On 08 Apr 2007 06:32:26 +0200, Christer Weinigel <[EMAIL PROTECTED]> wrote:
[EMAIL PROTECTED] writes:
> Lennart. Tell me again that these results from
>
> http://linuxhelp.150m.com/resources/fs-benchmarks.htm and
> http://m.domaindlx.com/LinuxHelp/resources/fs-benchmarks.htm
>
> are not of inter
descriptive of *how*
it does the work rather than what the *purpose* is. So this patch renames
the function to zero_page_data(), and calls it from the various places that
currently open code it.
Compile tested in x86_64.
signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
ed on x86_64.
signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
cifs/file.c |9 +
ext4/writeback.c | 17 +
reiser4/plugin/item/extent_file_ops.c | 13 +++--
3 files changed, 5 insertions(+), 3
On 4/10/07, Anton Altaparmakov <[EMAIL PROTECTED]> wrote:
On 10 Apr 2007, at 07:10, Andrew Morton wrote:
> On Mon, 09 Apr 2007 21:31:37 -0700 Nate Diller
> <[EMAIL PROTECTED]> wrote:
>> It's very common for file systems to need to zero part or all of a
>> page,
the open-coded ones and the old
memclear_highpage_flush() ones. Following this patch is a series of
conversions for each file system individually, per AKPM, and finally a patch
deprecating the old call. The diffstat below shows the entire patchset.
Compile tested in x86_64.
signed-off-by: Nate
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/affs/file.c
linux-2.6.21-rc6-mm1-test/fs/affs/file.c
--- linux-2.6.21-rc6-mm1/fs/affs/file.c 2007-04-09 17:23:48.0 -0700
+++ linux-
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ecryptfs/mmap.c
linux-2.6.21-rc6-mm1-test/fs/ecryptfs/mmap.c
--- linux-2.6.21-rc6-mm1/fs/ecryptfs/mmap.c 2007-04-09 17:24:03.0
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ext3/inode.c
linux-2.6.21-rc6-mm1-test/fs/ext3/inode.c
--- linux-2.6.21-rc6-mm1/fs/ext3/inode.c2007-04-09 17:24:03.0
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ext4/inode.c
linux-2.6.21-rc6-mm1-test/fs/ext4/inode.c
--- linux-2.6.21-rc6-mm1/fs/ext4/inode.c2007-04-10 17:15:04.0
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/gfs2/bmap.c
linux-2.6.21-rc6-mm1-test/fs/gfs2/bmap.c
--- linux-2.6.21-rc6-mm1/fs/gfs2/bmap.c 2007-04-09 17:23:48.0 -0700
+++ linux-
Use zero_user_page() instead of the newly deprecated memclear_highpage_flush().
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/nfs/read.c
linux-2.6.21-rc6-mm1-test/fs/nfs/read.c
--- linux-2.6.21-rc6-mm1/fs/nfs/read.c 2007-04-09
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/reiserfs/file.c
linux-2.6.21-rc6-mm1-test/fs/reiserfs/file.c
--- linux-2.6.21-rc6-mm1/fs/reiserfs/file.c 2007-04-09 17:24:03.0
Use zero_user_page() instead of open-coding it. Also replace the (mostly)
redundant zero_page() function.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff
linux-2.6.21-rc6-mm1/fs/reiser4/plugin/file/cryptcompress.c
linux-2.6.21-rc6-mm1-test/fs/reiser4/plugi
Now that all the in-tree users are converted over to zero_user_page(),
deprecate the old memclear_highpage_flush() call.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/include/linux/highmem.h
linux-2.6.21-rc6-mm1-test/include/linux/hig
Use zero_user_page() instead of the newly deprecated memclear_highpage_flush().
