From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22084 invoked by alias); 25 Jan 2012 08:48:47 -0000 Received: (qmail 22060 invoked by uid 9737); 25 Jan 2012 08:48:45 -0000 Date: Wed, 25 Jan 2012 08:48:00 -0000 Message-ID: <20120125084845.22058.qmail@sourceware.org> From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW lib/activate/activate.c lib/a ... Mailing-List: contact lvm2-cvs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: lvm2-cvs-owner@sourceware.org X-SW-Source: 2012-01/txt/msg00062.txt.bz2 CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2012-01-25 08:48:43 Modified files: . : WHATS_NEW lib/activate : activate.c activate.h dev_manager.c dev_manager.h Log message: Thin add lv_thin_pool_transaction_id Easy function to get transaction_id status value. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.2236&r2=1.2237 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/activate/activate.c.diff?cvsroot=lvm2&r1=1.233&r2=1.234 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/activate/activate.h.diff?cvsroot=lvm2&r1=1.94&r2=1.95 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/activate/dev_manager.c.diff?cvsroot=lvm2&r1=1.264&r2=1.265 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/activate/dev_manager.h.diff?cvsroot=lvm2&r1=1.44&r2=1.45 --- LVM2/WHATS_NEW 2012/01/24 14:33:38 1.2236 +++ LVM2/WHATS_NEW 2012/01/25 08:48:42 1.2237 @@ -1,5 +1,6 @@ Version 2.02.89 - ================================== + Add lv_thin_pool_transaction_id to read the transaction_id value. Use suspend|resume_origin_only when up-converting RAID, as mirrors do. Fix the way RAID meta LVs are added to the dependency tree. Change exclusive LV activation logic to try local node before remote nodes. --- LVM2/lib/activate/activate.c 2012/01/21 05:29:52 1.233 +++ LVM2/lib/activate/activate.c 2012/01/25 08:48:43 1.234 @@ -762,6 +762,35 @@ return r; } +/* + * Returns 1 if transaction_id set, else 0 on failure. + */ +int lv_thin_pool_transaction_id(const struct logical_volume *lv, + uint64_t *transaction_id) +{ + int r; + struct dev_manager *dm; + struct dm_status_thin_pool *status; + + if (!activation()) + return 0; + + log_debug("Checking thin percent for LV %s/%s", + lv->vg->name, lv->name); + + if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, 1))) + return_0; + + if (!(r = dev_manager_thin_pool_status(dm, lv, &status))) + stack; + else + *transaction_id = status->transaction_id; + + dev_manager_destroy(dm); + + return r; +} + static int _lv_active(struct cmd_context *cmd, struct logical_volume *lv) { struct lvinfo info; --- LVM2/lib/activate/activate.h 2012/01/20 00:27:19 1.94 +++ LVM2/lib/activate/activate.h 2012/01/25 08:48:43 1.95 @@ -105,6 +105,8 @@ percent_t *percent); int lv_thin_percent(const struct logical_volume *lv, int mapped, percent_t *percent); +int lv_thin_pool_transaction_id(const struct logical_volume *lv, + uint64_t *transaction_id); /* * Return number of LVs in the VG that are active. --- LVM2/lib/activate/dev_manager.c 2012/01/23 20:56:43 1.264 +++ LVM2/lib/activate/dev_manager.c 2012/01/25 08:48:43 1.265 @@ -882,6 +882,48 @@ #endif +int dev_manager_thin_pool_status(struct dev_manager *dm, + const struct logical_volume *lv, + struct dm_status_thin_pool **status) +{ + const char *dlid; + struct dm_task *dmt; + struct dm_info info; + uint64_t start, length; + char *type = NULL; + char *params = NULL; + int r = 0; + + /* Build dlid for the thin pool layer */ + if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, _thin_layer))) + return_0; + + log_debug("Getting thin pool device status for %s.", lv->name); + + if (!(dmt = _setup_task(NULL, dlid, 0, DM_DEVICE_STATUS, 0, 0))) + return_0; + + if (!dm_task_no_open_count(dmt)) + log_error("Failed to disable open_count."); + + if (!dm_task_run(dmt)) + goto_out; + + if (!dm_task_get_info(dmt, &info) || !info.exists) + goto_out; + + dm_get_next_target(dmt, NULL, &start, &length, &type, ¶ms); + + if (!dm_get_status_thin_pool(dm->mem, params, status)) + goto_out; + + r = 1; +out: + dm_task_destroy(dmt); + + return r; +} + int dev_manager_thin_pool_percent(struct dev_manager *dm, const struct logical_volume *lv, int metadata, percent_t *percent) --- LVM2/lib/activate/dev_manager.h 2012/01/19 15:27:54 1.44 +++ LVM2/lib/activate/dev_manager.h 2012/01/25 08:48:43 1.45 @@ -54,6 +54,9 @@ int dev_manager_mirror_percent(struct dev_manager *dm, const struct logical_volume *lv, int wait, percent_t *percent, uint32_t *event_nr); +int dev_manager_thin_pool_status(struct dev_manager *dm, + const struct logical_volume *lv, + struct dm_status_thin_pool **status); int dev_manager_thin_pool_percent(struct dev_manager *dm, const struct logical_volume *lv, int metadata, percent_t *percent);