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From: Andiry Xu <jix024@eng.ucsd.edu>
To: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Linux FS Devel <linux-fsdevel@vger.kernel.org>,
	linux-kernel@vger.kernel.org,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>,
	Dan Williams <dan.j.williams@intel.com>,
	"Rudoff, Andy" <andy.rudoff@intel.com>,
	coughlan@redhat.com, Steven Swanson <swanson@cs.ucsd.edu>,
	Dave Chinner <david@fromorbit.com>,
	jack@suse.com, swhiteho@redhat.com, miklos@szeredi.hu,
	Jian Xu <andiry.xu@gmail.com>, Andiry Xu <jix024@cs.ucsd.edu>
Subject: Re: [RFC v2 14/83] Add range node kmem cache.
Date: Sun, 11 Mar 2018 14:31:15 -0700	[thread overview]
Message-ID: <CAD4Szjurt=QyWr=yO-z_p56uvMAcv2mb5M-j21Lmy3we0Xo4mg@mail.gmail.com> (raw)
In-Reply-To: <73dae166-2e71-7fc9-7985-89cc44b38bf6@gmail.com>

On Sun, Mar 11, 2018 at 4:55 AM, Nikolay Borisov
<n.borisov.lkml@gmail.com> wrote:
>
>
> On 10.03.2018 20:17, Andiry Xu wrote:
>> From: Andiry Xu <jix024@cs.ucsd.edu>
>>
>> Range node specifies a range of [start, end]. and is managed by a red-black tree.
>> NOVA uses range node to manage NVM allocator and inodes being used.
>>
>> Signed-off-by: Andiry Xu <jix024@cs.ucsd.edu>
>> ---
>>  fs/nova/nova.h  |  8 ++++++++
>>  fs/nova/super.c | 45 ++++++++++++++++++++++++++++++++++++++++++---
>>  fs/nova/super.h |  2 ++
>>  3 files changed, 52 insertions(+), 3 deletions(-)
>>
>> diff --git a/fs/nova/nova.h b/fs/nova/nova.h
>> index ba7ffca..e0e85fb 100644
>> --- a/fs/nova/nova.h
>> +++ b/fs/nova/nova.h
>> @@ -301,6 +301,14 @@ static inline u64 nova_get_epoch_id(struct super_block *sb)
>>  }
>>
>>  #include "inode.h"
>> +
>> +/* A node in the RB tree representing a range of pages */
>> +struct nova_range_node {
>> +     struct rb_node node;
>> +     unsigned long range_low;
>> +     unsigned long range_high;
>> +};
>> +
>>  #include "bbuild.h"
>>
>>  /* ====================================================== */
>> diff --git a/fs/nova/super.c b/fs/nova/super.c
>> index f41cc04..aec1cd3 100644
>> --- a/fs/nova/super.c
>> +++ b/fs/nova/super.c
>> @@ -52,6 +52,7 @@ MODULE_PARM_DESC(nova_dbgmask, "Control debugging output");
>>  static struct super_operations nova_sops;
>>
>>  static struct kmem_cache *nova_inode_cachep;
>> +static struct kmem_cache *nova_range_node_cachep;
>>
>>
>>  /* FIXME: should the following variable be one per NOVA instance? */
>> @@ -686,6 +687,20 @@ static void nova_put_super(struct super_block *sb)
>>       sb->s_fs_info = NULL;
>>  }
>>
>> +inline void nova_free_range_node(struct nova_range_node *node)
>> +{
>> +     kmem_cache_free(nova_range_node_cachep, node);
>> +}
>> +
>> +inline struct nova_range_node *nova_alloc_range_node(struct super_block *sb)
>> +{
>> +     struct nova_range_node *p;
>> +
>> +     p = (struct nova_range_node *)
> nit: needless cast

Thanks. Will fix.