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/xfs/linux-2.6/xfs_lrw.c
linux-2.6.21-rc6-mm1-test/fs/xfs/linux-2.6/xfs_lrw.c
--- linux-2.6.21-rc6-mm1/fs/xfs
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ocfs2/aops.c
linux-2.6.21-rc6-mm1-test/fs/ocfs2/aops.c
--- linux-2.6.21-rc6-mm1/fs/ocfs2/aops.c2007-04-09 17:24:03.0
Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ntfs/aops.c
linux-2.6.21-rc6-mm1-test/fs/ntfs/aops.c
--- linux-2.6.21-rc6-mm1/fs/ntfs/aops.c 2007-04-09 10:41:47.0 -0700
+++ linux-
On 4/10/07, Andrew Morton <[EMAIL PROTECTED]> wrote:
On Tue, 10 Apr 2007 20:36:00 -0700 Nate Diller <[EMAIL PROTECTED]> wrote:
> It's very common for file systems to need to zero part or all of a page, the
> simplist way is just to use kmap_atomic() and memset(). There
checker functions that
return an error if the page is corrupted or has some other error. This
simplifies the logic since the checker function is not part of any helper
function anymore.
Compile tested on x86_64.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
drivers/mtd/d
: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/cramfs/inode.c
linux-2.6.21-rc6-mm1-test/fs/cramfs/inode.c
--- linux-2.6.21-rc6-mm1/fs/cramfs/inode.c 2007-04-09 17:24:03.0
-0700
+++ linux-2.6.21-rc6-mm1-test/fs/cramfs/inode.c 2007-04-09
needing to keep the page locked. These changes collectively eliminate a
substantial amount of private fs logic in favor of generic code.
It also simplifies filemap.c significantly, by assuming that callers want
synchronous behavior, which is true for all callers anyway except one.
Signed-off-by: Nate
Replace afs_dir_get_page() and afs_dir_put_page() using the new
read_kmap_page() and put_kmapped_page() calls, and eliminate unnecessary
PageError checks. Also, change the afs_dir_check_page() call to return
the page's error status, and update the call site accordingly.
Signed-off-by:
Replace ext2_get_page() and ext2_put_page() using the new read_kmap_page()
and put_kmapped_page() calls. Also, change the ext2_check_page() call to
return the page's error status, and update the call sites accordingly.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN
Now that read_mapping_page() does error checking internally, there is no
need to check PageError here.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/hfsplus/bnode.c
linux-2.6.21-rc6-mm1-test/fs/hfsplus/bnode.c
--- linux-2.6.21-rc6-
Use the new locking variant of read_mapping_page to avoid doing extra work.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/jfs/jfs_metapage.c
linux-2.6.21-rc6-mm1-test/fs/jfs/jfs_metapage.c
--- linux-2.6.21-rc6-mm1/fs/jfs/jfs_metapage.c
Replace jffs2_gc_fetch_page() and jffs2_gc_release_page() using the
read_cache_page() and put_kmapped_page() calls, and update the call site
accordingly. Explicit calls to kmap()/kunmap() make the code more clear.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff
Replace minix dir_get_page() and dir_put_page() using the new
read_kmap_page() and put_kmapped_page()/put_locked_page() calls. Also, use
__read_kmap_page() instead of re-taking the page_lock.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc5-
Replace page_read() with read_kmap_page()/__read_kmap_page(). This probably
fixes behaviour on highmem systems, since page_address() was being used
without kmap(). Also eliminate the need to re-take the page lock during
writes to the page.
Signed-off-by: Nate Diller <[EMAIL PROTEC
read_mapping_page() is now fully synchronous, so there's no need wait for
the page lock or check for I/O errors.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff
linux-2.6.21-rc6-mm1/fs/reiser4/plugin/file/tail_conversion.c
linux-2.6.21-rc6-mm1-test/fs/rei
Remove unneeded PageError checking in read_dev_sector(), and clean up the
code a bit.
Can anyone point out why it's OK to use page_address() here on a page which
has not been kmapped? If it's not OK, then a good number of callers need to
be fixed.
