_sel_policy {
> int alloc_mode; /* LFS or SSR */
> int gc_mode;/* GC_CB or GC_GREEDY */
> unsigned long *dirty_segmap;/* dirty segment bitmap */
> + int dirty_type;
int max_search; /* maximum # of segments to search */
> unsigned int offset;/* last scanned bitmap offset */
> unsigned int ofs_unit; /* bitmap search unit */
> unsigned int min_cost; /* minimum cost */
--
Jaegeuk Kim
Samsung
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per(struct super_block *sb, void
> *data, int silent)
> mutex_init(&sbi->gc_mutex);
> mutex_init(&sbi->writepages);
> mutex_init(&sbi->cp_mutex);
> + init_waitqueue_head(&sbi->writeback_wqh);
> for (i = 0; i < NR_GLOBAL_LOCKS; i++)
> mutex_init(&sbi->fs_lock[i]);
> mutex_init(&sbi->node_write);
>
--
Jaegeuk Kim
Samsung
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Hi Jin,
2013-09-04 (수), 07:59 +0800, Jin Xu:
> Hi Jaegeuk,
>
> On 03/09/2013 08:45, Jaegeuk Kim wrote:
> > Hi Jin,
> >
> >> [...]
> >>>
> >>> It seems that we can obtain the performance gain just by setting the
> >>> MAX_VICT
Hi Jin,
2013-09-04 (수), 21:17 +0800, Jin Xu:
> Hi Jaegeuk,
>
> On 04/09/2013 17:40, Jaegeuk Kim wrote:
> > Hi Jin,
> >
> > 2013-09-04 (수), 07:59 +0800, Jin Xu:
> >> Hi Jaegeuk,
> >>
> >> On 03/09/2013 08:45, Jaegeuk Kim wrote:
> >>&g
ync, sector = 500109320, size = 500K
And finally, we can improve the sequential write performance,
from 458.775 MB/s to 479.945 MB/s on SSD.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/node.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/nod
irty segments for SSR use most of the
> time when free space is in shortage). The well-known iozone test tool
> was not used for benchmarking the patch becuase it seems do not have
> a test case that performs random re-write on a full disk.
>
> This patch is the revised version based
36f571e9ed0419e73d127e18aa8992ced867268c:
Merge tag 'firewire-fix' of
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 (2013-07-29
17:08:22 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
tags/for-f2fs-3.1
75c7dc3..4f27596
>
> --- a/fs/f2fs/super.c
>
> +++ b/fs/f2fs/super.c
>
> @@ -657,6 +657,7 @@ static int f2fs_fill_super(struct super_block *sb,
> void *data, int silent)
>
> mutex_init(&sbi->cp_mutex);
>
> for (i = 0; i < NR_GLOBAL_LOCKS; i++)
>
>
>
>
>
>
>
>
> --
> Learn the latest--Visual Studio 2012, SharePoint 2013, SQL
> 2012, more!
> Discover the easy way to master current and pr
spin_lock_init(&sbi->stat_lock);
>
> (END)
>
>
>
>
>
>
>
>
> --
> Learn t
t; > + spin_unlock(&sbi->spin_lock);
> >
> > +
> >
> > + mutex_lock(&sbi->fs_lock[next_lock]);
> >
> > return next_lock;
> >
> > }
> >
> >
> >
> > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
Hi Russ,
The usage of fs_locks is for the recovery, so it doesn't matter
with stress-testing.
Actually what I've concerned is that we should not grab two or
more fs_locks in the same call path.
Thanks,
2013/9/11 Russ Knize :
> Hi Jaegeuk/Gu,
>
> I've removed the lock and
Hi Gu,
2013/9/11 Gu Zheng :
> Hi Jaegeuk, Chao,
>
> On 09/10/2013 08:52 AM, Jaegeuk Kim wrote:
>
>> Hi,
>>
>> At first, thank you for the report and please follow the email writing
>> rules. :)
>>
>> Anyway, I agree to the below issue.
