June 2014 - lvm2-commits - Fedora Mailing-Lists

master - man: More /dev/vg and /dev/mapper documentation.

by Alasdair Kergon

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=867b92b031b491... Commit: 867b92b031b4913213c335bd0bf7363e934f379d Parent: 9c3c35787423b3b3d29fdb6a86cf796a1847cce4 Author: Alasdair G Kergon <agk(a)redhat.com> AuthorDate: Mon Jun 23 14:01:31 2014 +0100 Committer: Alasdair G Kergon <agk(a)redhat.com> CommitterDate: Mon Jun 23 14:01:31 2014 +0100 man: More /dev/vg and /dev/mapper documentation. --- man/dmsetup.8.in | 8 +++++++- man/lvchange.8.in | 13 ++++++++++++- man/lvm.8.in | 9 +++++++++ man/vgchange.8.in | 9 +++++++++ 4 files changed, 37 insertions(+), 2 deletions(-) diff --git a/man/dmsetup.8.in b/man/dmsetup.8.in index b545dcf..b18b0b0 100644 --- a/man/dmsetup.8.in +++ b/man/dmsetup.8.in @@ -502,7 +502,13 @@ Sets the device geometry to C/H/S. .RI [ subsystem ] .br Splits given device name into subsystem constituents. -Default subsystem is LVM. +The default subsystem is LVM. +LVM currently generates device names by concatenating the names of the Volume +Group, Logical Volume and any internal Layer with a hyphen as separator. +Any hyphens within the names are doubled to escape them. +The precise encoding might change without notice in any future +release, so we recommend you always decode using the current version of +this command. .br .TP .B status diff --git a/man/lvchange.8.in b/man/lvchange.8.in index 5c896e0..f7aee8f 100644 --- a/man/lvchange.8.in +++ b/man/lvchange.8.in @@ -72,7 +72,18 @@ See \fBlvm\fP(8) for common options. Controls the availability of the logical volumes for use. Communicates with the kernel device-mapper driver via libdevmapper to activate (\-ay) or deactivate (\-an) the -logical volumes. If autoactivation option is used (\-aay), +logical volumes. +.IP +Activation of a logical volume creates a symbolic link +/dev/VolumeGroupName/LogicalVolumeName pointing to the device node. +This link is removed on deactivation. +All software and scripts should access the device through +this symbolic link and present this as the name of the device. +The location and name of the underlying device node may depend on +the distribution and configuration (e.g. udev) and might change +from release to release. +.IP +If autoactivation option is used (\-aay), the logical volume is activated only if it matches an item in the activation/auto_activation_volume_list set in lvm.conf. If this list is not set, then all volumes are considered for diff --git a/man/lvm.8.in b/man/lvm.8.in index 0a5c69c..76d1237 100644 --- a/man/lvm.8.in +++ b/man/lvm.8.in @@ -347,6 +347,14 @@ There are also various reserved names that are used internally by lvm that can n A VG cannot be called anything that exists in /dev/ at the time of creation, nor can it be called '.' or '..'. A LV cannot be called '.' '..' 'snapshot' or 'pvmove'. The LV name may also not contain the strings '_mlog', '_mimage', '_rimage', '_tdata', '_tmeta'. +A directory bearing the name of each Volume Group is created under /dev when any of its Logical Volumes are activated. +Each active Logical Volume is accessible from this directory as a symbolic link leading to a device node. +Links or nodes in /dev/mapper are intended only for internal use and the precise format and escaping might change between releases and distributions. +Other software and scripts should use the +/dev/VolumeGroupName/LogicalVolumeName format to reduce the chance of needing +amendment when the software is updated. Should you need to process the node +names in /dev/mapper, you may use \fBdmsetup splitname\fP to separate out the +original VG, LV and internal layer names. .SH ALLOCATION When an operation needs to allocate Physical Extents for one or more Logical Volumes, the tools proceed as follows: @@ -500,6 +508,7 @@ All tools return a status code of zero on success or non-zero on failure. .BR lvmthin (7), .BR lvm\ dumpconfig (8), .BR clvmd (8), +.BR dmsetup (8), .BR lvchange (8), .BR lvcreate (8), .BR lvdisplay (8), diff --git a/man/vgchange.8.in b/man/vgchange.8.in index 284a655..9ea2f65 100644 --- a/man/vgchange.8.in +++ b/man/vgchange.8.in @@ -83,6 +83,15 @@ The \-aay option should be also used during system boot so it's possible to select which volumes to activate using the activation/auto_activation_volume_list settting. .IP +Activation of a logical volume creates a symbolic link +/dev/VolumeGroupName/LogicalVolumeName pointing to the device node. +This link is removed on deactivation. +All software and scripts should access the device through +this symbolic link and present this as the name of the device. +The location and name of the underlying device node may depend on +the distribution and configuration (e.g. udev) and might change +from release to release. +.IP If clustered locking is enabled, add 'e' to activate/deactivate exclusively on one node or 'l' to activate/deactivate only on the local node.

