diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_attr.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr.c | 198 |
1 files changed, 90 insertions, 108 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 14ae0826bc15..836ab1b8ed7b 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -25,10 +25,9 @@ #include "xfs_trans_space.h" #include "xfs_trace.h" #include "xfs_attr_item.h" -#include "xfs_log.h" +#include "xfs_xattr.h" -struct kmem_cache *xfs_attri_cache; -struct kmem_cache *xfs_attrd_cache; +struct kmem_cache *xfs_attr_intent_cache; /* * xfs_attr.c @@ -58,11 +57,11 @@ STATIC int xfs_attr_leaf_try_add(struct xfs_da_args *args, struct xfs_buf *bp); */ STATIC int xfs_attr_node_get(xfs_da_args_t *args); STATIC void xfs_attr_restore_rmt_blk(struct xfs_da_args *args); -static int xfs_attr_node_try_addname(struct xfs_attr_item *attr); -STATIC int xfs_attr_node_addname_find_attr(struct xfs_attr_item *attr); -STATIC int xfs_attr_node_remove_attr(struct xfs_attr_item *attr); -STATIC int xfs_attr_node_hasname(xfs_da_args_t *args, - struct xfs_da_state **state); +static int xfs_attr_node_try_addname(struct xfs_attr_intent *attr); +STATIC int xfs_attr_node_addname_find_attr(struct xfs_attr_intent *attr); +STATIC int xfs_attr_node_remove_attr(struct xfs_attr_intent *attr); +STATIC int xfs_attr_node_lookup(struct xfs_da_args *args, + struct xfs_da_state *state); int xfs_inode_hasattr( @@ -377,7 +376,7 @@ xfs_attr_try_sf_addname( static int xfs_attr_sf_addname( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; struct xfs_inode *dp = args->dp; @@ -423,7 +422,7 @@ out: */ static enum xfs_delattr_state xfs_attr_complete_op( - struct xfs_attr_item *attr, + struct xfs_attr_intent *attr, enum xfs_delattr_state replace_state) { struct xfs_da_args *args = attr->xattri_da_args; @@ -439,7 +438,7 @@ xfs_attr_complete_op( static int xfs_attr_leaf_addname( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; int error; @@ -493,7 +492,7 @@ out: */ static int xfs_attr_node_addname( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; int error; @@ -530,7 +529,7 @@ out: static int xfs_attr_rmtval_alloc( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; int error = 0; @@ -594,6 +593,19 @@ xfs_attr_leaf_mark_incomplete( return xfs_attr3_leaf_setflag(args); } +/* Ensure the da state of an xattr deferred work item is ready to go. */ +static inline void +xfs_attr_item_init_da_state( + struct xfs_attr_intent *attr) +{ + struct xfs_da_args *args = attr->xattri_da_args; + + if (!attr->xattri_da_state) + attr->xattri_da_state = xfs_da_state_alloc(args); + else + xfs_da_state_reset(attr->xattri_da_state, args); +} + /* * Initial setup for xfs_attr_node_removename. Make sure the attr is there and * the blocks are valid. Attr keys with remote blocks will be marked @@ -601,29 +613,33 @@ xfs_attr_leaf_mark_incomplete( */ static int xfs_attr_node_removename_setup( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; - struct xfs_da_state **state = &attr->xattri_da_state; + struct xfs_da_state *state; int error; - error = xfs_attr_node_hasname(args, state); + xfs_attr_item_init_da_state(attr); + error = xfs_attr_node_lookup(args, attr->xattri_da_state); if (error != -EEXIST) goto out; error = 0; - ASSERT((*state)->path.blk[(*state)->path.active - 1].bp != NULL); - ASSERT((*state)->path.blk[(*state)->path.active - 1].magic == + state = attr->xattri_da_state; + ASSERT(state->path.blk[state->path.active - 1].bp != NULL); + ASSERT(state->path.blk[state->path.active - 1].magic == XFS_ATTR_LEAF_MAGIC); - error = xfs_attr_leaf_mark_incomplete(args, *state); + error = xfs_attr_leaf_mark_incomplete(args, state); if (error) goto out; if (args->rmtblkno > 0) error = xfs_attr_rmtval_invalidate(args); out: - if (error) - xfs_da_state_free(*state); + if (error) { + xfs_da_state_free(attr->xattri_da_state); + attr->xattri_da_state = NULL; + } return error; } @@ -635,7 +651,7 @@ out: */ static int xfs_attr_leaf_remove_attr( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; struct xfs_inode *dp = args->dp; @@ -700,7 +716,7 @@ xfs_attr_leaf_shrink( */ int xfs_attr_set_iter( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; int error = 0; @@ -852,6 +868,7 @@ xfs_attr_lookup( { struct xfs_inode *dp = args->dp; struct xfs_buf *bp = NULL; + struct xfs_da_state *state; int error; if (!xfs_inode_hasattr(dp)) @@ -869,19 +886,22 @@ xfs_attr_lookup( return error; } - return xfs_attr_node_hasname(args, NULL); + state = xfs_da_state_alloc(args); + error = xfs_attr_node_lookup(args, state); + xfs_da_state_free(state); + return error; } static int -xfs_attr_item_init( +xfs_attr_intent_init( struct xfs_da_args *args, unsigned int op_flags, /* op flag (set or remove) */ - struct xfs_attr_item **attr) /* new xfs_attr_item */ + struct xfs_attr_intent **attr) /* new xfs_attr_intent */ { - struct xfs_attr_item *new; + struct xfs_attr_intent *new; - new = kmem_zalloc(sizeof(struct xfs_attr_item), KM_NOFS); + new = kmem_cache_zalloc(xfs_attr_intent_cache, GFP_NOFS | __GFP_NOFAIL); new->xattri_op_flags = op_flags; new->xattri_da_args = args; @@ -894,10 +914,10 @@ static int xfs_attr_defer_add( struct xfs_da_args *args) { - struct xfs_attr_item *new; + struct xfs_attr_intent *new; int error = 0; - error = xfs_attr_item_init(args, XFS_ATTR_OP_FLAGS_SET, &new); + error = xfs_attr_intent_init(args, XFS_ATTRI_OP_FLAGS_SET, &new); if (error) return error; @@ -913,10 +933,10 @@ static int xfs_attr_defer_replace( struct xfs_da_args *args) { - struct xfs_attr_item *new; + struct xfs_attr_intent *new; int error = 0; - error = xfs_attr_item_init(args, XFS_ATTR_OP_FLAGS_REPLACE, &new); + error = xfs_attr_intent_init(args, XFS_ATTRI_OP_FLAGS_REPLACE, &new); if (error) return error; @@ -933,10 +953,10 @@ xfs_attr_defer_remove( struct xfs_da_args *args) { - struct xfs_attr_item *new; + struct xfs_attr_intent *new; int error; - error = xfs_attr_item_init(args, XFS_ATTR_OP_FLAGS_REMOVE, &new); + error = xfs_attr_intent_init(args, XFS_ATTRI_OP_FLAGS_REMOVE, &new); if (error) return error; @@ -962,7 +982,6 @@ xfs_attr_set( int error, local; int rmt_blks = 0; unsigned int total; - int delayed = xfs_has_larp(mp); if (xfs_is_shutdown(dp->i_mount)) return -EIO; @@ -1007,12 +1026,6 @@ xfs_attr_set( rmt_blks = xfs_attr3_rmt_blocks(mp, XFS_XATTR_SIZE_MAX); } - if (delayed) { - error = xfs_attr_use_log_assist(mp); - if (error) - return error; - } - /* * Root fork attributes can use reserved data blocks for this * operation if necessary @@ -1020,7 +1033,7 @@ xfs_attr_set( xfs_init_attr_trans(args, &tres, &total); error = xfs_trans_alloc_inode(dp, &tres, total, 0, rsvd, &args->trans); if (error) - goto drop_incompat; + return error; if (args->value || xfs_inode_hasattr(dp)) { error = xfs_iext_count_may_overflow(dp, XFS_ATTR_FORK, @@ -1080,9 +1093,6 @@ xfs_attr_set( error = xfs_trans_commit(args->trans); out_unlock: xfs_iunlock(dp, XFS_ILOCK_EXCL); -drop_incompat: - if (delayed) - xlog_drop_incompat_feat(mp->m_log); return error; out_trans_cancel: @@ -1091,40 +1101,6 @@ out_trans_cancel: goto out_unlock; } -int __init -xfs_attri_init_cache(void) -{ - xfs_attri_cache = kmem_cache_create("xfs_attri", - sizeof(struct xfs_attri_log_item), - 0, 0, NULL); - - return xfs_attri_cache != NULL ? 0 : -ENOMEM; -} - -void -xfs_attri_destroy_cache(void) -{ - kmem_cache_destroy(xfs_attri_cache); - xfs_attri_cache = NULL; -} - -int __init -xfs_attrd_init_cache(void) -{ - xfs_attrd_cache = kmem_cache_create("xfs_attrd", - sizeof(struct xfs_attrd_log_item), - 0, 0, NULL); - - return xfs_attrd_cache != NULL ? 