On Friday, September 02, 2016 03:40:05 PM Josef Bacik wrote:
Please find my comment inlined below,
> In order to more efficiently support sub-page blocksizes we need to stop
> allocating pages from pagecache for our metadata. Instead switch to using the
> account_metadata* counters for making su
causes a NULL pointer
dereference.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ctree.h | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index ee6956c..33ce069 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2882,8 +2882,1
executed generic/127 on a
filesystem created using "fragment-free-space-tree.py" that you had provided
sometime ago. I did not notice any regressions during the test runs.
Tested-by: Chandan Rajendra
>
> I'm working on the btrfs-progs follow up, but these patches are safe
>
d by a future commit that gets
compression to work in subpage-blocksize scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 16 +++
fs/btrfs/extent_io.h | 5 ++--
fs/btrfs/inode.c | 78 +---
3 files changed, 57 insertions(+),
tatus in the
case of blocksize < PAGE_SIZE. We will continue to use PG_Uptodate flag
to track uptodate status for blocksize == PAGE_SIZE scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 61 +++-
fs/btrfs/extent_io.h | 2 +-
fs
check to make sure that the delalloc range starts from within the file range
mapped by the page.
Reviewed-by: Josef Bacik
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/exte
hole() has been fixed to
check for the presence of BLK_STATE_UPTODATE flags for blocks in
pages which partially map the file range being punched.
Changes from V11:
1. Addressed the review comments provided by Liu Bo for version V11.
2. Fixed file defragmentation code to work in subpagesize
In subpage-blocksize scenario, extent allocations for only some of the
dirty blocks of a page can succeed, while allocation for rest of the
blocks can fail. This patch allows I/O against such pages to be
submitted.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 27
The default bitmap length computation in free space tree sanity tests
assumes PAGE_SIZE as the sectorsize. This commit fixes this by using a
variable sectorsize to calculate BITMAP_RANGE.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/tests/free-space-tree-tests.c | 79
to be
able to mount and use filesystems with 2048 bytes as the sectorsize.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 21 -
fs/btrfs/disk-io.h | 2 +-
fs/btrfs/extent-tree.c | 4 ++--
fs/btrfs/extent_io.c | 3 +--
fs/btrfs/extent_io.h | 2 +-
fs
ed-off-by: Chandan Rajendra
---
fs/btrfs/ctree.h | 6 +-
fs/btrfs/disk-io.c | 27 +++---
fs/btrfs/extent_io.c | 204 +--
fs/btrfs/extent_io.h | 8 +-
fs/btrfs/tests/extent-io-tests.c | 4 +-
5 files cha
ock size < page size".
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 10 --
1 file changed, 10 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4077fc1..cf13029 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3321,21 +33
In case of subpage-blocksize, the file blocks to be punched may map only
part of a page. For file blocks inside such pages, we need to check for
the presence of BLK_STATE_UPTODATE flag.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file.c | 89
In subpage-blocksize scenario a page can have more than one block. So in
addition to PagePrivate2 flag, we would have to track the I/O status of
each block of a page to reliably mark the ordered extent as complete.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c| 19 +--
fs/btrfs
page->private or by the PG_uptodate flag.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 114 +++---
fs/btrfs/file.c | 16 +++
fs/btrfs/inode.c | 69 --
fs/btrfs/relocation.c | 3 ++
4 fi
This commit executes sanity tests for all valid sectorsize/nodesize
combinations.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/tests/btrfs-tests.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index dca90d6
atch gets the io_lock only when the
last block of the bio_vec is being processed.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 299 +--
fs/btrfs/extent_io.h | 76 -
fs/btrfs/inode.c | 13 +--
3 files changed, 320 i
This commit gets file defragmentation code to work in subpage-blocksize
scenario. It does this by keeping track of page offsets that mark block
boundaries and passing them as arguments to the functions that implement
the defragmentation logic.
