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Fix lvm.h formatting.
This commit is contained in:
Dave Wysochanski
parent
f7bc94ac3a
commit
f4edfec799
302
liblvm/lvm.h
302
liblvm/lvm.h
@ -136,18 +136,17 @@ struct lvm_str_list {
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* Once all LVM operations have been completed, use lvm_quit to release
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* the handle and any associated resources.
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*
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* \param system_dir
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* Set an alternative LVM system directory. Use NULL to use the
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* default value. If the environment variable LVM_SYSTEM_DIR is set,
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* it will override any system_dir setting.
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* \return A valid LVM handle is returned or NULL if there has been a
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* memory allocation problem. You have to check if an error occured
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* with the lvm_error function.
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* \param system_dir
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* Set an alternative LVM system directory. Use NULL to use the
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* default value. If the environment variable LVM_SYSTEM_DIR is set,
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* it will override any system_dir setting.
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*
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* \return
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* A valid LVM handle is returned or NULL if there has been a
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* memory allocation problem. You have to check if an error occured
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* with the lvm_error function.
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*/
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// FIXME: Sort out this alignment. "Set an" directly below "system_dir"
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// looks awful. Indent differently? More blank lines?
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lvm_t lvm_init(const char *system_dir);
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// FIXME Find a better name. lvm_init.
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/**
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* Destroy a LVM handle allocated with lvm_init.
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@ -158,7 +157,7 @@ lvm_t lvm_init(const char *system_dir);
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* cannot be used subsequently.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*/
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void lvm_quit(lvm_t libh);
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@ -170,8 +169,10 @@ void lvm_quit(lvm_t libh);
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* the application.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* \return 0 (success) or -1 (failure).
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* Handle obtained from lvm_init.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_config_reload(lvm_t libh);
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@ -184,11 +185,14 @@ int lvm_config_reload(lvm_t libh);
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* you should use lvm_config_reload to apply the new settings.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*
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* \param config_string
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* LVM configuration string to apply. See the lvm.conf file man page
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* for the format of the config string.
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* \return 0 (success) or -1 (failure).
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* LVM configuration string to apply. See the lvm.conf file man page
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* for the format of the config string.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_config_override(lvm_t libh, const char *config_string);
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@ -204,9 +208,10 @@ int lvm_config_override(lvm_t libh, const char *config_string);
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* returns a value.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*
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* \return An errno value describing the last LVM error.
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* \return
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* An errno value describing the last LVM error.
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*/
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int lvm_errno(lvm_t libh);
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@ -217,9 +222,10 @@ int lvm_errno(lvm_t libh);
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* specific error information for a function that is known to have failed.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*
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* \return An error string describing the last LVM error.
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* \return
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* An error string describing the last LVM error.
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*/
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const char *lvm_errmsg(lvm_t libh);
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@ -227,7 +233,8 @@ const char *lvm_errmsg(lvm_t libh);
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* Scan all devices on the system for VGs and LVM metadata.
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* FIXME: Elaborate on when to use, side-effects, .cache file, etc
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*
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* \return 0 (success) or -1 (failure).
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_scan(lvm_t libh);
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@ -258,11 +265,12 @@ int lvm_scan(lvm_t libh);
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* }
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*
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*
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* \return A list with entries of type struct lvm_str_list, containing the
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* VG name strings of the Volume Groups known to the system.
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* NULL is returned if unable to allocate memory.
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* An empty list (verify with dm_list_empty) is returned if no VGs
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* exist on the system.
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* \return
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* A list with entries of type struct lvm_str_list, containing the
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* VG name strings of the Volume Groups known to the system.
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* NULL is returned if unable to allocate memory.
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* An empty list (verify with dm_list_empty) is returned if no VGs
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* exist on the system.
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*/
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struct dm_list *lvm_list_vg_names(lvm_t libh);
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@ -278,13 +286,14 @@ struct dm_list *lvm_list_vg_names(lvm_t libh);
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* begin with a "#" and should be filtered out and not used.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*
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* \return A list with entries of type struct lvm_str_list, containing the
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* VG UUID strings of the Volume Groups known to the system.
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* NULL is returned if unable to allocate memory.
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* An empty list (verify with dm_list_empty) is returned if no VGs
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* exist on the system.
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* \return
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* A list with entries of type struct lvm_str_list, containing the
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* VG UUID strings of the Volume Groups known to the system.
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* NULL is returned if unable to allocate memory.