0 : -ENOMEM; -} - -void -xfs_attrd_destroy_cache(void) -{ - kmem_cache_destroy(xfs_attrd_cache); - xfs_attrd_cache = NULL; -} - /*======================================================================== * External routines when attribute list is inside the inode *========================================================================*/ @@ -1384,32 +1360,20 @@ xfs_attr_leaf_get(xfs_da_args_t *args) return error; } -/* - * Return EEXIST if attr is found, or ENOATTR if not - * statep: If not null is set to point at the found state. Caller will - * be responsible for freeing the state in this case. - */ +/* Return EEXIST if attr is found, or ENOATTR if not. */ STATIC int -xfs_attr_node_hasname( +xfs_attr_node_lookup( struct xfs_da_args *args, - struct xfs_da_state **statep) + struct xfs_da_state *state) { - struct xfs_da_state *state; int retval, error; - state = xfs_da_state_alloc(args); - if (statep != NULL) - *statep = state; - /* * Search to see if name exists, and get back a pointer to it. */ error = xfs_da3_node_lookup_int(state, &retval); if (error) - retval = error; - - if (!statep) - xfs_da_state_free(state); + return error; return retval; } @@ -1420,7 +1384,7 @@ xfs_attr_node_hasname( STATIC int xfs_attr_node_addname_find_attr( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; int error; @@ -1429,7 +1393,8 @@ xfs_attr_node_addname_find_attr( * Search to see if name already exists, and get back a pointer * to where it should go. */ - error = xfs_attr_node_hasname(args, &attr->xattri_da_state); + xfs_attr_item_init_da_state(attr); + error = xfs_attr_node_lookup(args, attr->xattri_da_state); switch (error) { case -ENOATTR: if (args->op_flags & XFS_DA_OP_REPLACE) @@ -1456,8 +1421,10 @@ xfs_attr_node_addname_find_attr( return 0; error: - if (attr->xattri_da_state) + if (attr->xattri_da_state) { xfs_da_state_free(attr->xattri_da_state); + attr->xattri_da_state = NULL; + } return error; } @@ -1470,7 +1437,7 @@ error: */ static int xfs_attr_node_try_addname( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; struct xfs_da_state *state = attr->xattri_da_state; @@ -1511,6 +1478,7 @@ xfs_attr_node_try_addname( out: xfs_da_state_free(state); + attr->xattri_da_state = NULL; return error; } @@ -1535,10 +1503,10 @@ xfs_attr_node_removename( static int xfs_attr_node_remove_attr( - struct xfs_attr_item *attr) + struct xfs_attr_intent *attr) { struct xfs_da_args *args = attr->xattri_da_args; - struct xfs_da_state *state = NULL; + struct xfs_da_state *state = xfs_da_state_alloc(args); int retval = 0; int error = 0; @@ -1548,8 +1516,6 @@ xfs_attr_node_remove_attr( * attribute entry after any split ops. */ args->attr_filter |= XFS_ATTR_INCOMPLETE; - state = xfs_da_state_alloc(args); - state->inleaf = 0; error = xfs_da3_node_lookup_int(state, &retval); if (error) goto out; @@ -1567,8 +1533,7 @@ xfs_attr_node_remove_attr( retval = error = 0; out: - if (state) - xfs_da_state_free(state); + xfs_da_state_free(state); if (error) return error; return retval; @@ -1597,7 +1562,8 @@ xfs_attr_node_get( /* * Search to see if name exists, and get back a pointer to it. */ - error = xfs_attr_node_hasname(args, &state); + state = xfs_da_state_alloc(args); + error = xfs_attr_node_lookup(args, state); if (error != -EEXIST) goto out_release; @@ -1616,8 +1582,7 @@ out_release: state->path.blk[i].bp = NULL; } - if (state) - xfs_da_state_free(state); + xfs_da_state_free(state); return error; } @@ -1637,3 +1602,20 @@ xfs_attr_namecheck( /* There shouldn't be any nulls here */ return !memchr(name, 0, length); } + +int __init +xfs_attr_intent_init_cache(void) +{ + xfs_attr_intent_cache = kmem_cache_create("xfs_attr_intent", + sizeof(struct xfs_attr_intent), + 0, 0, NULL); + + return xfs_attr_intent_cache != NULL ? 0 : -ENOMEM; +} + +void +xfs_attr_intent_destroy_cache(void) +{ + kmem_cache_destroy(xfs_attr_intent_cache); + xfs_attr_intent_cache = NULL; +} |