Signed-off-by: Chandan Rajendra
---
fs/btrfs
We now track block uptodate status using a page's PG_Uptodate
flag. Hence this commit removes the now unused
extent_io_tree->track_uptodate member.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 1 -
fs/btrfs/extent_io.h | 1 -
fs/btrfs/inode.c | 2 --
3 files ch
hen we
move to the next bvec of the bio.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file-item.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index d0d571c..8fc09c1 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-ite
mand.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 8 +++-
fs/btrfs/super.c | 19 +++
2 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0fdc0a0..862d97b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -322,6 +
The file extent relocation code currently assumes blocksize to be same
as PAGE_SIZE. This commit adds code to support subpage blocksize
scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/relocation.c | 90 ---
1 file changed, 71 insertions
such dirty blocks to be flushed to disk
before performing the clone operation.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 16
1 file changed, 16 insertions(+)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index cf13029..0fdc0a0 100644
--- a/fs/btrfs/ioctl.c
+++ b
On Wednesday, January 3, 2018 9:59:24 PM IST Josef Bacik wrote:
> On Wed, Jan 03, 2018 at 05:26:03PM +0100, Jan Kara wrote:
>
> Oh ok well if that's the case then I'll fix this up to be a ratio, test
> everything, and send it along probably early next week. Thanks,
>
Hi Josef,
Did you get a c
On Monday, January 29, 2018 2:36:15 PM IST Chandan Rajendra wrote:
> On Wednesday, January 3, 2018 9:59:24 PM IST Josef Bacik wrote:
> > On Wed, Jan 03, 2018 at 05:26:03PM +0100, Jan Kara wrote:
>
> >
> > Oh ok well if that's the case then I'll fix this up to be
When executing btrfs/126 test on kdave/for-next branch on a ppc64 guest, I
noticed the following call trace.
[ 77.335887] [ cut here ]
[ 77.336115] WARNING: CPU: 0 PID: 8325 at
/root/repos/linux/fs/btrfs/qgroup.c:2443 .btrfs_qgroup_free_refroot+0x188/0x220
[ 77.33630
On Tuesday, November 29, 2016 03:55:53 PM Qu Wenruo wrote:
> At 11/29/2016 02:36 PM, Chandan Rajendra wrote:
> > When executing btrfs/126 test on kdave/for-next branch on a ppc64 guest, I
> > noticed the following call trace.
> >
> > [ 77.335
ed-off-by: Chandan Rajendra
---
utils.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/utils.c b/utils.c
index d0189ad..7b17b20 100644
--- a/utils.c
+++ b/utils.c
@@ -562,14 +562,17 @@ static int insert_temp_chunk_item(int fd, struct
extent_buffer *buf,
*/
On Tuesday, November 29, 2016 04:41:41 PM Qu Wenruo wrote:
>
> At 11/29/2016 04:21 PM, Chandan Rajendra wrote:
> > On Tuesday, November 29, 2016 03:55:53 PM Qu Wenruo wrote:
> >> At 11/29/2016 02:36 PM, Chandan Rajendra wrote:
> >>> When executing btrfs/126 t
ed-off-by: Chandan Rajendra
---
utils.c | 8 ++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/utils.c b/utils.c
index d0189ad..74dde1e 100644
--- a/utils.c
+++ b/utils.c
@@ -562,14 +562,18 @@ static int insert_temp_chunk_item(int fd, struct
extent_buffer *buf,
*/
underlying
filesystem.
Signed-off-by: Chandan Rajendra
---
convert/main.c | 23 ---
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/convert/main.c b/convert/main.c
index 1148a36..fd6f77b 100644
--- a/convert/main.c
+++ b/convert/main.c
@@ -1360,7 +1360,7 @@ err
.
Signed-off-by: Chandan Rajendra
---
convert/main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/convert/main.c b/convert/main.c
index 4b4cea4..1148a36 100644
--- a/convert/main.c
+++ b/convert/main.c
@@ -1525,6 +1525,9 @@ static int __ext2_add_one_block(ext2_filsys fs, char
*bitmap
On Friday, December 02, 2016 10:03:06 AM Qu Wenruo wrote:
> Introduce a new parameter, struct extent_changeset for
> btrfs_qgroup_reserved_data() and its callers.
