From 9749fee83f38fca8dbe67161a033db22e3c4a2dd Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Wed, 3 Aug 2016 11:14:35 +1000 Subject: xfs: enable the xfs_defer mechanism to process extents to free Connect the xfs_defer mechanism with the pieces that we'll need to handle deferred extent freeing. We'll wire up the existing code to our new deferred mechanism later. Signed-off-by: Darrick J. Wong Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_trans_extfree.c | 110 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) (limited to 'fs/xfs/xfs_trans_extfree.c') diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c index 380cc4631119..a9f34ee52ab4 100644 --- a/fs/xfs/xfs_trans_extfree.c +++ b/fs/xfs/xfs_trans_extfree.c @@ -22,10 +22,12 @@ #include "xfs_log_format.h" #include "xfs_trans_resv.h" #include "xfs_mount.h" +#include "xfs_defer.h" #include "xfs_trans.h" #include "xfs_trans_priv.h" #include "xfs_extfree_item.h" #include "xfs_alloc.h" +#include "xfs_bmap.h" /* * This routine is called to allocate an "extent free intention" @@ -145,3 +147,111 @@ xfs_trans_free_extent( return error; } + +/* Sort bmap items by AG. */ +static int +xfs_extent_free_diff_items( + void *priv, + struct list_head *a, + struct list_head *b) +{ + struct xfs_mount *mp = priv; + struct xfs_bmap_free_item *ra; + struct xfs_bmap_free_item *rb; + + ra = container_of(a, struct xfs_bmap_free_item, xbfi_list); + rb = container_of(b, struct xfs_bmap_free_item, xbfi_list); + return XFS_FSB_TO_AGNO(mp, ra->xbfi_startblock) - + XFS_FSB_TO_AGNO(mp, rb->xbfi_startblock); +} + +/* Get an EFI. */ +STATIC void * +xfs_extent_free_create_intent( + struct xfs_trans *tp, + unsigned int count) +{ + return xfs_trans_get_efi(tp, count); +} + +/* Log a free extent to the intent item. */ +STATIC void +xfs_extent_free_log_item( + struct xfs_trans *tp, + void *intent, + struct list_head *item) +{ + struct xfs_bmap_free_item *free; + + free = container_of(item, struct xfs_bmap_free_item, xbfi_list); + xfs_trans_log_efi_extent(tp, intent, free->xbfi_startblock, + free->xbfi_blockcount); +} + +/* Get an EFD so we can process all the free extents. */ +STATIC void * +xfs_extent_free_create_done( + struct xfs_trans *tp, + void *intent, + unsigned int count) +{ + return xfs_trans_get_efd(tp, intent, count); +} + +/* Process a free extent. */ +STATIC int +xfs_extent_free_finish_item( + struct xfs_trans *tp, + struct xfs_defer_ops *dop, + struct list_head *item, + void *done_item, + void **state) +{ + struct xfs_bmap_free_item *free; + int error; + + free = container_of(item, struct xfs_bmap_free_item, xbfi_list); + error = xfs_trans_free_extent(tp, done_item, + free->xbfi_startblock, + free->xbfi_blockcount); + kmem_free(free); + return error; +} + +/* Abort all pending EFIs. */ +STATIC void +xfs_extent_free_abort_intent( + void *intent) +{ + xfs_efi_release(intent); +} + +/* Cancel a free extent. */ +STATIC void +xfs_extent_free_cancel_item( + struct list_head *item) +{ + struct xfs_bmap_free_item *free; + + free = container_of(item, struct xfs_bmap_free_item, xbfi_list); + kmem_free(free); +} + +static const struct xfs_defer_op_type xfs_extent_free_defer_type = { + .type = XFS_DEFER_OPS_TYPE_FREE, + .max_items = XFS_EFI_MAX_FAST_EXTENTS, + .diff_items = xfs_extent_free_diff_items, + .create_intent = xfs_extent_free_create_intent, + .abort_intent = xfs_extent_free_abort_intent, + .log_item = xfs_extent_free_log_item, + .create_done = xfs_extent_free_create_done, + .finish_item = xfs_extent_free_finish_item, + .cancel_item = xfs_extent_free_cancel_item, +}; + +/* Register the deferred op type. */ +void +xfs_extent_free_init_defer_op(void) +{ + xfs_defer_init_op_type(&xfs_extent_free_defer_type); +} -- cgit v1.2.3