From: Robin Hsu
Speed up fsck in auto-fix mode by splitting
build_segment_manager() into two disjoint parts:
early_build_segment_manager(), and
late_build_segment_manager(),
where in some cases (when !need_fsync_data_record(), or cannot
find_fsync_inode()), late_build_segment_mana
On Tue, Jul 07, 2020 at 08:05:50PM -0700, Daniel Rosenberg wrote:
> +/**
> + * generic_ci_d_compare - generic d_compare implementation for casefolding
> filesystems
> + * @dentry: dentry whose name we are checking against
> + * @len: len of name of dentry
> + * @str: str pointer to name o
From: Daeho Jeong
Added a new ioctl to send discard commands or/and zero out
to selected data area of a regular file for security reason.
Signed-off-by: Daeho Jeong
Reviewed-by: Chao Yu
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/f2fs.h | 15
fs/f2fs/file.c | 181 +++
This adds general supporting functions for filesystems that use
utf8 casefolding. It provides standard dentry_operations and adds the
necessary structures in struct super_block to allow this standardization.
The new dentry operations are functionally equivalent to the existing
operations in ext4 a
This lays the ground work for enabling casefolding and encryption at the
same time for ext4 and f2fs. A future set of patches will enable that
functionality.
These unify the highly similar dentry_operations that ext4 and f2fs both
use for casefolding. In addition, they improve d_hash by not requir
This switches ext4 over to the generic support provided in
the previous patch.
Since casefolded dentries behave the same in ext4 and f2fs, we decrease
the maintenance burden by unifying them, and any optimizations will
immediately apply to both.
Signed-off-by: Daniel Rosenberg
Reviewed-by: Eric
This switches f2fs over to the generic support provided in
the previous patch.
Since casefolded dentries behave the same in ext4 and f2fs, we decrease
the maintenance burden by unifying them, and any optimizations will
immediately apply to both.
Signed-off-by: Daniel Rosenberg
Reviewed-by: Eric
This adds a case insensitive hash function to allow taking the hash
without needing to allocate a casefolded copy of the string.
The existing d_hash implementations for casefolding allocate memory
within rcu-walk, by avoiding it we can be more efficient and avoid
worrying about a failed allocation
On 2020/7/8 2:23, Aravind Ramesh wrote:
> Thanks for review Chao Yu.
> Please find my response inline.
> I will re-send a V2 after incorporating your comments.
>
> Regards,
> Aravind
>
>> -Original Message-
>> From: Chao Yu
>> Sent: Tuesday, July 7, 2020 5:49 PM
>> To: Aravind Ramesh ; j
Hi Daeho,
On Thu, Jun 18, 2020 at 09:51:52PM +0900, Daeho Jeong wrote:
> +static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
> +{
> + struct inode *inode = file_inode(filp);
> + struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
> + struct address_space *mapping = inode->i_m
On Tue, Jul 07, 2020 at 04:31:23AM -0700, Daniel Rosenberg wrote:
> This switches ext4 over to the generic support provided in
> the previous patch.
>
> Since casefolded dentries behave the same in ext4 and f2fs, we decrease
> the maintenance burden by unifying them, and any optimizations will
> i
On Tue, Jul 07, 2020 at 04:31:22AM -0700, Daniel Rosenberg wrote:
> This switches f2fs over to the generic support provided in
> the previous patch.
>
> Since casefolded dentries behave the same in ext4 and f2fs, we decrease
> the maintenance burden by unifying them, and any optimizations will
> i
On Tue, Jul 07, 2020 at 04:31:20AM -0700, Daniel Rosenberg wrote:
> This adds a case insensitive hash function to allow taking the hash
> without needing to allocate a casefolded copy of the string.
>
> The existing d_hash implementations for casefolding allocates memory
> within rcu-walk, by avoi
On Tue, Jul 07, 2020 at 04:31:21AM -0700, Daniel Rosenberg wrote:
> +/*
> + * Determine if the name of a dentry should be casefolded. It does not make
> + * sense to casefold the no-key token of an encrypted filename.
> + *
> + * Return: if names will need casefolding
> + */
> +static bool needs_ca
Thanks for review Chao Yu.
Please find my response inline.
I will re-send a V2 after incorporating your comments.
