diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 45 |
1 files changed, 22 insertions, 23 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index c4d7a9241dc3..5b6fcb9b44e2 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -353,20 +353,17 @@ xfs_btree_free_block( */ void xfs_btree_del_cursor( - xfs_btree_cur_t *cur, /* btree cursor */ - int error) /* del because of error */ + struct xfs_btree_cur *cur, /* btree cursor */ + int error) /* del because of error */ { - int i; /* btree level */ + int i; /* btree level */ /* - * Clear the buffer pointers, and release the buffers. - * If we're doing this in the face of an error, we - * need to make sure to inspect all of the entries - * in the bc_bufs array for buffers to be unlocked. - * This is because some of the btree code works from - * level n down to 0, and if we get an error along - * the way we won't have initialized all the entries - * down to 0. + * Clear the buffer pointers and release the buffers. If we're doing + * this because of an error, inspect all of the entries in the bc_bufs + * array for buffers to be unlocked. This is because some of the btree + * code works from level n down to 0, and if we get an error along the + * way we won't have initialized all the entries down to 0. */ for (i = 0; i < cur->bc_nlevels; i++) { if (cur->bc_bufs[i]) @@ -374,17 +371,11 @@ xfs_btree_del_cursor( else if (!error) break; } - /* - * Can't free a bmap cursor without having dealt with the - * allocated indirect blocks' accounting. - */ - ASSERT(cur->bc_btnum != XFS_BTNUM_BMAP || - cur->bc_ino.allocated == 0); - /* - * Free the cursor. - */ + + ASSERT(cur->bc_btnum != XFS_BTNUM_BMAP || cur->bc_ino.allocated == 0 || + XFS_FORCED_SHUTDOWN(cur->bc_mp)); if (unlikely(cur->bc_flags & XFS_BTREE_STAGING)) - kmem_free((void *)cur->bc_ops); + kmem_free(cur->bc_ops); kmem_cache_free(xfs_btree_cur_zone, cur); } @@ -2814,7 +2805,7 @@ xfs_btree_split_worker( struct xfs_btree_split_args *args = container_of(work, struct xfs_btree_split_args, work); unsigned long pflags; - unsigned long new_pflags = PF_MEMALLOC_NOFS; + unsigned long new_pflags = 0; /* * we are in a transaction context here, but may also be doing work @@ -2826,12 +2817,20 @@ xfs_btree_split_worker( new_pflags |= PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD; current_set_flags_nested(&pflags, new_pflags); + xfs_trans_set_context(args->cur->bc_tp); args->result = __xfs_btree_split(args->cur, args->level, args->ptrp, args->key, args->curp, args->stat); - complete(args->done); + xfs_trans_clear_context(args->cur->bc_tp); current_restore_flags_nested(&pflags, new_pflags); + + /* + * Do not access args after complete() has run here. We don't own args + * and the owner may run and free args before we return here. + */ + complete(args->done); + } /* |