On Fri, 21 Sep 2012 17:24:44 +0200, David Sterba wrote:
On Fri, Sep 21, 2012 at 05:07:46PM +0800, Miao Xie wrote:
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3335,6 +3335,24 @@ static long btrfs_ioctl_balance(struct file *file,
void __user *arg)
goto
On fri, 14 Sep 2012 21:05:01 +0800, Liu Bo wrote:
On 09/14/2012 09:01 PM, Liu Bo wrote:
On 09/14/2012 08:41 PM, Josef Bacik wrote:
On Fri, Sep 14, 2012 at 02:58:04AM -0600, Liu Bo wrote:
In some workloads we have nested joining transaction operations,
eg.
run_delalloc_nocow
On Fri, Sep 21, 2012 at 05:07:46PM +0800, Miao Xie wrote:
div_factor{_fine} has been implemented for two times, and these two functions
are very similar, so cleanup the reduplicate implement and drop the original
div_factor(), and then rename div_factor_fine() to div_factor(). So the
divisor
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
NOTE:
The patchset is currently post out mainly to make sure
it is going in the correct direction and hope to get some
helpful comments from other guys.
For more infomation, please check hot_tracking.txt in Documentation
TODO List:
1.) Need to do
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
One root structure hot_info is defined, is hooked
up in super_block, and will be used to hold rb trees
root, hash list root and some other information, etc.
Adds hot_inode_tree struct to keep track of
frequently accessed files, and be keyed by
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
FS_IOC_GET_HEAT_INFO: return a struct containing the various
metrics collected in btrfs_freq_data structs, and also return a
calculated data temperature based on those metrics. Optionally, retrieve
the temperature from the hot data hash list instead of
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Fork and run one kernel kthread to calculate
that temperature based on some metrics kept
in custom frequency data structs, and store
the info in the hash table.
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
fs/hot_tracking.c|
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Add a /sys/kernel/debug/hot_track/device_name/ directory for each
volume that contains two files. The first, `inode_data', contains the
heat information for inodes that have been brought into the hot data map
structures. The second, `range_data',
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Miscellaneous features that implement hot data tracking
and generally make the hot data functions a bit more friendly.
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
fs/direct-io.c | 10 ++
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Adds a hash table structure which contains
a lot of hash list and is used to efficiently
look up the data temperature of a file or its
ranges.
In each hash list of hash table, the hash node
will keep track of temperature info.
Signed-off-by: Zhi
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Introduce one new mount option '-o hottrack',
and add its parsing support.
Its usage looks like:
mount -o hottrack
mount -o nouser,hottrack
mount -o nouser,hottrack,loop
mount -o hottrack,nouser
Signed-off-by: Zhi Yong Wu
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Add initialization function to create some
key data structures when hot tracking is enabled;
Clean up them when hot tracking is disabled
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
fs/hot_tracking.c | 60
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
Documentation/filesystems/hot_tracking.txt | 106
1 files changed, 106 insertions(+), 0 deletions(-)
create mode 100644 Documentation/filesystems/hot_tracking.txt
On Thu, Sep 20, 2012 at 08:46:52PM -0700, Marc MERLIN wrote:
On Thu, Sep 20, 2012 at 10:17:47AM -0700, Marc MERLIN wrote:
I had a btrfs built on top of 5 drives (dmcrypt devices).
The drive then died while I was writing to the filesystem and my system
crashed and rebooted:
No need to use specific var to record the return value of
__btrfs_end_transaction and check if it is not zero.
Just return the result directly as btrfs_end_transaction_dmeta.
Signed-off-by: Wang Sheng-Hui shh...@gmail.com
---
fs/btrfs/transaction.c | 21 +++--
1 files changed,
trivial code cleanup.
Signed-off-by: Wang Sheng-Hui shh...@gmail.com
---
fs/btrfs/transaction.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 8fcc501..469a8b6 100644
--- a/fs/btrfs/transaction.c
+++
In the big loop, cur_trans will be set fs_info-running_transaction
before it's used. And after kmem_cache_free it and goto loop, it will
be setup again. No need to setup it immediately after freed.
Signed-off-by: Wang Sheng-Hui shh...@gmail.com
---
fs/btrfs/transaction.c |1 -
1 files
trivial code cleanup.
Signed-off-by: Wang Sheng-Hui shh...@gmail.com
---
fs/btrfs/transaction.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 675d813..3279df2 100644
--- a/fs/btrfs/transaction.c
+++
On Sun, 23 Sep 2012 14:49:24 +0300, Ilya Dryomov wrote:
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9384a2a..d8d53f7 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3335,6 +3335,24 @@ static long btrfs_ioctl_balance(struct file *file,
void __user *arg)
From: Anand Jain anand.j...@oracle.com
Signed-off-by: Anand Jain anand.j...@oracle.com
---
cmds-subvolume.c | 36
1 files changed, 24 insertions(+), 12 deletions(-)
diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index f4aa80f..f6c488e 100644
---
David,
Thanks for the comments.
Yes, this is useful, thanks. I'm thinking if it's ok to stop on
first error, ie. when the subvolume does not exist or is a directory.
I am fine with either ways. I shall just keep it as it is as of now.
-Anand
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Check range early to avoid further check/compute in case
of range error.
Signed-off-by: Wang Sheng-Hui shh...@gmail.com
---
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
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