Andiry

>> +             kmem_cache_zalloc(nova_range_node_cachep, GFP_NOFS);
>> +     return p;
>> +}
>> +
>>  static struct inode *nova_alloc_inode(struct super_block *sb)
>>  {
>>       struct nova_inode_info *vi;
>> @@ -719,6 +734,17 @@ static void init_once(void *foo)
>>       inode_init_once(&vi->vfs_inode);
>>  }
>>
>> +static int __init init_rangenode_cache(void)
>> +{
>> +     nova_range_node_cachep = kmem_cache_create("nova_range_node_cache",
>> +                                     sizeof(struct nova_range_node),
>> +                                     0, (SLAB_RECLAIM_ACCOUNT |
>
>> +                                     SLAB_MEM_SPREAD), NULL);
>> +     if (nova_range_node_cachep == NULL)
>> +             return -ENOMEM;
>> +     return 0;
>> +}
>> +
>>  static int __init init_inodecache(void)
>>  {
>>       nova_inode_cachep = kmem_cache_create("nova_inode_cache",
>> @@ -740,6 +766,11 @@ static void destroy_inodecache(void)
>>       kmem_cache_destroy(nova_inode_cachep);
>>  }
>>
>> +static void destroy_rangenode_cache(void)
>> +{
>> +     kmem_cache_destroy(nova_range_node_cachep);
>> +}
>> +
>>
>>  /*
>>   * the super block writes are all done "on the fly", so the
>> @@ -781,20 +812,27 @@ static int __init init_nova_fs(void)
>>       nova_info("Arch new instructions support: CLWB %s\n",
>>                       support_clwb ? "YES" : "NO");
>>
>> -     rc = init_inodecache();
>> +     rc = init_rangenode_cache();
>>       if (rc)
>>               goto out;
>>
>> -     rc = register_filesystem(&nova_fs_type);
>> +     rc = init_inodecache();
>>       if (rc)
>>               goto out1;
>>
>> +     rc = register_filesystem(&nova_fs_type);
>> +     if (rc)
>> +             goto out2;
>> +
>>  out:
>>       NOVA_END_TIMING(init_t, init_time);
>>       return rc;
>>
>> -out1:
>> +out2:
>>       destroy_inodecache();
>> +
>> +out1:
>> +     destroy_rangenode_cache();
>>       goto out;
>>  }
>>
>> @@ -802,6 +840,7 @@ static void __exit exit_nova_fs(void)
>>  {
>>       unregister_filesystem(&nova_fs_type);
>>       destroy_inodecache();
>> +     destroy_rangenode_cache();
>>  }
>>
>>  MODULE_AUTHOR("Andiry Xu <jix024@cs.ucsd.edu>");
>> diff --git a/fs/nova/super.h b/fs/nova/super.h
>> index cb53908..b478080 100644
>> --- a/fs/nova/super.h
>> +++ b/fs/nova/super.h
>> @@ -145,5 +145,7 @@ static inline struct nova_super_block *nova_get_super(struct super_block *sb)
>>  }
>>
>>  extern void nova_error_mng(struct super_block *sb, const char *fmt, ...);
>> +extern struct nova_range_node *nova_alloc_range_node(struct super_block *sb);
>> +extern void nova_free_range_node(struct nova_range_node *node);
>>
>>  #endif
>>

  reply	other threads:[~2018-03-11 21:31 UTC|newest]