>> One
During the f2fs_put_super procedure, we don't need to conduct checkpoint all
the time, since we don't need to do that if superblock is clean.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/super.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/super.c b/fs/f2
block according
to the wrong sbi->n_orphans.
To avoid this, simply we should make cover acquire_orphan_inode too with
f2fs_lock_op.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/namei.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
inde
Previously f2fs stores i_rdev information into i_addr.
But, if inline_xattr is set, f2fs should avoid using i_addr fields.
So, this patch adds to use i_nid fields instead of i_addrs when inline_xattr
is set.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/inode.c | 63
didn't need to do this before neither.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/f2fs.h | 13 -
fs/f2fs/super.c | 1 -
2 files changed, 14 deletions(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index a955a59..308967b 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -18,8
TIM_SEARCH_THRESH 4096
> >>
> >> struct f2fs_gc_kthread {
> >>struct task_struct *f2fs_gc_task;
> >> diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
> >> index 062424a..cd33f96 100644
> >> --- a/fs/f2fs/segment.h
> >> +++ b/fs/f2fs/segment.h
> >> @@ -142,6 +142,7 @@ struct victim_sel_policy {
> >>int alloc_mode; /* LFS or SSR */
> >>int gc_mode;/* GC_CB or GC_GREEDY */
> >>unsigned long *dirty_segmap;/* dirty segment bitmap */
> >> + int dirty_type;
> >
> > int max_search; /* maximum # of segments to search */
> >
> >>unsigned int offset;/* last scanned bitmap offset */
> >>unsigned int ofs_unit; /* bitmap search unit */
> >>unsigned int min_cost; /* minimum cost */
> >
>
--
Jaegeuk Kim
Samsung
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The current f2fs uses all the block counts with 32 bit numbers, which is able to
cover about 15TB volume.
But in calculation of utilization, f2fs multiplies the count by 100 which can
induce overflow.
This patch fixes this.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/segment.h | 2 +-
1 file
Previously, f2fs conducts SSR when free_sections() < overprovision_sections.
But, even though there are a lot of prefree segments, it can consider SSR only.
So, let's consider the number of prefree segments too for triggering SSR.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/segment.h | 3 ++-
;
> > exit:
> > - mutex_unlock_op(sbi, ilock);
> > kzfree(base_addr);
> > return error;
> > }
> > +
> > +int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
> > + const void *value, size_t valu
greg k-h
> --
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> Please read the FAQ at http://www.tux.org/lkml/
--
Jae
gt; + ri->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
> > + ri->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
> > + ri->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
> > + ri->current_depth = cpu_to_le32(F2FS_I(inode)->current_depth);
> > + ri->
age to majord...@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
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t;
Ok, I'll take a look at this.
Thanks,
> > Regards
> >
> > Dan
> >
>
> Thanks
> Boaz
> --
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> More maj
2012-10-05 (금), 19:46 +0200, Martin Steigerwald:
> Am Freitag, 5. Oktober 2012 schrieb 김재극:
> > This adds a header file describing the on-disk layout of f2fs.
> >
> > Signed-off-by: Changman Lee
> > Signed-off-by: Chul Lee
> > Signed-off-by: Jaegeuk Kim
>
I'll apply this.
Thanks,
2012-10-05 (금), 12:56 -0700, Randy Dunlap:
> On 10/05/2012 04:56 AM, 김재극 wrote:
>
> > This adds a document describing the mount options, proc entries, usage, and
> > design of Flash-Friendly File System, namely F2FS.
> >
&
2012-10-06 (토), 09:19 +0200, Stefan Hajnoczi:
> > This adds a document describing the mount options, proc entries, usage, and
> > design of Flash-Friendly File System, namely F2FS.
> >
> > Signed-off-by: Jaegeuk Kim samsung.com>
> > ---
> > Do
2012-10-06 (토), 17:54 +0400, Vyacheslav Dubeyko:
> Hi Jaegeuk,
Hi.
We know each other, right? :)
>
> > From: 김재극
> > To: v...@zeniv.linux.org.uk, 'Theodore Ts'o' ,
> > gre...@linuxfoundation.org, linux-kernel@vger.kerne
> -Original Message-
> From: Marco Stornelli [mailto:marco.storne...@gmail.com]
> Sent: Sunday, October 07, 2012 4:10 PM
> To: Jaegeuk Kim
> Cc: Vyacheslav Dubeyko; jaegeuk@samsung.com; Al Viro; ty...@mit.edu;
> gre...@linuxfoundation.org;
> linux-kernel@
> -Original Message-
> From: Vyacheslav Dubeyko [mailto:sl...@dubeyko.com]
> Sent: Sunday, October 07, 2012 9:09 PM
> To: Jaegeuk Kim
> Cc: 'Marco Stornelli'; 'Jaegeuk Kim'; 'Al Viro'; ty...@mit.edu;
> gre...@linuxfoundation.org; linux
> -Original Message-
> From: Namjae Jeon [mailto:linkinj...@gmail.com]
> Sent: Monday, October 08, 2012 7:00 PM
> To: Jaegeuk Kim
> Cc: Vyacheslav Dubeyko; Marco Stornelli; Jaegeuk Kim; Al Viro; ty...@mit.edu;
> gre...@linuxfoundation.org; linux-kernel@vger.k
> -Original Message-
> From: Namjae Jeon [mailto:linkinj...@gmail.com]
> Sent: Monday, October 08, 2012 8:22 PM
> To: Jaegeuk Kim
> Cc: Vyacheslav Dubeyko; Marco Stornelli; Jaegeuk Kim; Al Viro; ty...@mit.edu;
> gre...@linuxfoundation.org; linux-kernel@vger.k
> -Original Message-
> From: Vyacheslav Dubeyko [mailto:sl...@dubeyko.com]
> Sent: Tuesday, October 09, 2012 4:23 AM
> To: Jaegeuk Kim
> Cc: 'Marco Stornelli'; 'Jaegeuk Kim'; 'Al Viro'; ty...@mit.edu;
> gre...@linuxfoundation.org; linux
---
Jaegeuk Kim
Samsung
> -Original Message-
> From: Namjae Jeon [mailto:linkinj...@gmail.com]
> Sent: Tuesday, October 09, 2012 12:52 PM
> To: Jaegeuk Kim
> Cc: Vyacheslav Dubeyko; Marco Stornelli; Jaegeuk Kim; Al Viro; ty...@mit.edu;
> gre...@linuxfoundation
> -Original Message-
> From: linux-fsdevel-ow...@vger.kernel.org
> [mailto:linux-fsdevel-ow...@vger.kernel.org] On Behalf Of
> Luka? Czerner
> Sent: Tuesday, October 09, 2012 5:32 PM
> To: Jaegeuk Kim
> Cc: 'Namjae Jeon'; 'Vyacheslav Dubeyko';
> -Original Message-
> From: Lukáš Czerner [mailto:lczer...@redhat.com]
> Sent: Tuesday, October 09, 2012 8:01 PM
> To: Jaegeuk Kim
> Cc: 'Lukáš Czerner'; 'Namjae Jeon'; 'Vyacheslav Dubeyko'; 'Marco Stornelli';
> 'Jaegeuk Kim&
2012-10-09 (화), 14:39 +0200, Lukáš Czerner:
> On Tue, 9 Oct 2012, Jaegeuk Kim wrote:
>
> > > > > > > >
> > > > > > > > As you can see the f2fs kernel document patch, I think one of
> > > > > > > > the most
&
> -Original Message-
> From: linux-fsdevel-ow...@vger.kernel.org
> [mailto:linux-fsdevel-ow...@vger.kernel.org] On Behalf Of
> Dave Chinner
> Sent: Wednesday, October 10, 2012 6:20 AM
> To: Jaegeuk Kim
> Cc: 'Lukáš Czerner'; 'Namjae Jeon'
[snip]
> > +/*
> > + * For superblock
> > + */
> > +struct f2fs_super_block {
> > + __le32 magic; /* Magic Number */
> > + __le16 major_ver; /* Major Version */
> > + __le16 minor_ver; /* Minor Version */
> > + __le32 log_sectorsize; /* log2 (Sector size in bytes) */
[snip]
> > How about the following scenario?
