From 3558fd73b5d863304102f6745c26e0b592aca60a Mon Sep 17 00:00:00 2001 From: Brian Behlendorf Date: Tue, 8 Feb 2011 11:16:06 -0800 Subject: Prototype/structure update for Linux I appologize in advance why to many things ended up in this commit. When it could be seperated in to a whole series of commits teasing that all apart now would take considerable time and I'm not sure there's much merrit in it. As such I'll just summerize the intent of the changes which are all (or partly) in this commit. Broadly the intent is to remove as much Solaris specific code as possible and replace it with native Linux equivilants. More specifically: 1) Replace all instances of zfsvfs_t with zfs_sb_t. While the type is largely the same calling it private super block data rather than a zfsvfs is more consistent with how Linux names this. While non critical it makes the code easier to read when your thinking in Linux friendly VFS terms. 2) Replace vnode_t with struct inode. The Linux VFS doesn't have the notion of a vnode and there's absolutely no good reason to create one. There are in fact several good reasons to remove it. It just adds overhead on Linux if we were to manage one, it conplicates the code, and it likely will lead to bugs so there's a good change it will be out of date. The code has been updated to remove all need for this type. 3) Replace all vtype_t's with umode types. Along with this shift all uses of types to mode bits. The Solaris code would pass a vtype which is redundant with the Linux mode. Just update all the code to use the Linux mode macros and remove this redundancy. 4) Remove using of vn_* helpers and replace where needed with inode helpers. The big example here is creating iput_aync to replace vn_rele_async. Other vn helpers will be addressed as needed but they should be be emulated. They are a Solaris VFS'ism and should simply be replaced with Linux equivilants. 5) Update znode alloc/free code. Under Linux it's common to embed the inode specific data with the inode itself. This removes the need for an extra memory allocation. In zfs this information is called a znode and it now embeds the inode with it. Allocators have been updated accordingly. 6) Minimal integration with the vfs flags for setting up the super block and handling mount options has been added this code will need to be refined but functionally it's all there. This will be the first and last of these to large to review commits. --- include/sys/zfs_fuid.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include/sys/zfs_fuid.h') diff --git a/include/sys/zfs_fuid.h b/include/sys/zfs_fuid.h index 91650a22d..deaebcc82 100644 --- a/include/sys/zfs_fuid.h +++ b/include/sys/zfs_fuid.h @@ -100,24 +100,24 @@ typedef struct zfs_fuid_info { #ifdef _KERNEL struct znode; -extern uid_t zfs_fuid_map_id(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t); +extern uid_t zfs_fuid_map_id(zfs_sb_t *, uint64_t, cred_t *, zfs_fuid_type_t); extern void zfs_fuid_node_add(zfs_fuid_info_t **, const char *, uint32_t, uint64_t, uint64_t, zfs_fuid_type_t); -extern void zfs_fuid_destroy(zfsvfs_t *); -extern uint64_t zfs_fuid_create_cred(zfsvfs_t *, zfs_fuid_type_t, +extern void zfs_fuid_destroy(zfs_sb_t *); +extern uint64_t zfs_fuid_create_cred(zfs_sb_t *, zfs_fuid_type_t, cred_t *, zfs_fuid_info_t **); -extern uint64_t zfs_fuid_create(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t, +extern uint64_t zfs_fuid_create(zfs_sb_t *, uint64_t, cred_t *, zfs_fuid_type_t, zfs_fuid_info_t **); extern void zfs_fuid_map_ids(struct znode *zp, cred_t *cr, uid_t *uid, uid_t *gid); extern zfs_fuid_info_t *zfs_fuid_info_alloc(void); extern void zfs_fuid_info_free(zfs_fuid_info_t *); -extern boolean_t zfs_groupmember(zfsvfs_t *, uint64_t, cred_t *); -void zfs_fuid_sync(zfsvfs_t *, dmu_tx_t *); -extern int zfs_fuid_find_by_domain(zfsvfs_t *, const char *domain, +extern boolean_t zfs_groupmember(zfs_sb_t *, uint64_t, cred_t *); +void zfs_fuid_sync(zfs_sb_t *, dmu_tx_t *); +extern int zfs_fuid_find_by_domain(zfs_sb_t *, const char *domain, char **retdomain, boolean_t addok); -extern const char *zfs_fuid_find_by_idx(zfsvfs_t *zfsvfs, uint32_t idx); -extern void zfs_fuid_txhold(zfsvfs_t *zfsvfs, dmu_tx_t *tx); +extern const char *zfs_fuid_find_by_idx(zfs_sb_t *zsb, uint32_t idx); +extern void zfs_fuid_txhold(zfs_sb_t *zsb, dmu_tx_t *tx); #endif char *zfs_fuid_idx_domain(avl_tree_t *, uint32_t); -- cgit v1.2.3