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master - select: add message about 'help' field to get more help on each error hit during selection parsing

by Peter Rajnoha

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=9c3c35787423b3... Commit: 9c3c35787423b3b3d29fdb6a86cf796a1847cce4 Parent: 69075d0b4386f0bd112efc237c86c340872b022f Author: Peter Rajnoha <prajnoha(a)redhat.com> AuthorDate: Mon Jun 23 12:12:01 2014 +0200 Committer: Peter Rajnoha <prajnoha(a)redhat.com> CommitterDate: Mon Jun 23 12:21:17 2014 +0200 select: add message about 'help' field to get more help on each error hit during selection parsing Inform about 'help' to get more help about selection fields and operators after each syntax error hit: "Use 'help' for selection to get more help." --- libdm/libdm-report.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/libdm/libdm-report.c b/libdm/libdm-report.c index 67f63d5..957a4c9 100644 --- a/libdm/libdm-report.c +++ b/libdm/libdm-report.c @@ -2396,7 +2396,8 @@ out_reserved_values: log_warn(" "); } -static char _sel_syntax_error_at_msg[] = "Selection syntax error at '%s'."; +static const char _sel_syntax_error_at_msg[] = "Selection syntax error at '%s'."; +static const char _sel_help_ref_msg[] = "Use \'help\' for selection to get more help."; /* * Selection parser @@ -2460,6 +2461,8 @@ static struct selection_node *_parse_selection(struct dm_report *rh, c = we[0]; tmp = (char *) we; tmp[0] = '\0'; + _display_fields(rh, 0, 1); + log_warn(" "); log_error("Selection field is uncomparable: %s.", ws); tmp[0] = c; goto bad; @@ -2522,6 +2525,7 @@ static struct selection_node *_parse_selection(struct dm_report *rh, return sn; bad: log_error(_sel_syntax_error_at_msg, s); + log_error(_sel_help_ref_msg); *next = s; return NULL; } @@ -2695,6 +2699,7 @@ struct dm_report *dm_report_init_with_selection(uint32_t *report_types, if (*next) { log_error("Expecting logical operator"); log_error(_sel_syntax_error_at_msg, next); + log_error(_sel_help_ref_msg); goto error; }

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master - select: also mark uncomparable/unselectable fields in field/selection help