>
> Such extent_changeset was used in btrfs_qgroup_reserve_data() to record
> which range it reserved in current reserve, so it can fre
On Friday, December 09, 2016 09:03:57 AM Qu Wenruo wrote:
> Hi Chandan,
>
> Thanks for the patch.
>
> At 12/08/2016 09:56 PM, Chandan Rajendra wrote:
> > When looping across data block bitmap, __ext2_add_one_block() may add
> > blocks which do not exist on the u
On Friday, December 09, 2016 09:09:29 AM Qu Wenruo wrote:
>
> At 12/08/2016 09:56 PM, Chandan Rajendra wrote:
> > migrate_super_block() uses sectorsize to refer to the size of the
> > superblock. Hence on 64k sectorsize filesystems, it ends up computing
> > checksum beyon
served space underflow.
The changes look good to me.
Reviewed-by: Chandan Rajendra
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ee
> data ranges reserved by previous btrfs_qgroup_reserve_data().
> So in above case, Task B will try to free 0 byte, so no underflow.
>
The changes look good to me. Also, I did not notice any regressions when
executing fstests with the patch applied.
Reviewed-by: Chandan Rajendra
On Thursday, December 15, 2016 05:03:30 PM Qu Wenruo wrote:
> Although commit 9c4b820412746b3 tried to make the rollback condition
> less restrict, to co-operate with new rollback behavior, it's still too
> restrict.
>
> If btrfs allocates a new data chunk, it's highly possible that the new
> chun
convert and old convert.
>(To be more specific, old convert is just a subset of more universal
> new convert behavior)
>
>No extra work is needed any more, and we can even open the btrfs RO.
Thanks for fixing this. The patchset works fine on ppc64 and x86_64.
Tested-by: Chandan
llows the Direct I/O code to
complete I/O on all the ordered extents it creates.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/inode.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5ca88f0..f796037 100644
--- a/fs/btrfs/inode.c
+++ b
On Friday, December 23, 2016 03:00:18 PM Chandan Rajendra wrote:
> The following deadlock is seen when executing generic/113 test,
>
>
> -+
>
On Friday, December 23, 2016 03:57:40 PM Chandan Rajendra wrote:
> On Friday, December 23, 2016 03:00:18 PM Chandan Rajendra wrote:
> > The following deadlock is seen when executing generic
On Friday, December 23, 2016 04:18:00 PM Liu Bo wrote:
> On Fri, Dec 23, 2016 at 05:27:55PM +0530, Chandan Rajendra wrote:
> > On Friday, December 23, 2016 03:57:40 PM Chandan Rajendra wrote:
> > > On Friday, December 23, 2016 03:00:18 PM Chandan Rajendra wrote:
> > >
To get the test to work on non-4k block sized filesystems, this commit
obtains the block size of the Btrfs filesystem from $TEST_DIR.
Signed-off-by: Chandan Rajendra
---
tests/btrfs/012 | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tests/btrfs/012 b/tests/btrfs/012
ed_range(inode, page_start, page_end);
> + ordered = btrfs_lookup_ordered_range(inode, page_start, PAGE_SIZE);
> if (ordered) {
> unlock_extent_cached(io_tree, page_start, page_end,
> &cached_state, GFP_NOFS);
>
Thanks
On Thursday 11 Feb 2016 23:17:38 Chandan Rajendra wrote:
> Btrfs assumes block size to be the same as the machine's page
> size. This would mean that a Btrfs instance created on a 4k page size
> machine (e.g. x86) will not be mountable on machines with larger page
> sizes (e
0, btrfs/065, btrfs/067
and btrfs/068) where __btrfs_stress_subvolume() is used. I am planning
to fix them up once we arrive at a solution to which everybody agrees.
Signed-off-by: Chandan Rajendra
---
common/rc | 9 +
tests/btrfs/066 | 27 +++
2 files cha
On Thursday 17 Mar 2016 15:23:39 Eryu Guan wrote:
> A named pipe seems too heavy and complicated to me. How about breaking
> out the loop in _btrfs_stress_subvolume on the existence of some file?