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* An empty list (verify with dm_list_empty) is returned if no VGs
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* exist on the system.
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*/
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struct dm_list *lvm_list_vg_uuids(lvm_t libh);
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@ -294,14 +303,18 @@ struct dm_list *lvm_list_vg_uuids(lvm_t libh);
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* Open a VG for reading or writing.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*
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* \param vgname
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* Name of the VG to open.
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* Name of the VG to open.
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*
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* \param mode
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* Open mode - either "r" (read) or "w" (read/write).
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* Any other character results in an error with EINVAL set.
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* Open mode - either "r" (read) or "w" (read/write).
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* Any other character results in an error with EINVAL set.
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*
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* \param flags
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* Open flags - currently ignored.
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* Open flags - currently ignored.
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*
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* \return non-NULL VG handle (success) or NULL (failure).
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*/
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vg_t *lvm_vg_open(lvm_t libh, const char *vgname, const char *mode,
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@ -320,10 +333,13 @@ vg_t *lvm_vg_open(lvm_t libh, const char *vgname, const char *mode,
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* release the VG handle.
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*
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* \param libh
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* Handle obtained from lvm_init.
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* Handle obtained from lvm_init.
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*
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* \param vg_name
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* Name of the VG to open.
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* \return non-NULL vg handle (success) or NULL (failure)
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* Name of the VG to open.
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*
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* \return
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* non-NULL vg handle (success) or NULL (failure)
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*/
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vg_t *lvm_vg_create(lvm_t libh, const char *vg_name);
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@ -335,8 +351,10 @@ vg_t *lvm_vg_create(lvm_t libh, const char *vg_name);
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* with lvm_vg_close.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return 0 (success) or -1 (failure).
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_vg_write(vg_t *vg);
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@ -347,8 +365,10 @@ int lvm_vg_write(vg_t *vg);
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* lvm_vg_write.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return 0 (success) or -1 (failure).
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_vg_remove(vg_t *vg);
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@ -359,8 +379,10 @@ int lvm_vg_remove(vg_t *vg);
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* handle.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return 0 (success) or -1 (failure).
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_vg_close(vg_t *vg);
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@ -377,10 +399,13 @@ int lvm_vg_close(vg_t *vg);
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* before calling lvm_vg_extend.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \param device
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* Absolute pathname of device to add to VG.
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* \return 0 (success) or -1 (failure).
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* Absolute pathname of device to add to VG.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_vg_extend(vg_t *vg, const char *device);
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@ -393,12 +418,13 @@ int lvm_vg_extend(vg_t *vg, const char *device);
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* lvm_vg_close.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \param device
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* Name of device to remove from VG.
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* Name of device to remove from VG.
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*
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* \return 0 (success) or -1 (failure).
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_vg_reduce(vg_t *vg, const char *device);
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@ -411,10 +437,13 @@ int lvm_vg_reduce(vg_t *vg, const char *device);
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* handle with lvm_vg_close.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \param new_size
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* New extent size in bytes.
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* \return 0 (success) or -1 (failure).
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* New extent size in bytes.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_vg_set_extent_size(vg_t *vg, uint32_t new_size);
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@ -425,8 +454,10 @@ int lvm_vg_set_extent_size(vg_t *vg, uint32_t new_size);
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* using dm_free().
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Copy of the uuid string.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Copy of the uuid string.
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*/
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char *lvm_vg_get_uuid(const vg_t *vg);
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@ -437,8 +468,10 @@ char *lvm_vg_get_uuid(const vg_t *vg);
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* using dm_free().
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Copy of the name.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Copy of the name.
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*/
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char *lvm_vg_get_name(const vg_t *vg);
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@ -446,8 +479,10 @@ char *lvm_vg_get_name(const vg_t *vg);
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* Get the current size in bytes of a volume group.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Size in bytes.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Size in bytes.
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*/
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uint64_t lvm_vg_get_size(const vg_t *vg);
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@ -455,8 +490,10 @@ uint64_t lvm_vg_get_size(const vg_t *vg);
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* Get the current unallocated space in bytes of a volume group.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Free size in bytes.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Free size in bytes.
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*/
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uint64_t lvm_vg_get_free_size(const vg_t *vg);
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@ -464,8 +501,10 @@ uint64_t lvm_vg_get_free_size(const vg_t *vg);
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* Get the current extent size in bytes of a volume group.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Extent size in bytes.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Extent size in bytes.
