs_decode_fh, + .fh_to_dentry = reiserfs_fh_to_dentry, + .fh_to_parent = reiserfs_fh_to_parent, .get_parent = reiserfs_get_parent, - .get_dentry = reiserfs_get_dentry, }; /* this struct is used in reiserfs_getopt () for containing the value for those diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index 72bfccd3da22..422eab4958a6 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -28,6 +28,8 @@ #include #endif +struct fid; + /* * include/linux/reiser_fs.h * @@ -1877,12 +1879,10 @@ void reiserfs_delete_inode(struct inode *inode); int reiserfs_write_inode(struct inode *inode, int); int reiserfs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create); -struct dentry *reiserfs_get_dentry(struct super_block *, void *); -struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data, - int len, int fhtype, - int (*acceptable) (void *contect, - struct dentry * de), - void *context); +struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type); +struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type); int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp, int connectable); -- 2.20.1