by Peter Rajnoha

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=69075d0b4386f0... Commit: 69075d0b4386f0bd112efc237c86c340872b022f Parent: 2d48ef7f04e0b3b14d7a9bf622979e42141f34f2 Author: Peter Rajnoha <prajnoha(a)redhat.com> AuthorDate: Mon Jun 23 10:46:45 2014 +0200 Committer: Peter Rajnoha <prajnoha(a)redhat.com> CommitterDate: Mon Jun 23 12:20:49 2014 +0200 select: also mark uncomparable/unselectable fields in field/selection help --- libdm/libdm-report.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/libdm/libdm-report.c b/libdm/libdm-report.c index 3d16e5a..67f63d5 100644 --- a/libdm/libdm-report.c +++ b/libdm/libdm-report.c @@ -633,8 +633,9 @@ static void _display_fields_more(struct dm_report *rh, } } /* FIXME Add line-wrapping at terminal width (or 80 cols) */ - log_warn(" %-*s - %s%s%s%s", (int) id_len, fields[f].id, fields[f].desc, + log_warn(" %-*s - %s%s%s%s%s", (int) id_len, fields[f].id, fields[f].desc, display_field_types ? " [" : "", + display_field_types ? fields[f].flags & FLD_CMP_UNCOMPARABLE ? "unselectable " : "" : "", display_field_types ? _get_field_type_name(fields[f].flags & DM_REPORT_FIELD_TYPE_MASK) : "", display_field_types ? "]" : ""); last_desc = desc;

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master - select: add FLD_UNCOMPARABLE flag for fields which can't be compared

by Peter Rajnoha

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=2d48ef7f04e0b3... Commit: 2d48ef7f04e0b3b14d7a9bf622979e42141f34f2 Parent: c1c2e838e88c56ef38d590007ca3b588ca06f1fd Author: Peter Rajnoha <prajnoha(a)redhat.com> AuthorDate: Mon Jun 23 09:57:46 2014 +0200 Committer: Peter Rajnoha <prajnoha(a)redhat.com> CommitterDate: Mon Jun 23 10:09:58 2014 +0200 select: add FLD_UNCOMPARABLE flag for fields which can't be compared A field where it has no meaning to do any type of comparison is the implicit "help" or "?" field. The error given was a bit cryptic before this patch, the FLD_UNCOMPARABLE flag makes it easier to identify this situation anywhere in the code and provide much better error message. This flag can be applied to other fields that may appear in the future - mostly usable for implicit fields as they always have special purpose (so we're not exporting it in libdevmapper for now - usual reporting fields don't need this). Before this patch: $ vgs -S help=1 dm_report_object: no data assigned to field help dm_report_object: no data assigned to field help (...which is true actually, but let's provide something better...) With this patch applied: $vgs -S help=1 Selection field is uncomparable: help. Selection syntax error at 'help=1'. $vgs -S '(name=vg && help=1) || vg_size > 1g' Selection field is uncomparable: help. Selection syntax error at 'help=1) || vg_size > 1g'. --- libdm/libdm-report.c | 37 ++++++++++++++++++++++++------------- 1 files changed, 24 insertions(+), 13 deletions(-) diff --git a/libdm/libdm-report.c b/libdm/libdm-report.c index fd03052..3d16e5a 100644 --- a/libdm/libdm-report.c +++ b/libdm/libdm-report.c @@ -84,13 +84,14 @@ struct op_def { const char *desc; }; -#define FLD_CMP_MASK 0x00FF0000 -#define FLD_CMP_EQUAL 0x00010000 -#define FLD_CMP_NOT 0x00020000 -#define FLD_CMP_GT 0x00040000 -#define FLD_CMP_LT 0x00080000 -#define FLD_CMP_REGEX 0x00100000 -#define FLD_CMP_NUMBER 0x00200000 +#define FLD_CMP_MASK 0x00FF0000 +#define FLD_CMP_UNCOMPARABLE 0x00010000 +#define FLD_CMP_EQUAL 0x00020000 +#define FLD_CMP_NOT 0x00040000 +#define FLD_CMP_GT 0x00080000 +#define FLD_CMP_LT 0x00100000 +#define FLD_CMP_REGEX 0x00200000 +#define FLD_CMP_NUMBER 0x00400000 /* * #define FLD_CMP_STRING 0x00400000 * We could defined FLD_CMP_STRING here for completeness here, @@ -227,15 +228,15 @@ static const struct dm_report_object_type _implicit_common_report_types[] = { }; static const struct dm_report_field_type _implicit_common_report_fields[] = { - { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER, 0, 8, COMMON_FIELD_HELP_ID, "Help", _no_report_fn, "Show help." }, - { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER, 0, 8, COMMON_FIELD_HELP_ALT_ID, "Help", _no_report_fn, "Show help." }, + { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER | FLD_CMP_UNCOMPARABLE, 0, 8, COMMON_FIELD_HELP_ID, "Help", _no_report_fn, "Show help." }, + { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER | FLD_CMP_UNCOMPARABLE, 0, 8, COMMON_FIELD_HELP_ALT_ID, "Help", _no_report_fn, "Show help." }, { 0, 0, 0, 0, "", "", 0, 0} }; static const struct dm_report_field_type _implicit_common_report_fields_with_selection[] = { { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER, 0, 8, COMMON_FIELD_SELECTED_ID, "Selected", _selected_disp, "Item passes selection criteria." }, - { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER, 0, 8, COMMON_FIELD_HELP_ID, "Help", _no_report_fn, "Show help." }, - { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER, 0, 8, COMMON_FIELD_HELP_ALT_ID, "Help", _no_report_fn, "Show help." }, + { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER | FLD_CMP_UNCOMPARABLE, 0, 8, COMMON_FIELD_HELP_ID, "Help", _no_report_fn, "Show help." }, + { COMMON_REPORT_TYPE, DM_REPORT_FIELD_TYPE_NUMBER | FLD_CMP_UNCOMPARABLE, 0, 8, COMMON_FIELD_HELP_ALT_ID, "Help", _no_report_fn, "Show help." }, { 0, 0, 0, 0, "", "", 0, 0} }; @@ -2452,8 +2453,18 @@ static struct selection_node *_parse_selection(struct dm_report *rh, goto bad; } - ft = implicit ? &_implicit_report_fields[field_num] - : &rh->fields[field_num]; + if (implicit) { + ft = &_implicit_report_fields[field_num]; + if (ft->flags & FLD_CMP_UNCOMPARABLE) { + c = we[0]; + tmp = (char *) we; + tmp[0] = '\0'; + log_error("Selection field is uncomparable: %s.", ws); + tmp[0] = c; + goto bad; + } + } else + ft = &rh->fields[field_num]; /* comparison operator */ if (!(flags = _tok_op_cmp(we, &last))) {