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*/
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uint64_t lvm_vg_get_extent_size(const vg_t *vg);
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@ -473,8 +512,10 @@ uint64_t lvm_vg_get_extent_size(const vg_t *vg);
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* Get the current number of total extents of a volume group.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Extent count.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Extent count.
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*/
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uint64_t lvm_vg_get_extent_count(const vg_t *vg);
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@ -482,8 +523,10 @@ uint64_t lvm_vg_get_extent_count(const vg_t *vg);
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* Get the current number of free extents of a volume group.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Free extent count.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Free extent count.
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*/
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uint64_t lvm_vg_get_free_extent_count(const vg_t *vg);
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@ -491,8 +534,10 @@ uint64_t lvm_vg_get_free_extent_count(const vg_t *vg);
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* Get the current number of physical volumes of a volume group.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return Physical volume count.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* Physical volume count.
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*/
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uint64_t lvm_vg_get_pv_count(const vg_t *vg);
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@ -502,9 +547,11 @@ uint64_t lvm_vg_get_pv_count(const vg_t *vg);
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* Return a list of LV handles for a given VG handle.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* \return A list of lv_list_t structures containing lv handles for this vg.
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* If no LVs exist on the given VG, NULL is returned.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \return
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* A list of lv_list_t structures containing lv handles for this vg.
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* If no LVs exist on the given VG, NULL is returned.
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*/
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struct dm_list *lvm_vg_list_lvs(vg_t *vg);
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@ -517,12 +564,16 @@ struct dm_list *lvm_vg_list_lvs(vg_t *vg);
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* lv_create_single is refactored by segtype.
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*
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* \param vg
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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* VG handle obtained from lvm_vg_create or lvm_vg_open.
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*
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* \param name
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* Name of logical volume to create.
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* Name of logical volume to create.
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*
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* \param size
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* Size of logical volume in extents.
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* \return LV object
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* Size of logical volume in extents.
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*
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* \return
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* non-NULL handle to an LV object created, or NULL if creation fails.
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*
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*/
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lv_t *lvm_vg_create_lv_linear(vg_t *vg, const char *name, uint64_t size);
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@ -536,8 +587,10 @@ lv_t *lvm_vg_create_lv_linear(vg_t *vg, const char *name, uint64_t size);
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* lvconvert.
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*
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* \param lv
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* Logical volume handle.
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* \return 0 (success) or -1 (failure).
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* Logical volume handle.
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*
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* \return
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* 0 (success) or -1 (failure).
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*/
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int lvm_lv_activate(lv_t *lv);
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@ -547,8 +600,10 @@ int lvm_lv_activate(lv_t *lv);
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* This function is the equivalent of the lvm command "lvchange -an".
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*
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* \param lv
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* Logical volume handle.
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* \return 0 (success) or -1 (failure).
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* 0 (success) or -1 (failure).
|
||||
*/
|
||||
int lvm_lv_deactivate(lv_t *lv);
|
||||
|
||||
@ -563,8 +618,10 @@ int lvm_lv_deactivate(lv_t *lv);
|
||||
* lvm_vg_write.
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* \return 0 (success) or -1 (failure).
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* 0 (success) or -1 (failure).
|
||||
*/
|
||||
int lvm_vg_remove_lv(lv_t *lv);
|
||||
|
||||
@ -575,8 +632,10 @@ int lvm_vg_remove_lv(lv_t *lv);
|
||||
* using dm_free().
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* \return Copy of the uuid string.
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* Copy of the uuid string.
|
||||
*/
|
||||
char *lvm_lv_get_uuid(const lv_t *lv);
|
||||
|
||||
@ -587,8 +646,10 @@ char *lvm_lv_get_uuid(const lv_t *lv);
|
||||
* using dm_free().
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* \return Copy of the name.
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* Copy of the name.
|
||||
*/
|
||||
char *lvm_lv_get_name(const lv_t *lv);
|
||||
|
||||
@ -596,8 +657,10 @@ char *lvm_lv_get_name(const lv_t *lv);
|
||||
* Get the current size in bytes of a logical volume.
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* \return Size in bytes.
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* Size in bytes.
|
||||
*/
|
||||
uint64_t lvm_lv_get_size(const lv_t *lv);
|
||||
|
||||
@ -605,8 +668,10 @@ uint64_t lvm_lv_get_size(const lv_t *lv);
|
||||
* Get the current activation state of a logical volume.
