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author | Jason Gunthorpe <jgg@mellanox.com> | 2018-07-04 11:32:06 +0300 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-07-09 11:26:17 -0600 |
commit | c33e73af2183fb9fcd993e37abcdecc058b22d91 (patch) | |
tree | f85591d06f6362c845a38f8473be7916ee238822 /drivers/infiniband/core/uverbs_cmd.c | |
parent | RDMA/uverbs: Combine MIN_SZ_OR_ZERO with UVERBS_ATTR_STRUCT (diff) | |
download | linux-dev-c33e73af2183fb9fcd993e37abcdecc058b22d91.tar.xz linux-dev-c33e73af2183fb9fcd993e37abcdecc058b22d91.zip |
IB/uverbs: Add a uobj_perform_destroy helper
This consolidates a bunch of repeated code patterns into a helper.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/uverbs_cmd.c')
-rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 76 |
1 files changed, 14 insertions, 62 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 5d0fd36b009d..b751c196e2c6 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -367,20 +367,12 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, int in_len, int out_len) { struct ib_uverbs_dealloc_pd cmd; - struct ib_uobject *uobj; - int ret; if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - uobj = uobj_get_write(UVERBS_OBJECT_PD, cmd.pd_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - ret = uobj_remove_commit(uobj); - - return ret ?: in_len; + return uobj_perform_destroy(UVERBS_OBJECT_PD, cmd.pd_handle, file, + in_len); } struct xrcd_table_entry { @@ -597,19 +589,12 @@ ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file, int out_len) { struct ib_uverbs_close_xrcd cmd; - struct ib_uobject *uobj; - int ret = 0; if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - uobj = uobj_get_write(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - ret = uobj_remove_commit(uobj); - return ret ?: in_len; + return uobj_perform_destroy(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, file, + in_len); } int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, @@ -829,20 +814,12 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, int out_len) { struct ib_uverbs_dereg_mr cmd; - struct ib_uobject *uobj; - int ret = -EINVAL; if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - ret = uobj_remove_commit(uobj); - - return ret ?: in_len; + return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, file, + in_len); } ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file, @@ -921,19 +898,12 @@ ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file, int out_len) { struct ib_uverbs_dealloc_mw cmd; - struct ib_uobject *uobj; - int ret = -EINVAL; if (copy_from_user(&cmd, buf, sizeof(cmd))) return -EFAULT; - uobj = uobj_get_write(UVERBS_OBJECT_MW, cmd.mw_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - ret = uobj_remove_commit(uobj); - return ret ?: in_len; + return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, file, + in_len); } ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file, @@ -2641,19 +2611,12 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file, const char __user *buf, int in_len, int out_len) { struct ib_uverbs_destroy_ah cmd; - struct ib_uobject *uobj; - int ret; if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - uobj = uobj_get_write(UVERBS_OBJECT_AH, cmd.ah_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - ret = uobj_remove_commit(uobj); - return ret ?: in_len; + return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, file, + in_len); } ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file, @@ -3445,7 +3408,6 @@ int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file, struct ib_udata *uhw) { struct ib_uverbs_ex_destroy_rwq_ind_table cmd = {}; - struct ib_uobject *uobj; int ret; size_t required_cmd_sz; @@ -3466,12 +3428,8 @@ int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file, if (cmd.comp_mask) return -EOPNOTSUPP; - uobj = uobj_get_write(UVERBS_OBJECT_RWQ_IND_TBL, cmd.ind_tbl_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - return uobj_remove_commit(uobj); + return uobj_perform_destroy(UVERBS_OBJECT_RWQ_IND_TBL, + cmd.ind_tbl_handle, file, 0); } int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, @@ -3658,7 +3616,6 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, struct ib_udata *uhw) { struct ib_uverbs_destroy_flow cmd; - struct ib_uobject *uobj; int ret; if (ucore->inlen < sizeof(cmd)) @@ -3671,13 +3628,8 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, if (cmd.comp_mask) return -EINVAL; - uobj = uobj_get_write(UVERBS_OBJECT_FLOW, cmd.flow_handle, - file->ucontext); - if (IS_ERR(uobj)) - return PTR_ERR(uobj); - - ret = uobj_remove_commit(uobj); - return ret; + return uobj_perform_destroy(UVERBS_OBJECT_FLOW, cmd.flow_handle, file, + 0); } static int __uverbs_create_xsrq(struct ib_uverbs_file *file, |