> e.g.
>
> _btrfs_stress_subvolume():
> ...
> local stop_file=$5
> while [ ! -e $sto
_stress_subvolume() i.e. btrfs/060, btrfs/065,
btrfs/067 & btrfs/068.
Suggested-by: Eryu Guan
Signed-off-by: Chandan Rajendra
---
Changelog:
V1->V2: Instead of named pipes, Use a file to let 'subvolume stress' task know
that it should break from the while loop.
common/rc | 3
On Monday 21 Mar 2016 20:07:06 Eryu Guan wrote:
> > diff --git a/common/rc b/common/rc
> > index 16f5a43..7d971ea 100644
> > --- a/common/rc
> > +++ b/common/rc
> > @@ -3280,9 +3280,10 @@ _btrfs_stress_subvolume()
> >
> > local btrfs_mnt=$2
> > local subvol_name=$3
> > local subvol_mnt
_stress_subvolume() i.e. btrfs/060, btrfs/065,
btrfs/067 & btrfs/068.
Suggested-by: Eryu Guan
Reviewed-by: Eryu Guan
Signed-off-by: Chandan Rajendra
---
Changelog:
V2->V3: Use the correct argument value as the 'stop file' name in
_btrfs_stress_subvolume(). I had forgotten to pull the
e our bio.
>
Chris, Thanks for finding the issue and fixing it. From now onwards, I will
make sure that I have CONFIG_DEBUG_PAGEALLOC enabled on my test kernel build
config.
Reviewed-by: Chandan Rajendra
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chandan
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On Tuesday 22 Mar 2016 12:04:23 David Sterba wrote:
> On Thu, Feb 11, 2016 at 11:17:38PM +0530, Chandan Rajendra wrote:
> > this patchset temporarily disables the commit
> > f82c458a2c3ffb94b431fc6ad791a79df1b3713e.
> >
> > The commits for the Btrfs kernel modul
On Thursday 31 Mar 2016 15:59:11 David Sterba wrote:
> On Thu, Mar 31, 2016 at 11:31:06AM +0200, David Sterba wrote:
> > On Tue, Mar 22, 2016 at 06:50:32PM +0530, Chandan Rajendra wrote:
> > > On Tuesday 22 Mar 2016 12:04:23 David Sterba wrote:
> > > > On Thu, Fe
d hence when passing it as an argument to
btrfs_delalloc_release_space(), we may end up releasing larger delalloc
space than we originally had reserved.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/file.c b/f
pages which partially map the file range being punched.
Changes from V11:
1. Addressed the review comments provided by Liu Bo for version V11.
2. Fixed file defragmentation code to work in subpagesize-blocksize
scenario.
3. Many "hard to reproduce" bugs were fixed.
Chandan Rajendr
t extent_buffer' to
'struct extent_buffer_head'
Also, this patch moves EXTENT_BUFFER_TREE_REF, EXTENT_BUFFER_DUMMY and
EXTENT_BUFFER_IN_TREE flags from extent_buffer->ebflags to
extent_buffer_head->bflags.
Reviewed-by: Liu Bo
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ct
atch gets the io_lock only when the
last block of the bio_vec is being processed.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 321 +--
fs/btrfs/extent_io.h | 71 +++-
fs/btrfs/inode.c | 13 +--
3 files changed, 280 in
check to make sure that the delalloc range starts from within the file range
mapped by the page.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 9b6c8e0..70d32ef
->private.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 129 +-
fs/btrfs/file.c | 16 +++
fs/btrfs/inode.c | 64 -
fs/btrfs/relocation.c | 3 ++
4 files changed, 125 insertions(+), 87 deleti
In subpage-blocksize scenario a page can have more than one block. So in
addition to PagePrivate2 flag, we would have to track the I/O status of
each block of a page to reliably mark the ordered extent as complete.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c| 19 +--
fs/btrfs
The file extent relocation code currently assumes blocksize to be same
as PAGE_CACHE_SIZE. This commit adds code to support subpage blocksize
scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 10 +++
fs/btrfs/relocation.c | 73
page.