Regards,
Aravind
> -Original Message-
> From: Chao Yu
> Sent: Tuesday, July 7, 2020 5:49 PM
> To: Aravind Ramesh ; jaeg...@kernel.org; linux-
> fsde...@vger.kernel.org; linux
On Thu, Jul 02, 2020 at 01:56:03AM +, Satya Tangirala wrote:
> This patch series adds support for Inline Encryption to fscrypt, f2fs
> and ext4. It builds on the inline encryption support now present in
> the block layer, and has been rebased on v5.8-rc3. Note that Patches 1 and
> 2 can be appl
Daniel Rosenberg writes:
> This adds a case insensitive hash function to allow taking the hash
> without needing to allocate a casefolded copy of the string.
>
> The existing d_hash implementations for casefolding allocates memory
> within rcu-walk, by avoiding it we can be more efficient and avo
On 2020/7/2 23:54, Aravind Ramesh wrote:
> NVMe Zoned Namespace devices can have zone-capacity less than zone-size.
> Zone-capacity indicates the maximum number of sectors that are usable in
> a zone beginning from the first sector of the zone. This makes the sectors
> sectors after the zone-capaci
This adds general supporting functions for filesystems that use
utf8 casefolding. It provides standard dentry_operations and adds the
necessary structures in struct super_block to allow this standardization.
The new dentry operations are functionally equivalent to the existing
operations in ext4 a
This adds a case insensitive hash function to allow taking the hash
without needing to allocate a casefolded copy of the string.
The existing d_hash implementations for casefolding allocates memory
within rcu-walk, by avoiding it we can be more efficient and avoid
worrying about a failed allocatio
This lays the ground work for enabling casefolding and encryption at the
same time for ext4 and f2fs. A future set of patches will enable that
functionality.
These unify the highly similar dentry_operations that ext4 and f2fs both
use for casefolding. In addition, they improve d_hash by not requir
This switches f2fs over to the generic support provided in
the previous patch.
Since casefolded dentries behave the same in ext4 and f2fs, we decrease
the maintenance burden by unifying them, and any optimizations will
immediately apply to both.
Signed-off-by: Daniel Rosenberg
---
fs/f2fs/dir.c
This switches ext4 over to the generic support provided in
the previous patch.
Since casefolded dentries behave the same in ext4 and f2fs, we decrease
the maintenance burden by unifying them, and any optimizations will
immediately apply to both.
Signed-off-by: Daniel Rosenberg
---
fs/ext4/dir.c
then, we can add specified entry into rb-tree with 64-bits segment time
as key.
Signed-off-by: Chao Yu
---
fs/f2fs/extent_cache.c | 37 +++--
fs/f2fs/f2fs.h | 15 ---
fs/f2fs/segment.c | 4 ++--
3 files changed, 49 insertions(+), 7 deleti
Previous implementation of aligned pinfile allocation will:
- allocate new segment on cold data log no matter whether last used
segment is partially used or not, it makes IOs more random;
- force concurrent cold data/GCed IO going into warm data area, it
can make a bad effect on hot/cold data separ
This patch series introduce a new garbage collection algorithm named ATGC
(Age Threshold based Garbage Collection) in order to enhance efficiency and
effect of background garbage collection.
ATGC algorithm tries to fliter few oldest candidates according to defined
age threshold, it selects source
Previously, once we update one block in segment, we will update mtime of
segment to last time, making aged segment becoming freshest, result in
that GC with cost benefit algorithm missing such segment, So this patch
changes to record mtime as average block updating time instead of last
updating tim
There are several issues in current background GC algorithm:
- valid blocks is one of key factors during cost overhead calculation,
so if segment has less valid block, however even its age is young or
it locates hot segment, CB algorithm will still choose the segment as
victim, it's not appropriate
Don't let f2fs inner GC ruins original aging degree of segment.
Signed-off-by: Chao Yu
---
fs/f2fs/data.c| 2 +-
fs/f2fs/f2fs.h| 5 +++--
fs/f2fs/gc.c | 4 ++--
fs/f2fs/segment.c | 55 ---
4 files changed, 49 insertions(+), 17 deletions
On Tue, Jun 23, 2020 at 10:43 PM Gabriel Krisman Bertazi
wrote:
>
> Daniel Rosenberg writes:
>
> > -
> > const struct dentry_operations ext4_dentry_ops = {
> > - .d_hash = ext4_d_hash,
> > - .d_compare = ext4_d_compare,
> > + .d_hash = generic_ci_d_hash,
> > + .d_compare = generi
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