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master - locking: fix cluster locking

by Alasdair Kergon

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=c1c2e838e88c56... Commit: c1c2e838e88c56ef38d590007ca3b588ca06f1fd Parent: 78533f72d30f6e840f66e0aae89126ef139c1f2c Author: Alasdair G Kergon <agk(a)redhat.com> AuthorDate: Fri Jun 20 16:38:48 2014 +0100 Committer: Alasdair G Kergon <agk(a)redhat.com> CommitterDate: Fri Jun 20 16:38:48 2014 +0100 locking: fix cluster locking Hunk missed from last commit 78533f72d30f6e840f66e0aae89126ef139c1f2c. --- lib/locking/cluster_locking.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/lib/locking/cluster_locking.c b/lib/locking/cluster_locking.c index 86e6c77..8070014 100644 --- a/lib/locking/cluster_locking.c +++ b/lib/locking/cluster_locking.c @@ -425,6 +425,8 @@ static int _lock_resource(struct cmd_context *cmd, const char *resource, assert(resource); switch (flags & LCK_SCOPE_MASK) { + case LCK_ACTIVATION: + return 1; case LCK_VG: if (!strcmp(resource, VG_SYNC_NAMES)) { log_very_verbose("Requesting sync names.");

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master - locking: Introduce LCK_ACTIVATION.