> > 1. data "a" is newly written.
> > 2. checkpoint "A" is done.
> > 3. data "a" is truncated.
> > 4. checkpoint "B" is done.
> >
> > If fs supports multiple snapshots like "A" and "B" to users, it cannot
> > reuse the space allocated by
> > data "a" af
s/node.c |1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
> index 25d3036..1987036 100644
> --- a/fs/f2fs/node.c
> +++ b/fs/f2fs/node.c
> @@ -266,6 +266,7 @@ void get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
> struct node_in
F2FS_DIRTY_DENTS);
> inode_dec_dirty_dents(dir);
> - page_offset = page->index << PAGE_CACHE_SHIFT;
> f2fs_put_page(page, 1);
> } else {
> f2fs_put_page(page, 1);
>
>
--
Jaegeuk Kim
Samsung
signature.asc
Description: This is a digitally signed message part
> On Tuesday 16 October 2012, Jaegeuk Kim wrote:
> > >
> > > > > An xattr on the root inode that holds a list like this is something
> > > > > that could be set at mkfs time, but then also updated easily by new
> > > > > software
> [snip]
> > >
> > > And Would you share ppt or document of f2fs if Korea Linux Forum is
> > > finished ?
> > >
> >
> > Here I attached the slides, and LF will also share the slides.
> > Thanks,
> >
>
> I had hope that slides will have more detailed description. Maybe it is
> good for Linux Forum
, "mkfs.f2fs", is available from the following
download page: http://sourceforge.net/projects/f2fs-tools/
Usage
=
If you'd like to experience f2fs, simply:
# mkfs.f2fs /dev/sdb1
# mount -t f2fs /dev/sdb1 /mnt/f2fs
Short log
=====
Jaegeuk Kim (16):
f2fs: add
This adds a document describing the mount options, proc entries, usage, and
design of Flash-Friendly File System, namely F2FS.
Signed-off-by: Jaegeuk Kim
---
Documentation/filesystems/00-INDEX |2 +
Documentation/filesystems/f2fs.txt | 404
2 files
This adds a header file describing the on-disk layout of f2fs.
Signed-off-by: Changman Lee
Signed-off-by: Chul Lee
Signed-off-by: Jaegeuk Kim
---
include/linux/f2fs_fs.h | 362 +++
1 file changed, 362 insertions(+)
create mode 100644 include/linux
This adds the implementation of superblock operations for f2fs, which includes
- init_f2fs_fs/exit_f2fs_fs
- f2fs_mount
- super_operations of f2fs
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/super.c | 590 +++
1 file changed, 590 insertions
order to provide an address space for meta pages, f2fs_sb_info has a special
inode, namely meta_inode. This patch also adds the address space operations for
meta_inode.
Signed-off-by: Chul Lee
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/checkpoint.c | 795
management such as getting, allocating, and
truncating node blocks to index data.
- In order to cache node blocks in memory, F2FS has a node_inode with an address
space for node pages. This patch also adds the address space operations for
node_inode.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/node.c
functions to write data, node, and meta pages. Since LFS
basically produces a series of sequential writes, F2FS merges sequential bios
with a single one as much as possible to reduce the IO scheduling overhead.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/segment.c | 1795
This adds memory operations and file/file_inode operations.
- F2FS supports fallocate(), mmap(), fsync(), and basic ioctl().
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/file.c | 640
1 file changed, 640 insertions(+)
create mode 100644 fs
This adds address space operations for data.
