X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fdlm%2Futil.c;h=e36520af7cc0e75f8eab5ca649cf8b01a64ad674;hb=7f336bf1e59a0d49ffc178a5747ed7da25c6a6a3;hp=767197db994404749e6411eb2eebf1158ad44de6;hpb=4bf311ddfbffe12d41ad1a3c311ab727db6f72cb;p=linux-2.6-omap-h63xx.git diff --git a/fs/dlm/util.c b/fs/dlm/util.c index 767197db994..e36520af7cc 100644 --- a/fs/dlm/util.c +++ b/fs/dlm/util.c @@ -1,7 +1,7 @@ /****************************************************************************** ******************************************************************************* ** -** Copyright (C) 2005 Red Hat, Inc. All rights reserved. +** Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved. ** ** This copyrighted material is made available to anyone wishing to use, ** modify, copy, or redistribute it subject to the terms and conditions @@ -14,6 +14,14 @@ #include "rcom.h" #include "util.h" +#define DLM_ERRNO_EDEADLK 35 +#define DLM_ERRNO_EBADR 53 +#define DLM_ERRNO_EBADSLT 57 +#define DLM_ERRNO_EPROTO 71 +#define DLM_ERRNO_EOPNOTSUPP 95 +#define DLM_ERRNO_ETIMEDOUT 110 +#define DLM_ERRNO_EINPROGRESS 115 + static void header_out(struct dlm_header *hd) { hd->h_version = cpu_to_le32(hd->h_version); @@ -30,11 +38,54 @@ static void header_in(struct dlm_header *hd) hd->h_length = le16_to_cpu(hd->h_length); } -void dlm_message_out(struct dlm_message *ms) +/* higher errno values are inconsistent across architectures, so select + one set of values for on the wire */ + +static int to_dlm_errno(int err) { - struct dlm_header *hd = (struct dlm_header *) ms; + switch (err) { + case -EDEADLK: + return -DLM_ERRNO_EDEADLK; + case -EBADR: + return -DLM_ERRNO_EBADR; + case -EBADSLT: + return -DLM_ERRNO_EBADSLT; + case -EPROTO: + return -DLM_ERRNO_EPROTO; + case -EOPNOTSUPP: + return -DLM_ERRNO_EOPNOTSUPP; + case -ETIMEDOUT: + return -DLM_ERRNO_ETIMEDOUT; + case -EINPROGRESS: + return -DLM_ERRNO_EINPROGRESS; + } + return err; +} - header_out(hd); +static int from_dlm_errno(int err) +{ + switch (err) { + case -DLM_ERRNO_EDEADLK: + return -EDEADLK; + case -DLM_ERRNO_EBADR: + return -EBADR; + case -DLM_ERRNO_EBADSLT: + return -EBADSLT; + case -DLM_ERRNO_EPROTO: + return -EPROTO; + case -DLM_ERRNO_EOPNOTSUPP: + return -EOPNOTSUPP; + case -DLM_ERRNO_ETIMEDOUT: + return -ETIMEDOUT; + case -DLM_ERRNO_EINPROGRESS: + return -EINPROGRESS; + } + return err; +} + +void dlm_message_out(struct dlm_message *ms) +{ + header_out(&ms->m_header); ms->m_type = cpu_to_le32(ms->m_type); ms->m_nodeid = cpu_to_le32(ms->m_nodeid); @@ -53,14 +104,12 @@ void dlm_message_out(struct dlm_message *ms) ms->m_rqmode = cpu_to_le32(ms->m_rqmode); ms->m_bastmode = cpu_to_le32(ms->m_bastmode); ms->m_asts = cpu_to_le32(ms->m_asts); - ms->m_result = cpu_to_le32(ms->m_result); + ms->m_result = cpu_to_le32(to_dlm_errno(ms->m_result)); } void dlm_message_in(struct dlm_message *ms) { - struct dlm_header *hd = (struct dlm_header *) ms; - - header_in(hd); + header_in(&ms->m_header); ms->m_type = le32_to_cpu(ms->m_type); ms->m_nodeid = le32_to_cpu(ms->m_nodeid); @@ -79,83 +128,27 @@ void dlm_message_in(struct dlm_message *ms) ms->m_rqmode = le32_to_cpu(ms->m_rqmode); ms->m_bastmode = le32_to_cpu(ms->m_bastmode); ms->m_asts = le32_to_cpu(ms->m_asts); - ms->m_result = le32_to_cpu(ms->m_result); -} - -static void rcom_lock_out(struct rcom_lock *rl) -{ - rl->rl_ownpid = cpu_to_le32(rl->rl_ownpid); - rl->rl_lkid = cpu_to_le32(rl->rl_lkid); - rl->rl_remid = cpu_to_le32(rl->rl_remid); - rl->rl_parent_lkid = cpu_to_le32(rl->rl_parent_lkid); - rl->rl_parent_remid = cpu_to_le32(rl->rl_parent_remid); - rl->rl_exflags = cpu_to_le32(rl->rl_exflags); - rl->rl_flags = cpu_to_le32(rl->rl_flags); - rl->rl_lvbseq = cpu_to_le32(rl->rl_lvbseq); - rl->rl_result = cpu_to_le32(rl->rl_result); - rl->rl_wait_type = cpu_to_le16(rl->rl_wait_type); - rl->rl_namelen = cpu_to_le16(rl->rl_namelen); -} - -static void rcom_lock_in(struct rcom_lock *rl) -{ - rl->rl_ownpid = le32_to_cpu(rl->rl_ownpid); - rl->rl_lkid = le32_to_cpu(rl->rl_lkid); - rl->rl_remid = le32_to_cpu(rl->rl_remid); - rl->rl_parent_lkid = le32_to_cpu(rl->rl_parent_lkid); - rl->rl_parent_remid = le32_to_cpu(rl->rl_parent_remid); - rl->rl_exflags = le32_to_cpu(rl->rl_exflags); - rl->rl_flags = le32_to_cpu(rl->rl_flags); - rl->rl_lvbseq = le32_to_cpu(rl->rl_lvbseq); - rl->rl_result = le32_to_cpu(rl->rl_result); - rl->rl_wait_type = le16_to_cpu(rl->rl_wait_type); - rl->rl_namelen = le16_to_cpu(rl->rl_namelen); -} - -static void rcom_config_out(struct rcom_config *rf) -{ - rf->rf_lvblen = cpu_to_le32(rf->rf_lvblen); - rf->rf_lsflags = cpu_to_le32(rf->rf_lsflags); -} - -static void rcom_config_in(struct rcom_config *rf) -{ - rf->rf_lvblen = le32_to_cpu(rf->rf_lvblen); - rf->rf_lsflags = le32_to_cpu(rf->rf_lsflags); + ms->m_result = from_dlm_errno(le32_to_cpu(ms->m_result)); } void dlm_rcom_out(struct dlm_rcom *rc) { - struct dlm_header *hd = (struct dlm_header *) rc; - int type = rc->rc_type; - - header_out(hd); + header_out(&rc->rc_header); rc->rc_type = cpu_to_le32(rc->rc_type); rc->rc_result = cpu_to_le32(rc->rc_result); rc->rc_id = cpu_to_le64(rc->rc_id); - - if (type == DLM_RCOM_LOCK) - rcom_lock_out((struct rcom_lock *) rc->rc_buf); - - else if (type == DLM_RCOM_STATUS_REPLY) - rcom_config_out((struct rcom_config *) rc->rc_buf); + rc->rc_seq = cpu_to_le64(rc->rc_seq); + rc->rc_seq_reply = cpu_to_le64(rc->rc_seq_reply); } void dlm_rcom_in(struct dlm_rcom *rc) { - struct dlm_header *hd = (struct dlm_header *) rc; - - header_in(hd); + header_in(&rc->rc_header); rc->rc_type = le32_to_cpu(rc->rc_type); rc->rc_result = le32_to_cpu(rc->rc_result); rc->rc_id = le64_to_cpu(rc->rc_id); - - if (rc->rc_type == DLM_RCOM_LOCK) - rcom_lock_in((struct rcom_lock *) rc->rc_buf); - - else if (rc->rc_type == DLM_RCOM_STATUS_REPLY) - rcom_config_in((struct rcom_config *) rc->rc_buf); + rc->rc_seq = le64_to_cpu(rc->rc_seq); + rc->rc_seq_reply = le64_to_cpu(rc->rc_seq_reply); } -