by Alasdair Kergon

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=78533f72d30f6e... Commit: 78533f72d30f6e840f66e0aae89126ef139c1f2c Parent: f29ae59a4d88ff0f76cfd84a6061222ae178438b Author: Alasdair G Kergon <agk(a)redhat.com> AuthorDate: Fri Jun 20 13:24:02 2014 +0100 Committer: Alasdair G Kergon <agk(a)redhat.com> CommitterDate: Fri Jun 20 13:24:02 2014 +0100 locking: Introduce LCK_ACTIVATION. Take a local file lock to prevent concurrent activation/deactivation of LVs. Thin/cache types and an extension for cluster support are excluded for now. 'lvchange -ay $lv' and 'lvchange -an $lv' should no longer cause trouble if issued concurrently: the new lock should make sure they activate/deactivate $lv one-after-the-other, instead of overlapping. (If anyone wants to experiment with the cluster patch, please get in touch.) --- WHATS_NEW | 1 + lib/locking/file_locking.c | 10 +++++++ lib/locking/locking.c | 2 + lib/locking/locking.h | 65 ++++++++++++++++++++++++++++++++++++------- lib/locking/no_locking.c | 2 + 5 files changed, 69 insertions(+), 11 deletions(-) diff --git a/WHATS_NEW b/WHATS_NEW index 44cef74..c2b443c 100644 --- a/WHATS_NEW +++ b/WHATS_NEW @@ -1,5 +1,6 @@ Version 2.02.107 - ================================== + Introduce LCK_ACTIVATION to avoid concurrent activation of basic LV types. Fix open_count test for lvchange --refresh or mirrors and raids. Update pvs,vgs,lvs and lvm man page for selection support. Add -S/--select to lvm devtypes for report selection. diff --git a/lib/locking/file_locking.c b/lib/locking/file_locking.c index d332101..e6def3f 100644 --- a/lib/locking/file_locking.c +++ b/lib/locking/file_locking.c @@ -49,6 +49,16 @@ static int _file_lock_resource(struct cmd_context *cmd, const char *resource, unsigned revert = (flags & LCK_REVERT) ? 1 : 0; switch (flags & LCK_SCOPE_MASK) { + case LCK_ACTIVATION: + if (dm_snprintf(lockfile, sizeof(lockfile), + "%s/A_%s", _lock_dir, resource + 1) < 0) { + log_error("Too long locking filename %s/A_%s.", _lock_dir, resource + 1); + return 0; + } + + if (!lock_file(lockfile, flags)) + return_0; + break; case LCK_VG: /* Skip cache refresh for VG_GLOBAL - the caller handles it */ if (strcmp(resource, VG_GLOBAL)) diff --git a/lib/locking/locking.c b/lib/locking/locking.c index 673713a..9432f84 100644 --- a/lib/locking/locking.c +++ b/lib/locking/locking.c @@ -318,6 +318,8 @@ int lock_vol(struct cmd_context *cmd, const char *vol, uint32_t flags, struct lo } switch (flags & LCK_SCOPE_MASK) { + case LCK_ACTIVATION: + break; case LCK_VG: if (!_blocking_supported) flags |= LCK_NONBLOCK; diff --git a/lib/locking/locking.h b/lib/locking/locking.h index 0945aa0..284ce7a 100644 --- a/lib/locking/locking.h +++ b/lib/locking/locking.h @@ -86,9 +86,10 @@ int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname); /* * Lock scope */ -#define LCK_SCOPE_MASK 0x00000008U -#define LCK_VG 0x00000000U -#define LCK_LV 0x00000008U +#define LCK_SCOPE_MASK 0x00001008U +#define LCK_VG 0x00000000U /* Volume Group */ +#define LCK_LV 0x00000008U /* Logical Volume */ +#define LCK_ACTIVATION 0x00001000U /* Activation */ /* * Lock bits. @@ -131,6 +132,9 @@ int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname); */ #define LCK_NONE (LCK_VG | LCK_NULL) +#define LCK_ACTIVATE_LOCK (LCK_ACTIVATION | LCK_WRITE | LCK_HOLD) +#define LCK_ACTIVATE_UNLOCK (LCK_ACTIVATION | LCK_UNLOCK) + #define LCK_VG_READ (LCK_VG | LCK_READ | LCK_HOLD) #define LCK_VG_WRITE (LCK_VG | LCK_WRITE | LCK_HOLD) #define LCK_VG_UNLOCK (LCK_VG | LCK_UNLOCK) @@ -161,6 +165,33 @@ int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname); lock_vol(cmd, (lv)->lvid.s, flags | LCK_LV_CLUSTERED(lv), lv) : \ 0) +/* + * Activation locks are wrapped around activation commands that have to + * be processed atomically one-at-a-time. + * If a VG WRITE lock is held, an activation lock is redundant. + * + * FIXME Test and support this for thin and cache types. + * FIXME Add cluster support. + */ +#define lv_supports_activation_locking(lv) (!vg_is_clustered((lv)->vg) && !lv_is_thin_type(lv) && !lv_is_cache_type(lv)) +#define lock_activation(cmd, lv) (vg_write_lock_held() && lv_supports_activation_locking(lv) ? 1 : lock_vol(cmd, (lv)->lvid.s, LCK_ACTIVATE_LOCK, lv)) +#define unlock_activation(cmd, lv) (vg_write_lock_held() && lv_supports_activation_locking(lv) ? 1 : lock_vol(cmd, (lv)->lvid.s, LCK_ACTIVATE_UNLOCK, lv)) + +/* + * Place temporary exclusive 'activation' lock around an LV locking operation + * to serialise it. + */ +#define lock_lv_vol_serially(cmd, lv, flags) \ +({ \ + int rr = 0; \ +\ + if (lock_activation((cmd), (lv))) { \ + rr = lock_lv_vol((cmd), (lv), (flags)); \ + unlock_activation((cmd), (lv)); \ + } \ + rr; \ +}) + #define unlock_vg(cmd, vol) \ do { \ if (is_real_vg(vol)) \ @@ -173,16 +204,28 @@ int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname); release_vg(vg); \ } while (0) -#define resume_lv(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_RESUME) +#define resume_lv(cmd, lv) \ +({ \ + int rr = lock_lv_vol((cmd), (lv), LCK_LV_RESUME); \ + unlock_activation((cmd), (lv)); \ + rr; \ +}) #define resume_lv_origin(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_RESUME | LCK_ORIGIN_ONLY) -#define revert_lv(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_RESUME | LCK_REVERT) -#define suspend_lv(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_SUSPEND | LCK_HOLD) +#define revert_lv(cmd, lv) \ +({ \ + int rr = lock_lv_vol((cmd), (lv), LCK_LV_RESUME | LCK_REVERT); \ +\ + unlock_activation((cmd), (lv)); \ + rr; \ +}) +#define suspend_lv(cmd, lv) \ + (lock_activation((cmd), (lv)) ? lock_lv_vol((cmd), (lv), LCK_LV_SUSPEND | LCK_HOLD) : 0) #define suspend_lv_origin(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_SUSPEND | LCK_HOLD | LCK_ORIGIN_ONLY) -#define deactivate_lv(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_DEACTIVATE) +#define deactivate_lv(cmd, lv) lock_lv_vol_serially(cmd, lv, LCK_LV_DEACTIVATE) -#define activate_lv(cmd, lv) lock_lv_vol(cmd, lv, LCK_LV_ACTIVATE | LCK_HOLD) +#define activate_lv(cmd, lv) lock_lv_vol_serially(cmd, lv, LCK_LV_ACTIVATE | LCK_HOLD) #define activate_lv_excl_local(cmd, lv) \ - lock_lv_vol(cmd, lv, LCK_LV_EXCLUSIVE | LCK_HOLD | LCK_LOCAL) + lock_lv_vol_serially(cmd, lv, LCK_LV_EXCLUSIVE | LCK_HOLD | LCK_LOCAL) #define activate_lv_excl_remote(cmd, lv) \ lock_lv_vol(cmd, lv, LCK_LV_EXCLUSIVE | LCK_HOLD | LCK_REMOTE) @@ -190,9 +233,9 @@ struct logical_volume; int activate_lv_excl(struct cmd_context *cmd, struct logical_volume *lv); #define activate_lv_local(cmd, lv) \ - lock_lv_vol(cmd, lv, LCK_LV_ACTIVATE | LCK_HOLD | LCK_LOCAL) + lock_lv_vol_serially(cmd, lv, LCK_LV_ACTIVATE | LCK_HOLD | LCK_LOCAL) #define deactivate_lv_local(cmd, lv) \ - lock_lv_vol(cmd, lv, LCK_LV_DEACTIVATE | LCK_LOCAL) + lock_lv_vol_serially(cmd, lv, LCK_LV_DEACTIVATE | LCK_LOCAL) #define drop_cached_metadata(vg) \ lock_vol((vg)->cmd, (vg)->name, LCK_VG_DROP_CACHE, NULL) #define remote_commit_cached_metadata(vg) \ diff --git a/lib/locking/no_locking.c b/lib/locking/no_locking.c index f7718be..ab95933 100644 --- a/lib/locking/no_locking.c +++ b/lib/locking/no_locking.c @@ -37,6 +37,8 @@ static int _no_lock_resource(struct cmd_context *cmd, const char *resource, uint32_t flags, struct logical_volume *lv) { switch (flags & LCK_SCOPE_MASK) { + case LCK_ACTIVATION: + break; case LCK_VG: if (!strcmp(resource, VG_SYNC_NAMES)) fs_unlock();