- F2FS supports readpages(), writepages(), and direct_IO().
- Because of out-of-place writes, f2fs_direct_IO() does not write data in place.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/data.c | 701
This adds core functions to get, read, write, and evict an inode.
Signed-off-by: Changman Lee
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/inode.c | 262 +++
1 file changed, 262 insertions(+)
create mode 100644 fs/f2fs/inode.c
diff --git a/fs
This adds inode operations for directory, symlink, and special inodes.
Signed-off-by: Changman Lee
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/namei.c | 494 +++
1 file changed, 494 insertions(+)
create mode 100644 fs/f2fs/namei.c
diff --git a
This adds core functions to find, add, delete, and link dentries.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/dir.c | 657
fs/f2fs/hash.c | 98 +
2 files changed, 755 insertions(+)
create mode 100644 fs/f2fs/dir.c
create mode
This implements xattr and acl functionalities.
- F2FS uses a node page to contain use extended attributes.
Signed-off-by: Changman Lee
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/acl.c | 465 +++
fs/f2fs/acl.h | 57 +++
fs/f2fs/xattr.c
of on-demand cleaning, F2FS should
move the data right away.
- In order to identify valid blocks in a victim segment, F2FS scans the bitmap
of the segment managed as an SIT entry.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/gc.c | 1139 ++
fs
on of next node block in each direct node block for reconstructing
the chain of node blocks during the recovery.
- In order to enhance the performance, F2FS keeps a "dentry" mark also in direct
node blocks. If this is set during the recovery, F2FS replays adding a dentry.
Signed
This adds Makefile and Kconfig for f2fs, and updates Makefile and Kconfig files
in the fs directory.
Signed-off-by: Jaegeuk Kim
---
fs/Kconfig |1 +
fs/Makefile |1 +
fs/f2fs/Kconfig | 55 ++
fs/f2fs/Makefile |6
tency repeatedly,
while running a reliability test.
So, please pull the f2fs filesystem.
If I'm missing any issues or made mistakes, please let me know.
Thanks,
Jaegeuk Kim
The following changes since commit
29594404d7fe73cd80eaa4ee8c43dcc53970c60e:
Linux 3.7 (2012-12-10 19:30:57 -0800)
are
dotdot dentries should have zero-value hash code */
+ if (!memcmp(name, ".", 1) || !memcmp(name, "..", 2))
+ return 0;
+
/* Initialize the default seed for the hash checksum functions */
buf[0] = 0x67452301;
buf[1] = 0xefcdab89;
--
1.8.0.1.250.gb7973fb
--
Jaegeuk Kim
Samsung
signature.asc
Description: This is a digitally signed message part
tantiate a new page there, but the expected parameter will not be
NULL, the result is radix_tree_insert will not be called and
shmem_add_to_page_cache will not return -EEXIST, then why trigger BUG_ON ?
Regards,
Jaegeuk
So although I believe my VM_BUG_ON(error != -ENOENT) is safe, it's
not
On 11/14/2012 11:50 AM, Hugh Dickins wrote:
On Wed, 14 Nov 2012, Jaegeuk Hanse wrote:
On 11/07/2012 07:48 AM, Hugh Dickins wrote:
On Tue, 6 Nov 2012, Dave Jones wrote:
On Mon, Nov 05, 2012 at 05:32:41PM -0800, Hugh Dickins wrote:
> - /* We already confirmed swap,
ts version. I suggest to output version of f2fs utilities.
Agreed.
But, I'd like to note that f2fs is not merged yet.
IMHO, it'd better give an initial version after f2fs is merged.
Thanks,
>
> With the best regards,
> Vyacheslav Dubeyko.
