That is most likely due to the filesystem cache. Try running iostat
and checking the block device statistics for the device you froze!
-- Mark
On Dec 31, 2008, at 9:39 AM, rishi agrawal wrote:
I used a kernel module to freeze the file system using the function
freeze_bdev
but when i am try to use touch command on the file system i am able to
create the files.
even read requests are served immediately
only the write requests are being blocked
until i call the thaw function
can i have an explanation for this
On Wed, Dec 31, 2008 at 6:11 PM, ajit mote <mail2blackmen@xxxxxxxxx>
wrote:
Hello,
I want to freeze a file system. I have seen a field in vfs
superblock
s_frozen.
But i am clue less about freezing the file system using that.
freeze_bdev function ( fs/buffer.c) lock a filesystem and force it
into a
consistent state ...
Above function use s_frozen flag to freez the file system ...
--
Regards,
Rishi B. Agrawal
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Thanks & Regards,
Ajit Subhash Mote
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Regards,
Rishi B. Agrawal
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