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master - pvvmove: add a few comments

by Alasdair Kergon

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=f29ae59a4d88ff... Commit: f29ae59a4d88ff0f76cfd84a6061222ae178438b Parent: f96a499c8d4ad784ccd7a15061e71b16342de104 Author: Alasdair G Kergon <agk(a)redhat.com> AuthorDate: Fri Jun 20 11:41:20 2014 +0100 Committer: Alasdair G Kergon <agk(a)redhat.com> CommitterDate: Fri Jun 20 11:41:20 2014 +0100 pvvmove: add a few comments --- lib/metadata/lv_manip.c | 8 +++++--- lib/metadata/merge.c | 5 +++++ 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c index 44f94f4..069e5a6 100644 --- a/lib/metadata/lv_manip.c +++ b/lib/metadata/lv_manip.c @@ -2737,8 +2737,9 @@ int lv_add_segmented_mirror_image(struct alloc_handle *ah, } /* - * Perform any necessary segment splitting before creating - * the mirror layer. + * If the allocator provided two or more PV allocations for any + * single segment of the original LV, that LV segment must be + * split up to match. */ dm_list_iterate_items(aa, &ah->alloced_areas[0]) { if (!(seg = find_seg_by_le(lv, current_le))) { @@ -2757,6 +2758,7 @@ int lv_add_segmented_mirror_image(struct alloc_handle *ah, } current_le += seg->area_len; } + current_le = le; if (!insert_layer_for_lv(lv->vg->cmd, lv, PVMOVE, "_mimage_0")) { @@ -5222,7 +5224,7 @@ int remove_layers_for_segments(struct cmd_context *cmd, layer_lv->name, lseg->le); return 0; } - if (((lseg->status & status_mask) != status_mask)) { + if ((lseg->status & status_mask) != status_mask) { log_error("Layer status does not match: " "%s:%" PRIu32 " status: 0x%" PRIx64 "/0x%" PRIx64, layer_lv->name, lseg->le, diff --git a/lib/metadata/merge.c b/lib/metadata/merge.c index 142d4d8..5aa7d00 100644 --- a/lib/metadata/merge.c +++ b/lib/metadata/merge.c @@ -40,6 +40,11 @@ int lv_merge_segments(struct logical_volume *lv) struct dm_list *segh, *t; struct lv_segment *seg, *current, *prev = NULL; + /* + * Don't interfere with pvmoves as they rely upon two LVs + * having a matching segment structure. + */ + if (lv->status & LOCKED || lv->status & PVMOVE) return 1;