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* \return 1 if the LV is active in the kernel, 0 if not
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* 1 if the LV is active in the kernel, 0 if not
|
||||
*/
|
||||
uint64_t lvm_lv_is_active(const lv_t *lv);
|
||||
|
||||
@ -614,8 +679,10 @@ uint64_t lvm_lv_is_active(const lv_t *lv);
|
||||
* Get the current suspended state of a logical volume.
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* \return 1 if the LV is suspended in the kernel, 0 if not
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \return
|
||||
* 1 if the LV is suspended in the kernel, 0 if not
|
||||
*/
|
||||
uint64_t lvm_lv_is_suspended(const lv_t *lv);
|
||||
|
||||
@ -623,10 +690,13 @@ uint64_t lvm_lv_is_suspended(const lv_t *lv);
|
||||
* Resize logical volume to new_size bytes.
|
||||
*
|
||||
* \param lv
|
||||
* Logical volume handle.
|
||||
* Logical volume handle.
|
||||
*
|
||||
* \param new_size
|
||||
* New size in bytes.
|
||||
* \return 0 (success) or -1 (failure).
|
||||
* New size in bytes.
|
||||
*
|
||||
* \return
|
||||
* 0 (success) or -1 (failure).
|
||||
*
|
||||
*/
|
||||
int lvm_lv_resize(const lv_t *lv, uint64_t new_size);
|
||||
@ -643,9 +713,11 @@ int lvm_lv_resize(const lv_t *lv, uint64_t new_size);
|
||||
* Return a list of PV handles for a given VG handle.
|
||||
*
|
||||
* \param vg
|
||||
* VG handle obtained from lvm_vg_create or lvm_vg_open.
|
||||
* \return A list of pv_list_t structures containing pv handles for this vg.
|
||||
* If no PVs exist on the given VG, NULL is returned.
|
||||
* VG handle obtained from lvm_vg_create or lvm_vg_open.
|
||||
*
|
||||
* \return
|
||||
* A list of pv_list_t structures containing pv handles for this vg.
|
||||
* If no PVs exist on the given VG, NULL is returned.
|
||||
*/
|
||||
struct dm_list *lvm_vg_list_pvs(vg_t *vg);
|
||||
|
||||
@ -656,8 +728,10 @@ struct dm_list *lvm_vg_list_pvs(vg_t *vg);
|
||||
* using dm_free().
|
||||
*
|
||||
* \param pv
|
||||
* Physical volume handle.
|
||||
* \return Copy of the uuid string.
|
||||
* Physical volume handle.
|
||||
*
|
||||
* \return
|
||||
* Copy of the uuid string.
|
||||
*/
|
||||
char *lvm_pv_get_uuid(const pv_t *pv);
|
||||
|
||||
@ -668,8 +742,10 @@ char *lvm_pv_get_uuid(const pv_t *pv);
|
||||
* using dm_free().
|
||||
*
|
||||
* \param pv
|
||||
* Physical volume handle.
|
||||
* \return Copy of the name.
|
||||
* Physical volume handle.
|
||||
*
|
||||
* \return
|
||||
* Copy of the name.
|
||||
*/
|
||||
char *lvm_pv_get_name(const pv_t *pv);
|
||||
|
||||
@ -677,8 +753,10 @@ char *lvm_pv_get_name(const pv_t *pv);
|
||||
* Get the current number of metadata areas in the physical volume.
|
||||
*
|
||||
* \param pv
|
||||
* Physical volume handle.
|
||||
* \return metadata area count.
|
||||
* Physical volume handle.
|
||||
*
|
||||
* \return
|
||||
* Number of metadata areas in the PV.
|
||||
*/
|
||||
uint64_t lvm_pv_get_mda_count(const pv_t *pv);
|
||||
|
||||
@ -686,11 +764,13 @@ uint64_t lvm_pv_get_mda_count(const pv_t *pv);
|
||||
* Resize physical volume to new_size bytes.
|
||||
*
|
||||
* \param pv
|
||||
* Physical volume handle.
|
||||
* \param new_size
|
||||
* New size in bytes.
|
||||
* \return 0 (success) or -1 (failure).
|
||||
* Physical volume handle.
|
||||
*
|
||||
* \param new_size
|
||||
* New size in bytes.
|
||||
*
|
||||
* \return
|
||||
* 0 (success) or -1 (failure).
|
||||
*/
|
||||
int lvm_pv_resize(const pv_t *pv, uint64_t new_size);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user