Hence this patch adds a new flag (i.e. EXTENT_BUFFER_HEAD_WRITEBACK) and
corresponding code to track the writeback status of the page and to
prevent writes to any of the extent buffers mapped to the page while
writeback is going on.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ct
d by a future commit that gets
compression to work in subpage-blocksize scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 16 ++
fs/btrfs/extent_io.h | 5 ++--
fs/btrfs/inode.c | 84 ++--
3 files changed, 61 insertions(+),
ock size < page size".
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 10 --
1 file changed, 10 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index bf79dbc..4ff7cf8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3256,21 +32
In subpage-blocksize scenario, extent allocations for only some of the
dirty blocks of a page can succeed, while allocation for rest of the
blocks can fail. This patch allows I/O against such pages to be
submitted.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 27
This commit gets file defragmentation code to work in subpage-blocksize
scenario. It does this by keeping track of page offsets that mark block
boundaries and passing them as arguments to the functions that implement
the defragmentation logic.
Signed-off-by: Chandan Rajendra
---
fs/btrfs
In the case of subpage-blocksize, this patch makes it possible to read
only a single metadata block from the disk instead of all the metadata
blocks that map into a page.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 52 +
fs/btrfs/disk-io.h | 3 ++
fs
such dirty blocks to be flushed to disk
before performing the clone operation.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 16
1 file changed, 16 insertions(+)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4ff7cf8..3038589 100644
--- a/fs/btrfs/ioctl.c
+++ b
This patch allows mounting filesystems with sectorsize smaller than the
PAGE_SIZE.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 10 +++---
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 708b8cb..1db0063 100644
--- a/fs
For the subpage-blocksize scenario, this patch adds the ability to write
a single extent buffer to the disk.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 32 +++---
fs/btrfs/extent_io.c | 277 +--
2 files changed, 242 insertions
In case of subpage-blocksize, the file blocks to be punched may map only
part of a page. For file blocks inside such pages, we need to check for
the presence of BLK_STATE_UPTODATE flag.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file.c | 66
hen we
move to the next bvec of the bio.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file-item.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 7a7d6e2..472b069 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-ite
The patch "Btrfs: subpage-blocksize: Prevent writes to an extent buffer
when PG_writeback flag is set" requires btrfs_try_tree_write_lock() to
be a true try lock w.r.t to both spinning and blocking locks. During
2015's Vault Conference Btrfs meetup, Chris Mason had suggested that he
will write up a
Hello all,
I accidentally sent out patches from the incorrect branch. Please ignore this
patchset.
--
chandan
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The patch "Btrfs: subpage-blocksize: Prevent writes to an extent buffer
when PG_writeback flag is set" requires btrfs_try_tree_write_lock() to
be a true try lock w.r.t to both spinning and blocking locks. During
2015's Vault Conference Btrfs meetup, Chris Mason had suggested that he
will write up a
hen we
move to the next bvec of the bio.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file-item.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 7a7d6e2..472b069 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-ite
This patch allows mounting filesystems with sectorsize smaller than the
PAGE_SIZE.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 10 +++---
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 708b8cb..1db0063 100644
--- a/fs
page.
Hence this patch adds a new flag (i.e. EXTENT_BUFFER_HEAD_WRITEBACK) and
corresponding code to track the writeback status of the page and to
prevent writes to any of the extent buffers mapped to the page while
writeback is going on.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ct
In subpage-blocksize scenario, extent allocations for only some of the
dirty blocks of a page can succeed, while allocation for rest of the
blocks can fail. This patch allows I/O against such pages to be
submitted.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 27
atch gets the io_lock only when the
last block of the bio_vec is being processed.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 321 +--
fs/btrfs/extent_io.h | 71 +++-
fs/btrfs/inode.c | 13 +--
3 files changed, 280 in
d by a future commit that gets
compression to work in subpage-blocksize scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 16 ++
fs/btrfs/extent_io.h | 5 ++--
fs/btrfs/inode.c | 84 ++--
3 files changed, 61 insertions(+),
ressed the review comments provided by Liu Bo for version V11.
