diff options
| author | wang di <di.wang@intel.com> | 2016-08-16 20:19:27 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-21 13:57:39 (GMT) |
| commit | 049e215e0e2b9855c4ccfd9d559be127355b570f (patch) | |
| tree | 23ef06bf266f79f5d47b3896e9aafa985385115f /drivers/staging/lustre | |
| parent | a043a1020f26d400c8f5d195308466813df969a7 (diff) | |
| download | linux-049e215e0e2b9855c4ccfd9d559be127355b570f.tar.xz | |
staging: lustre: obd: implement md_read_page
This patch adds md_read_page which is a new more
flexiable api that will replace md_readpage.
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/obd.h | 13 | ||||
| -rw-r--r-- | drivers/staging/lustre/lustre/include/obd_class.h | 15 |
2 files changed, 27 insertions, 1 deletions
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index e91f65a..92eebff 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -830,6 +830,15 @@ struct md_op_data { struct lustre_handle op_lease_handle; }; +#define op_stripe_offset op_ioepoch +#define op_max_pages op_valid + +struct md_callback { + int (*md_blocking_ast)(struct ldlm_lock *lock, + struct ldlm_lock_desc *desc, + void *data, int flag); +}; + enum op_cli_flags { CLI_SET_MEA = 1 << 0, CLI_RM_ENTRY = 1 << 1, @@ -1039,7 +1048,9 @@ struct md_ops { struct ptlrpc_request **); int (*readpage)(struct obd_export *, struct md_op_data *, struct page **, struct ptlrpc_request **); - + int (*read_page)(struct obd_export *, struct md_op_data *, + struct md_callback *cb_op, __u64 hash_offset, + struct page **ppage); int (*unlink)(struct obd_export *, struct md_op_data *, struct ptlrpc_request **); diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h index 69b628b..daca5a0 100644 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ b/drivers/staging/lustre/lustre/include/obd_class.h @@ -1535,6 +1535,21 @@ static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata, return rc; } +static inline int md_read_page(struct obd_export *exp, + struct md_op_data *op_data, + struct md_callback *cb_op, + __u64 hash_offset, + struct page **ppage) +{ + int rc; + + EXP_CHECK_MD_OP(exp, read_page); + EXP_MD_COUNTER_INCREMENT(exp, read_page); + rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset, + ppage); + return rc; +} + static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { |