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authorSteven Whitehouse <swhiteho@redhat.com>2009-01-12 10:43:39 +0000
committerSteven Whitehouse <steve@dolmen.chygwyn.com>2009-03-24 11:21:14 +0000
commitf057f6cdf64175db1151b1f5d110e29904f119a1 (patch)
tree582dbf358e351f64977620c29ebf772d693b1948 /fs/gfs2/recovery.c
parent22077f57dec8fcbeb1112b35313961c0902ff038 (diff)
downloadop-kernel-dev-f057f6cdf64175db1151b1f5d110e29904f119a1.zip
op-kernel-dev-f057f6cdf64175db1151b1f5d110e29904f119a1.tar.gz
GFS2: Merge lock_dlm module into GFS2
This is the big patch that I've been working on for some time now. There are many reasons for wanting to make this change such as: o Reducing overhead by eliminating duplicated fields between structures o Simplifcation of the code (reduces the code size by a fair bit) o The locking interface is now the DLM interface itself as proposed some time ago. o Fewer lookups of glocks when processing replies from the DLM o Fewer memory allocations/deallocations for each glock o Scope to do further optimisations in the future (but this patch is more than big enough for now!) Please note that (a) this patch relates to the lock_dlm module and not the DLM itself, that is still a separate module; and (b) that we retain the ability to build GFS2 as a standalone single node filesystem with out requiring the DLM. This patch needs a lot of testing, hence my keeping it I restarted my -git tree after the last merge window. That way, this has the maximum exposure before its merged. This is (modulo a few minor bug fixes) the same patch that I've been posting on and off the the last three months and its passed a number of different tests so far. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/recovery.c')
-rw-r--r--fs/gfs2/recovery.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index efd09c3..247e8f7 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -13,7 +13,6 @@
#include <linux/buffer_head.h>
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
-#include <linux/lm_interface.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
@@ -427,20 +426,23 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *hea
}
-static void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
- unsigned int message)
+static void gfs2_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
+ unsigned int message)
{
- if (!sdp->sd_lockstruct.ls_ops->lm_recovery_done)
- return;
-
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- sdp->sd_lockstruct.ls_ops->lm_recovery_done(
- sdp->sd_lockstruct.ls_lockspace, jid, message);
+ char env_jid[20];
+ char env_status[20];
+ char *envp[] = { env_jid, env_status, NULL };
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ ls->ls_recover_jid_done = jid;
+ ls->ls_recover_jid_status = message;
+ sprintf(env_jid, "JID=%d", jid);
+ sprintf(env_status, "RECOVERY=%s",
+ message == LM_RD_SUCCESS ? "Done" : "Failed");
+ kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
}
-
/**
- * gfs2_recover_journal - recovery a given journal
+ * gfs2_recover_journal - recover a given journal
* @jd: the struct gfs2_jdesc describing the journal
*
* Acquire the journal's lock, check to see if the journal is clean, and
@@ -561,7 +563,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
gfs2_glock_dq_uninit(&ji_gh);
- gfs2_lm_recovery_done(sdp, jd->jd_jid, LM_RD_SUCCESS);
+ gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_SUCCESS);
if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
gfs2_glock_dq_uninit(&j_gh);
@@ -581,7 +583,7 @@ fail_gunlock_j:
fs_info(sdp, "jid=%u: %s\n", jd->jd_jid, (error) ? "Failed" : "Done");
fail:
- gfs2_lm_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
+ gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
return error;
}
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