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-10 18:17 [RFC v2 00/83] NOVA: a new file system for persistent memory Andiry Xu
2018-03-10 18:17 ` [RFC v2 01/83] Introduction and documentation of NOVA filesystem Andiry Xu
2018-03-19 20:43   ` Randy Dunlap
2018-03-19 23:00     ` Andiry Xu
2018-04-22  8:05   ` Pavel Machek
2018-03-10 18:17 ` [RFC v2 02/83] Add nova_def.h Andiry Xu
2018-03-10 18:17 ` [RFC v2 03/83] Add super.h Andiry Xu
2018-03-15  4:54   ` Darrick J. Wong
2018-03-15  6:11     ` Andiry Xu
2018-03-15  9:05       ` Arnd Bergmann
2018-03-15 17:51         ` Andiry Xu
2018-03-15 20:04           ` Andreas Dilger
2018-03-15 20:38           ` Arnd Bergmann
2018-03-16  2:59             ` Theodore Y. Ts'o
2018-03-16  6:17               ` Andiry Xu
2018-03-16  6:30                 ` Darrick J. Wong
2018-03-16  9:19               ` Arnd Bergmann
2018-03-10 18:17 ` [RFC v2 04/83] NOVA inode definition Andiry Xu
2018-03-15  5:06   ` Darrick J. Wong
2018-03-15  6:16     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 05/83] Add NOVA filesystem definitions and useful helper routines Andiry Xu
2018-03-11 12:00   ` Nikolay Borisov
2018-03-11 19:22     ` Eric Biggers
2018-03-11 21:45       ` Andiry Xu
2018-03-19 19:39       ` Andiry Xu
2018-03-19 20:30         ` Eric Biggers
2018-03-19 21:59           ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 06/83] Add inode get/read methods Andiry Xu
2018-04-23  6:12   ` Darrick J. Wong
2018-04-23 15:55     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 07/83] Initialize inode_info and rebuild inode information in nova_iget() Andiry Xu
2018-03-10 18:17 ` [RFC v2 08/83] NOVA superblock operations Andiry Xu
2018-03-10 18:17 ` [RFC v2 09/83] Add Kconfig and Makefile Andiry Xu
2018-03-11 12:15   ` Nikolay Borisov
2018-03-11 21:32     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 10/83] Add superblock integrity check Andiry Xu
2018-03-10 18:17 ` [RFC v2 11/83] Add timing and I/O statistics for performance analysis and profiling Andiry Xu
2018-03-10 18:17 ` [RFC v2 12/83] Add timing for mount and init Andiry Xu
2018-03-10 18:17 ` [RFC v2 13/83] Add remount_fs and show_options methods Andiry Xu
2018-03-10 18:17 ` [RFC v2 14/83] Add range node kmem cache Andiry Xu
2018-03-11 11:55   ` Nikolay Borisov
2018-03-11 21:31     ` Andiry Xu [this message]
2018-03-10 18:17 ` [RFC v2 15/83] Add free list data structure Andiry Xu
2018-03-10 18:17 ` [RFC v2 16/83] Initialize block map and free lists in nova_init() Andiry Xu
2018-03-11 12:12   ` Nikolay Borisov
2018-03-11 21:30     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 17/83] Add statfs support Andiry Xu
2018-03-10 18:17 ` [RFC v2 18/83] Add freelist statistics printing Andiry Xu
2018-03-10 18:18 ` [RFC v2 19/83] Add pmem block free routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 20/83] Pmem block allocation routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 21/83] Add log structure Andiry Xu
2018-03-10 18:18 ` [RFC v2 22/83] Inode log pages allocation and reclaimation Andiry Xu
2018-03-10 18:18 ` [RFC v2 23/83] Save allocator to pmem in put_super Andiry Xu
2018-03-10 18:18 ` [RFC v2 24/83] Initialize and allocate inode table Andiry Xu
2018-03-10 18:18 ` [RFC v2 25/83] Support get normal inode address and inode table extentsion Andiry Xu
2018-03-10 18:18 ` [RFC v2 26/83] Add inode_map to track inuse inodes Andiry Xu
2018-03-10 18:18 ` [RFC v2 27/83] Save the inode inuse list to pmem upon umount Andiry Xu
2018-03-10 18:18 ` [RFC v2 28/83] Add NOVA address space operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 29/83] Add write_inode and dirty_inode routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 30/83] New NOVA inode allocation Andiry Xu
2018-03-10 18:18 ` [RFC v2 31/83] Add new vfs " Andiry Xu
2018-03-10 18:18 ` [RFC v2 32/83] Add log entry definitions Andiry Xu
2018-03-10 18:18 ` [RFC v2 33/83] Inode log and entry printing for debug purpose Andiry Xu