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master - lv: fix lv_is_raid

by Zdenek Kabelac

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=f96a499c8d4ad7... Commit: f96a499c8d4ad784ccd7a15061e71b16342de104 Parent: 93597bcbdc791daf7308c839f245f6951900d7a7 Author: Zdenek Kabelac <zkabelac(a)redhat.com> AuthorDate: Fri Jun 20 11:37:45 2014 +0200 Committer: Zdenek Kabelac <zkabelac(a)redhat.com> CommitterDate: Fri Jun 20 11:37:45 2014 +0200 lv: fix lv_is_raid --- lib/metadata/lv.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/metadata/lv.c b/lib/metadata/lv.c index 6cbab19..f1d93a9 100644 --- a/lib/metadata/lv.c +++ b/lib/metadata/lv.c @@ -777,7 +777,7 @@ char *lv_host_dup(struct dm_pool *mem, const struct logical_volume *lv) static int _lv_is_exclusive(struct logical_volume *lv) { /* Some devices require exlusiveness */ - return lv_is_is_raid(lv) || + return lv_is_raid(lv) || lv_is_origin(lv) || lv_is_thin_type(lv) || lv_is_cache_type(lv);

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master - tests: add udev sync point

by Zdenek Kabelac

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=93597bcbdc791d... Commit: 93597bcbdc791daf7308c839f245f6951900d7a7 Parent: 548269a1ddeb8fa2cfc6a9fd95c5fb2c398914a7 Author: Zdenek Kabelac <zkabelac(a)redhat.com> AuthorDate: Fri Jun 20 11:11:39 2014 +0200 Committer: Zdenek Kabelac <zkabelac(a)redhat.com> CommitterDate: Fri Jun 20 11:14:29 2014 +0200 tests: add udev sync point Missed synchronization with udev may lead to error on vgcreate, if previous vgremove was not handled fast enough by udev. --- test/shell/snapshot-usage.sh | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/test/shell/snapshot-usage.sh b/test/shell/snapshot-usage.sh index c0a14c6..dcf2886 100644 --- a/test/shell/snapshot-usage.sh +++ b/test/shell/snapshot-usage.sh @@ -213,6 +213,12 @@ vgremove -ff $vg1 # Can't test >= 16T devices on 32bit test "$TSIZE" = 15P || exit 0 +# synchronize with udev activity +# FIXME - otherwise sequence of vgremove followed by vgcreate may fail... +# as there could be still remaing links in /dev +# Unusure if 'vgcreate' should do this type of detection in udev mode. +aux udev_wait + # Check usability with largest extent size pvcreate "$DM_DEV_DIR/$vg/$lv" vgcreate -s 4G $vg1 "$DM_DEV_DIR/$vg/$lv"

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master - cleanup: use simplier test

by Zdenek Kabelac

Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=548269a1ddeb8f... Commit: 548269a1ddeb8fa2cfc6a9fd95c5fb2c398914a7 Parent: 32ad8ab5a4a6cd00f15beb947568a7a5b702f545 Author: Zdenek Kabelac <zkabelac(a)redhat.com> AuthorDate: Thu Jun 19 21:08:05 2014 +0200 Committer: Zdenek Kabelac <zkabelac(a)redhat.com> CommitterDate: Fri Jun 20 11:14:11 2014 +0200 cleanup: use simplier test Just like all other tests - use direct LV function test --- lib/metadata/lv.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/metadata/lv.c b/lib/metadata/lv.c index a1211a8..6cbab19 100644 --- a/lib/metadata/lv.c +++ b/lib/metadata/lv.c @@ -776,8 +776,8 @@ char *lv_host_dup(struct dm_pool *mem, const struct logical_volume *lv) static int _lv_is_exclusive(struct logical_volume *lv) { - /* Some devices require exlusivness */ - return seg_is_raid(first_seg(lv)) || + /* Some devices require exlusiveness */ + return lv_is_is_raid(lv) || lv_is_origin(lv) || lv_is_thin_type(lv) || lv_is_cache_type(lv);

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