Hello,
to provide reliable support for filesystem freezing, filesystems need to have
complete control over when metadata is changed. In particular,
file_update_time() calls from page fault code make it impossible for
filesystems to prevent inodes from being dirtied while the filesystem is
CC: Steve French sfre...@samba.org
CC: linux-cifs@vger.kernel.org
Signed-off-by: Jan Kara j...@suse.cz
---
fs/cifs/file.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
BTW: How does cifs_page_mkwrite() protect against races with truncate?
See e.g. checks in __block_page_mkwrite
CC: Steve French sfre...@samba.org
CC: linux-cifs@vger.kernel.org
Signed-off-by: Jan Kara j...@suse.cz
---
fs/cifs/file.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 4dd9283..8e3b23b 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs
On Thu 01-03-12 07:25:37, Jeff Layton wrote:
On Thu, 1 Mar 2012 12:41:38 +0100
Jan Kara j...@suse.cz wrote:
CC: Steve French sfre...@samba.org
CC: linux-cifs@vger.kernel.org
Signed-off-by: Jan Kara j...@suse.cz
---
fs/cifs/file.c |3 +++
1 files changed, 3 insertions(+), 0
On Thu 01-03-12 18:29:42, Ted Tso wrote:
On Thu, Mar 01, 2012 at 12:41:34PM +0100, Jan Kara wrote:
To fix the issue, this patch set changes page fault code to call
file_update_time() only when -page_mkwrite() callback is not provided. If
the
callback is provided
ncp_file_mmap does not set
.mkwrite - it should use filemap_page_mkwrite() I think.
Honza
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Jan Kara j...@suse.cz
SUSE Labs, CR
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Honza
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Jan Kara j...@suse.cz
SUSE Labs, CR
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the FSs that do care, already take care of it.
I'm not exactly sure whether FSs that do care didn't start to use generic
functions which now always call wait_on_page_writeback() for quite a few
releases...
Honza
--
Jan Kara j
something with a 4Gb+ blocksize?
(4) Should the inode number and data version number fields be 128-bit?
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On Thu 28-11-13 13:07:24, David Howells wrote:
Jan Kara j...@suse.cz wrote:
unsigned long long st_blocks;
When we are doing this, can we please also change 'st_blocks' to
'st_bytes'? We track space usage in kernel in bytes for a long time so it
would be nice
.
- gfs2 also used generic_write_sync to implement a crude version
of fallocate. It has been switched to use an open coded variant
instead.
Signed-off-by: Christoph Hellwig h...@lst.de
Looks good. You can add:
Reviewed-by: Jan Kara j...@suse.cz
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