2. Fixed file defragmentation code to work in subpagesize-blocksize
scenario.
3. Many "hard to reproduce" bugs were fixed.
Chandan Rajendra (18):
Btrfs: subpage-blocksize: Fix whole page read.
Btrfs: subpage-blocksize:
In subpage-blocksize scenario a page can have more than one block. So in
addition to PagePrivate2 flag, we would have to track the I/O status of
each block of a page to reliably mark the ordered extent as complete.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c| 19 +--
fs/btrfs
For the subpage-blocksize scenario, this patch adds the ability to write
a single extent buffer to the disk.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 32 +++---
fs/btrfs/extent_io.c | 277 +--
2 files changed, 242 insertions
ock size < page size".
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 10 --
1 file changed, 10 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index bf79dbc..4ff7cf8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3256,21 +32
The file extent relocation code currently assumes blocksize to be same
as PAGE_SIZE. This commit adds code to support subpage blocksize
scenario.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/relocation.c | 73 +--
1 file changed, 48 insertions
->private.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 129 +-
fs/btrfs/file.c | 16 +++
fs/btrfs/inode.c | 64 -
fs/btrfs/relocation.c | 3 ++
4 files changed, 125 insertions(+), 87 deleti
In the case of subpage-blocksize, this patch makes it possible to read
only a single metadata block from the disk instead of all the metadata
blocks that map into a page.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/disk-io.c | 52 +
fs/btrfs/disk-io.h | 3 ++
fs
check to make sure that the delalloc range starts from within the file range
mapped by the page.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 9b6c8e0..70d32ef
such dirty blocks to be flushed to disk
before performing the clone operation.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ioctl.c | 16
1 file changed, 16 insertions(+)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4ff7cf8..7d39cba 100644
--- a/fs/btrfs/ioctl.c
+++ b
This commit gets file defragmentation code to work in subpage-blocksize
scenario. It does this by keeping track of page offsets that mark block
boundaries and passing them as arguments to the functions that implement
the defragmentation logic.
Signed-off-by: Chandan Rajendra
---
fs/btrfs
t extent_buffer' to
'struct extent_buffer_head'
Also, this patch moves EXTENT_BUFFER_TREE_REF, EXTENT_BUFFER_DUMMY and
EXTENT_BUFFER_IN_TREE flags from extent_buffer->ebflags to
extent_buffer_head->bflags.
Reviewed-by: Liu Bo
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ct
In case of subpage-blocksize, the file blocks to be punched may map only
part of a page. For file blocks inside such pages, we need to check for
the presence of BLK_STATE_UPTODATE flag.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file.c | 66
In case of subpage-blocksize, the file blocks to be punched may map only
part of a page. For file blocks inside such pages, we need to check for
the presence of BLK_STATE_UPTODATE flag.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file.c | 66
check to make sure that the delalloc range starts from within the file range
mapped by the page.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/extent_io.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 9b6c8e0..790ad09
In case of subpage-blocksize, the file blocks to be punched may map only
part of a page. For file blocks inside such pages, we need to check for
the presence of BLK_STATE_UPTODATE flag.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/file.c | 66
t extent_buffer' to
'struct extent_buffer_head'
Also, this patch moves EXTENT_BUFFER_TREE_REF, EXTENT_BUFFER_DUMMY and
EXTENT_BUFFER_IN_TREE flags from extent_buffer->ebflags to
extent_buffer_head->bflags.
Reviewed-by: Liu Bo
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ct
page.
Hence this patch adds a new flag (i.e. EXTENT_BUFFER_HEAD_WRITEBACK) and
corresponding code to track the writeback status of the page and to
prevent writes to any of the extent buffers mapped to the page while
writeback is going on.
Signed-off-by: Chandan Rajendra
---
fs/btrfs/ct
On Thursday 14 Apr 2016 19:08:09 Chandan Rajendra wrote:
> Btrfs assumes block size to be the same as the machine's page
> size. This would mean that a Btrfs instance created on a 4k page size
> machine (e.g. x86) will not be mountable on machines with larger page
> sizes (e
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