>
--
Jaegeuk Kim
Samsung
--
To uns
node for node space */
> sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
> if (IS_ERR(sbi->node_inode)) {
> + pr_err("Failed to read node inode\n");
> err = PTR_ERR(sbi->node_inode);
> goto free_nm;
> }
> @@ -534,6 +559,7 @@ static int f2fs_fill_super(struct super_block *sb, void
> *data, int silent)
> /* read root inode and dentry */
> root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
> if (IS_ERR(root)) {
> + pr_err("Failed to read root inode\n");
> err = PTR_ERR(root);
> goto free_node_inode;
> }
--
Jaegeuk Kim
Samsung
signature.asc
Description: This is a digitally signed message part
GROUP assigning e_id is
> unnecessary. Remove the assignment so f2fs will build with user
> namespaces enabled.
>
> Cc: Jaegeuk Kim
> Cc: Namjae Jeon
> Cc: Amit Sahrawat
> Signed-off-by: "Eric W. Biederman"
Acked-by: Jaegeuk Kim
--
Jaegeuk Kim
Samsung
signature.asc
Description: This is a digitally signed message part
: [PATCH] f2fs: add missing pretech.h include
>
> That should have been "prefetch.h", obviously...
> At least the patch is correct.
Hi,
This was fixed by Geert Uytterhoeven before.
I'm supposed to push other bug fixes with this to linus today.
Anyway, thank you very much. :)
Hi Linus,
Please pull the following patches for bug fixes on the f2fs file system.
Thank you very much.
--
Jaegeuk Kim
Samsung
The following changes since commit
637704cbc95c02d18741b4a6e7a5d2397f8b28ce:
Merge branch 'i2c-embedded/for-next' of
git://git.pengutronix.de/git/wsa/linu
2012-12-28 (금), 03:00 +0100, Sedat Dilek:
> Looks like you didn't S-o-b-ed all patches in your tree (see Leon's or
> Geert's patch).
I've fixed all the patches.
Thank you. :)
>
> - Sedat -
>
> On Fri, Dec 28, 2012 at 2:54 AM, Jaegeuk Kim wrote:
> >
Hi Linus,
Sorry for the noise.
I've resolved the S-O-B issue in v1 tree.
Here is the pull request v2.
Thanks,
--
Jaegeuk Kim
Samsung
The following changes since commit
637704cbc95c02d18741b4a6e7a5d2397f8b28ce:
Merge branch 'i2c-embedded/for-next' of
git://git.pengutronix.d
t_lock);
> if (__lookup_free_nid_list(nid, &nm_i->free_nid_list)) {
> - spin_unlock(&nm_i->free_nid_list_lock);
> kmem_cache_free(free_nid_slab, i);
> + spin_unlock(&nm_i->free_nid_list_lock);
> return 0;
> }
>
Merged.
Thank you very much.
--
Jaegeuk Kim
Samsung
2012-12-19 (수), 22:19 +0100, Geert Uytterhoeven:
> m68k allmodconfig:
>
> fs/f2fs/data.c: In function ‘read_end_io’:
> fs/f2fs/data.c:311: error: implicit declaration of function ‘prefetchw’
>
> fs/f2fs/segm
This patch adds myself to MAINTAINERS entry for the f2fs file system.
Signed-off-by: Jaegeuk Kim
---
MAINTAINERS | 10 ++
1 file changed, 10 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 9386a63..f15d168 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3204,6 +3204,16 @@ F
On 11/16/2012 03:56 AM, Hugh Dickins wrote:
Offtopic...
On Thu, 15 Nov 2012, Jaegeuk Hanse wrote:
Another question. Why the function shmem_fallocate which you add to kernel
need call shmem_getpage?
Because shmem_getpage(_gfp) is where shmem's
page lookup and allocation complexitie
On 11/03/2012 05:32 PM, Marco Stornelli wrote:
Removed vmtruncate
Hi Marco,
Could you explain me why vmtruncate need remove? What's the problem and
how to substitute it?
Regards,
Jaegeuk
Signed-off-by: Marco Stornelli
---
include/linux/mm.h |1 -
mm/truncate.c |
On 11/16/2012 03:56 AM, Hugh Dickins wrote:
Offtopic...