2018-03-10 18:18 ` [RFC v2 34/83] Journal: NOVA light weight journal definitions Andiry Xu
2018-03-10 18:18 ` [RFC v2 35/83] Journal: Lite journal helper routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 36/83] Journal: Lite journal recovery Andiry Xu
2018-03-10 18:18 ` [RFC v2 37/83] Journal: Lite journal create and commit Andiry Xu
2018-03-10 18:18 ` [RFC v2 38/83] Journal: NOVA lite journal initialization Andiry Xu
2018-03-10 18:18 ` [RFC v2 39/83] Log operation: dentry append Andiry Xu
2018-03-10 18:18 ` [RFC v2 40/83] Log operation: file write entry append Andiry Xu
2018-03-10 18:18 ` [RFC v2 41/83] Log operation: setattr " Andiry Xu
2018-03-10 18:18 ` [RFC v2 42/83] Log operation: link change append Andiry Xu
2018-03-10 18:18 ` [RFC v2 43/83] Log operation: in-place update log entry Andiry Xu
2018-03-10 18:18 ` [RFC v2 44/83] Log operation: invalidate log entries Andiry Xu
2018-03-10 18:18 ` [RFC v2 45/83] Log operation: file inode log lookup and assign Andiry Xu
2018-03-10 18:18 ` [RFC v2 46/83] Dir: Add Directory radix tree insert/remove methods Andiry Xu
2018-03-10 18:18 ` [RFC v2 47/83] Dir: Add initial dentries when initializing a directory inode log Andiry Xu
2018-03-10 18:18 ` [RFC v2 48/83] Dir: Readdir operation Andiry Xu
2018-03-10 18:18 ` [RFC v2 49/83] Dir: Append create/remove dentry Andiry Xu
2018-03-10 18:18 ` [RFC v2 50/83] Inode: Add nova_evict_inode Andiry Xu
2018-03-10 18:18 ` [RFC v2 51/83] Rebuild: directory inode Andiry Xu
2018-03-10 18:18 ` [RFC v2 52/83] Rebuild: file inode Andiry Xu
2018-03-10 18:18 ` [RFC v2 53/83] Namei: lookup Andiry Xu
2018-03-10 18:18 ` [RFC v2 54/83] Namei: create and mknod Andiry Xu
2018-03-10 18:18 ` [RFC v2 55/83] Namei: mkdir Andiry Xu
2018-03-10 18:18 ` [RFC v2 56/83] Namei: link and unlink Andiry Xu
2018-03-10 18:18 ` [RFC v2 57/83] Namei: rmdir Andiry Xu
2018-03-10 18:18 ` [RFC v2 58/83] Namei: rename Andiry Xu
2018-03-10 18:18 ` [RFC v2 59/83] Namei: setattr Andiry Xu
2018-03-10 18:18 ` [RFC v2 60/83] Add special inode operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 61/83] Super: Add nova_export_ops Andiry Xu
2018-03-10 18:18 ` [RFC v2 62/83] File: getattr and file inode operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 63/83] File operation: llseek Andiry Xu
2018-03-10 18:18 ` [RFC v2 64/83] File operation: open, fsync, flush Andiry Xu
2018-03-10 18:18 ` [RFC v2 65/83] File operation: read Andiry Xu
2018-03-10 18:18 ` [RFC v2 66/83] Super: Add file write item cache Andiry Xu
2018-03-10 18:18 ` [RFC v2 67/83] Dax: commit list of file write items to log Andiry Xu
2018-03-10 18:18 ` [RFC v2 68/83] File operation: copy-on-write write Andiry Xu
2018-03-10 18:18 ` [RFC v2 69/83] Super: Add module param inplace_data_updates Andiry Xu
2018-03-10 18:18 ` [RFC v2 70/83] File operation: Inplace write Andiry Xu
2018-03-10 18:18 ` [RFC v2 71/83] Symlink support Andiry Xu
2018-03-10 18:18 ` [RFC v2 72/83] File operation: fallocate Andiry Xu
2018-03-10 18:18 ` [RFC v2 73/83] Dax: Add iomap operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 74/83] File operation: Mmap Andiry Xu
2018-03-10 18:18 ` [RFC v2 75/83] File operation: read/write iter Andiry Xu
2018-03-10 18:18 ` [RFC v2 76/83] Ioctl support Andiry Xu
2018-03-10 18:18 ` [RFC v2 77/83] GC: Fast garbage collection Andiry Xu
2018-03-10 18:18 ` [RFC v2 78/83] GC: Thorough " Andiry Xu
2018-03-10 18:19 ` [RFC v2 79/83] Normal recovery Andiry Xu
2018-03-10 18:19 ` [RFC v2 80/83] Failure recovery: bitmap operations Andiry Xu
2018-03-10 18:19 ` [RFC v2 81/83] Failure recovery: Inode pages recovery routines Andiry Xu
2018-03-10 18:19 ` [RFC v2 82/83] Failure recovery: Per-CPU recovery Andiry Xu
2018-03-10 18:19 ` [RFC v2 83/83] Sysfs support Andiry Xu
2018-03-15  0:33   ` Randy Dunlap
2018-03-15  6:07     ` Andiry Xu
2018-03-22 15:00   ` David Sterba
2018-03-23  0:31     ` Andiry Xu
2018-03-11  2:14 ` [RFC v2 00/83] NOVA: a new file system for persistent memory Theodore Y. Ts'o
2018-03-11  4:58   ` Andiry Xu

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