Thanks!
Regards,
Wang Sheng-Hui
-- Original --
From: "Bjorn Helgaas";;
Date: Sat, Nov 12, 2016 04:51 AM
To: "Wang Sheng-Hui";
Cc: "yu.zhao"; "jbarnes";
"alex.williamson"; "bhelgaas";
"linux-p
This is a cleanup that moves PCI configuration space size
macros (PCI_CFG_SPACE_SIZE and PCI_CFG_SPACE_EXP_SIZE) from
drivers/pci/pci.h to include/uapi/linux/pci_regs.h
So that the macros can be used by more drivers and eliminate
potential duplicate definition.
Signed-off-by: Wang Sheng-Hui
Currently, we have more filesystems supporting fallocate, e.g
ext4/btrfs. Remove the outdated comment for madvise_remove.
Signed-off-by: Wang Sheng-Hui
---
mm/madvise.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/mm/madvise.c b/mm/madvise.c
index a402f8f..0938b30 100644
--- a/mm
Should check the return value of kzalloc first to avoid the null pointer.
Then can dereference the non-null pointer to access the fields of struct
resource.
Signed-off-by: Wang Sheng-Hui
---
arch/tile/kernel/setup.c |4
1 file changed, 4 insertions(+)
diff --git a/arch/tile/kernel
io_ctl_map_page is called by many functions in free-space-cache.
In most scenarios, the ->cur is not null, e.g. io_ctl_add_entry.
I think we'd better remove the warn_on here.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/free-space-cache.c |1 -
1 files changed, 0 insertions(+), 1 d
In csum_dirty_buffer, we first get eb from page->private.
Then we check if the page is the first page of eb. Later
we check it again. Remove the repeated check here.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/disk-io.c |8 +++-
1 files changed, 3 insertions(+), 5 deletions(-)
d
On 2012年09月25日 00:17, David Sterba wrote:
> On Mon, Sep 24, 2012 at 12:38:07PM +0800, Wang Sheng-Hui wrote:
>> Check range early to avoid further check/compute in case
>> of range error.
>>
>> Signed-off-by: Wang Sheng-Hui
>> ---
>> fs/btrfs/extent_i
Check range early to avoid further check/compute in case
of range error.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/extent_io.c | 16
1 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 4c87847..9250cf5 100644
--- a
The action has been merged into struct btrfs_delayed_ref_node,
and no struct btrfs_delayed_ref is available now.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/delayed-ref.h |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
To check the duplicated super blocks, use BTRFS_SUPER_MIRROR_MAX
as the loops limit.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/disk-io.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 22e98e0..a431144 100644
--- a/fs
The function scans @delaying_queue and stops at the first inode
whose dirtied_when is after *work->older_than_this. So the expired
ones being moved are those before *work->older_than_this. Correct
the comment here.
Signed-off-by: Wang Sheng-Hui
---
fs/fs-writeback.c |2 +-
1 files c
On 2012年09月06日 18:09, David Sterba wrote:
> On Thu, Sep 06, 2012 at 02:40:41PM +0800, Wang Sheng-Hui wrote:
>> The memory allocation failure is BUG_ON in add_excluded_extent (following
>> the code path) and btrfs_rmap_block. No need to BUG_ON -ENOMEM inside
>> exclude_super_st
The memory allocation failure will be catched in set_extent_bits.
Always return 0 is useless for its callers.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/extent-tree.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index
The memory allocation failure is BUG_ON in add_excluded_extent
(following the code path). No need to BUG_ON -ENOMEM inside
btrfs_alloc_logged_file_extent.
Signed-off-by: Wang Sheng-Hui
---
fs/btrfs/extent-tree.c |6 ++
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs
The memory allocation failure is BUG_ON in add_excluded_extent (following
the code path) and btrfs_rmap_block. No need to BUG_ON -ENOMEM inside
exclude_super_stripes itself.
Its return value is always 0, and useless for its callers. Set it as void
instead 0-returned.
Signed-off-by: Wang Sheng
The count records the PAs freed, not left.
Change the debug description.
Signed-off-by: Wang Sheng-Hui
---
fs/ext4/mballoc.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 8eae947..f83b145 100644
--- a/fs/ext4/mballoc.c
In the check code above, if orig_start != donor_start, we would
return -EINVAL. So here, orig_start should be equal with donor_start.
Remove the redundant check here.
Signed-off-by: Wang Sheng-Hui
---
fs/ext4/move_extent.c |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a
Put the sign '/' to the right position.
Signed-off-by: Wang Sheng-Hui
---
fs/ext4/extents.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 7f6fb48..f394e0f 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
In function __generic_block_fiemap, local var past_eof is declared
as bool, so use 'true' instead of number 1 here.
Signed-off-by: Wang Sheng-Hui
---
fs/ioctl.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 29167be..e42abb0 10
; On Fri, Jul 6, 2012 at 2:26 PM, Wang Sheng-Hui wrote:
>> The left and right extents merge is done by
>> ext4_ext_try_to_merge. No specific left/right
>> fun calls any more.
>>
>> Signed-off-by: Wang Sheng-Hui
>> ---
>> fs/ext4/extents.c |4 +---
>&
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