On Thu, 15 Nov 2012, Jaegeuk Hanse wrote:
Another question. Why the function shmem_fallocate which you add to kernel
need call shmem_getpage?
Because shmem_getpage(_gfp) is where shmem's
page lookup and allocation complexitie
On 11/17/2012 12:48 PM, Hugh Dickins wrote:
Further offtopic..
Thanks for your explanation, Hugh. :-)
On Fri, 16 Nov 2012, Jaegeuk Hanse wrote:
Some questions about your shmem/tmpfs: misc and fallocate patchset.
- Since shmem_setattr can truncate tmpfs files, why need add another similar
ene, nr_unswapped maybe grow
bigger enough than shmem_falloc.nr_falloced
2) why return -ENOMEM, it's not really OOM, is it a trick or ...?
Regards,
Jaegeuk
On Fri, 16 Nov 2012, Jaegeuk Hanse wrote:
Some questions about your shmem/tmpfs: misc and fallocate patchset.
- Since shmem_setattr c
easy reclaimable memory. This time callback
called with nr_to_scan > 0 and we freed hzp. "
What's "usemem"? Is it a tool and how to get it? It's hard for me to
find nr_to_scan > 0 in every callset, how can nr_to_scan > 0 in your
scenario?
Regards,
Jaege
+1 when it should be 0, and then the
asymmetry stops it from being corrected with -1 before hitting the BUG.
Hi Hugh,
So if race happen, still have pages swapout after inode and radix tree
destroied.
What will happen when the pages need be swapin in the scenacio like
swapoff.
Regards,
Jaegeuk
O
On 11/19/2012 05:56 PM, Kirill A. Shutemov wrote:
On Sun, Nov 18, 2012 at 02:23:44PM +0800, Jaegeuk Hanse wrote:
On 11/16/2012 03:27 AM, Kirill A. Shutemov wrote:
From: "Kirill A. Shutemov"
H. Peter Anvin doesn't like huge zero page which sticks in memory forever
after the f
On 11/19/2012 06:23 PM, Kirill A. Shutemov wrote:
On Mon, Nov 19, 2012 at 06:20:01PM +0800, Jaegeuk Hanse wrote:
On 11/19/2012 05:56 PM, Kirill A. Shutemov wrote:
On Sun, Nov 18, 2012 at 02:23:44PM +0800, Jaegeuk Hanse wrote:
On 11/16/2012 03:27 AM, Kirill A. Shutemov wrote:
From: "Kir
On 11/19/2012 07:09 PM, Kirill A. Shutemov wrote:
On Mon, Nov 19, 2012 at 07:02:22PM +0800, Jaegeuk Hanse wrote:
On 11/19/2012 06:23 PM, Kirill A. Shutemov wrote:
On Mon, Nov 19, 2012 at 06:20:01PM +0800, Jaegeuk Hanse wrote:
On 11/19/2012 05:56 PM, Kirill A. Shutemov wrote:
On Sun, Nov 18
On 11/19/2012 12:07 AM, Jiang Liu wrote:
The commit 7f1290f2f2a4 ("mm: fix-up zone present pages") tries to
resolve an issue caused by inaccurate zone->present_pages, but that
fix is incomplete and causes regresions with HIGHMEM. And it has been
reverted by commit
5576646 revert "mm: fix-up zone
On 11/19/2012 12:07 AM, Jiang Liu wrote:
If SPARSEMEM is enabled, it won't build page structures for
non-existing pages (holes) within a zone, so provide a more accurate
estimation of pages occupied by memmap if there are big holes within
the zone.
And pages for highmem zones' memmap will be all
On 11/20/2012 10:43 AM, Jiang Liu wrote:
On 2012-11-20 10:13, Jaegeuk Hanse wrote:
On 11/19/2012 12:07 AM, Jiang Liu wrote:
The commit 7f1290f2f2a4 ("mm: fix-up zone present pages") tries to
resolve an issue caused by inaccurate zone->present_pages, but that
fix is incomple
,
In order to review this patch, I should dig sparse memory codes in
advance. But I have some confuse of codes. Why need encode/decode mem
map instead of set mem_map to ms->section_mem_map directly?
Regards,
Jaegeuk
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
On 11/20/2012 02:55 PM, Wen Congyang wrote:
At 11/20/2012 02:22 PM, Jaegeuk Hanse Wrote:
On 11/01/2012 05:44 PM, Wen Congyang wrote:
From: Yasuaki Ishimatsu
Currently __remove_section for SPARSEMEM_VMEMMAP does nothing. But
even if
we use SPARSEMEM_VMEMMAP, we can unregister the
On 11/20/2012 05:37 PM, Wen Congyang wrote:
At 11/20/2012 02:58 PM, Jaegeuk Hanse Wrote:
On 11/20/2012 02:55 PM, Wen Congyang wrote:
At 11/20/2012 02:22 PM, Jaegeuk Hanse Wrote:
On 11/01/2012 05:44 PM, Wen Congyang wrote:
From: Yasuaki Ishimatsu
Currently __remove_section for
work correctly.
Regards,
Jaegeuk
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
mm/memory_hotplug.c | 13 -
1 file changed, 8 insertions(
On 11/20/2012 07:07 PM, Yasuaki Ishimatsu wrote:
2012/11/20 5:53, Andrew Morton wrote:
On Mon, 19 Nov 2012 22:27:21 +0800
Tang Chen wrote:
This patchset provide a boot option for user to specify ZONE_MOVABLE
memory
map for each node in the system.
movablecore_map=nn[KMG]@ss[KMG]
This optio
On 11/20/2012 04:04 PM, Fengguang Wu wrote:
Hi Claudio,
Thanks for the detailed problem description!
On Fri, Nov 09, 2012 at 04:30:32PM -0300, Claudio Freire wrote:
Hi. First of all, I'm not subscribed to this list, so I'd suggest all
replies copy me personally.
I have been trying to implemen
start +
size - aysnc_size + 1, then what will happen? It seems that variable
hit_readahead_marker is false, and related codes can't run, where I miss?
Regards,
Jaegeuk
On Fri, Nov 09, 2012 at 04:30:32PM -0300, Claudio Freire wrote:
Hi. First of all, I'm not subscribed to this list,
>= META_FLUSH)
> rw = WRITE_FLUSH_FUA;
>
> + if (type == META)
Should be if (btype == META).
Thanks,
> + rw |= REQ_META;
> +
> if (sbi->bio[btype]) {
> struct bio_private *p = sbi->bio[btype]->bi_private;
>
em for tracing the filesystem
> operations for information/debugging purpose if needed. All the
> tracepoints are clubbed with respect to functionalities.
>
> Change Log:
> v4: Modified the tracepoints as per the review comments of
> Jaegeuk Kim. Follo
gned-off-by: Namjae Jeon
Signed-off-by: Pankaj Kumar
Acked-by: Steven Rostedt
[Jaegeuk: combine and modify the tracepoint structures]
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/file.c | 7 +-
fs/f2fs/inode.c | 13 ++-
fs/f2fs/namei.c | 3 +
fs/f2fs/sup
add tracepoints for tracing the truncate operations
like truncate node/data blocks, f2fs_truncate etc.
Tracepoints are added at entry and exit of operation
to trace the success & failure of operation.
Signed-off-by: Namjae Jeon
Signed-off-by: Pankaj Kumar
Acked-by: Steven Rostedt
[Jae
Add tracepoints for page i/o operations and block allocation
tracing during page read operation.
Signed-off-by: Namjae Jeon
Signed-off-by: Pankaj Kumar
Acked-by: Steven Rostedt
[Jaegeuk: combine and modify the tracepoint structures]
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/data.c
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