Signed-off-by: Nate Diller <[EM
Replace sysv dir_get_page() with the new read_kmap_page().
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc5-mm4/fs/sysv/dir.c
linux-2.6.21-rc5-mm4-test/fs/sysv/dir.c
--- linux-2.6.21-rc5-mm4/fs/sysv/dir.c 2007-04-05 17:14:25.0 -0700
+++
Replace vxfs_get_page() with the new read_kmap_page().
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc5-mm4/fs/freevxfs/vxfs_extern.h
linux-2.6.21-rc5-mm4-test/fs/freevxfs/vxfs_extern.h
--- linux-2.6.21-rc5-mm4/fs/freevxfs/vxfs_extern.h 2007
igned-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc5-mm4/fs/ufs/balloc.c
linux-2.6.21-rc5-mm4-test/fs/ufs/balloc.c
--- linux-2.6.21-rc5-mm4/fs/ufs/balloc.c2007-04-05 17:13:29.0
-0700
+++ linux-2.6.21-rc5-mm4-test/fs/ufs/balloc.c 2007-
Replace ntfs_map_page() and ntfs_unmap_page() using the new read_kmap_page()
and put_kmapped_page() calls, and their locking variants, and remove
unneeded PageError checking.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc5-mm4/fs/ntfs/aops.h
Replace reiserfs_get_page() and reiserfs_put_page() using the new
read_kmap_page() and put_kmapped_page() calls and their locking variants.
Also, propagate the gfp_mask() deadlock comment to callsites.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.
Now that read_mapping_page() does error checking internally, there is no
need to check PageError here.
Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
---
diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/hfs/bnode.c
linux-2.6.21-rc6-mm1-test/fs/hfs/bnode.c
--- linux-2.6.21-rc6-mm1/fs/hfs/b
On 4/12/07, David Howells <[EMAIL PROTECTED]> wrote:
Nate Diller <[EMAIL PROTECTED]> wrote:
> -static struct page *afs_dir_get_page(struct inode *dir, unsigned long index)
NAK. This conflicts with my AFS security patches, and eliminates any way of
passing the key through to rea
On 4/12/07, Phillip Lougher <[EMAIL PROTECTED]> wrote:
Nate Diller wrote:
> + page = read_cache_page(OFNI_EDONI_2SFFJ(f)->i_mapping,
> + start >> PAGE_CACHE_SHIFT,
> + (void *)
On 4/12/07, Roman Zippel <[EMAIL PROTECTED]> wrote:
Hi,
On Thu, 12 Apr 2007, Christoph Hellwig wrote:
> On Wed, Apr 11, 2007 at 07:49:38PM -0700, Nate Diller wrote:
> > read_mapping_page_async() is going away, so convert its only user to
> > read_mapping_page(). Thi
On 4/12/07, David Howells <[EMAIL PROTECTED]> wrote:
Nate Diller <[EMAIL PROTECTED]> wrote:
> Hmmm you're right. Is your security work going into the next -mm?
I don't know. Andrew hasn't said anything. Andrew? Are you waiting for it
to go through DaveM
On 11/30/06, Wendy Cheng <[EMAIL PROTECTED]> wrote:
How about a simple and plain change with this uploaded patch
The idea is, instead of unconditionally dropping every buffer associated
with the particular mount point (that defeats the purpose of page
caching), base kernel exports the "drop
This series is an attempt to generalize the async I/O paths to be
implementation agnostic. It completely eliminates knowledge of
the kiocb structure in the generic code and makes it private within the
current aio code. Things get noticeably cleaner without that layering
violation.
The new interf
this patch removes struct sock_iocb
Its purpose seems to have dwindled to a mere container for struct
scm_cookie, and all of the users of scm_cookie seem to require
re-initializing it each time anyway. Besides, keeping such data around from
one call to the next seems to me like a layering violati
Define a new function typedef for I/O completion at the file/iovec level --
typedef void (file_endio_t)(void *endio_data, ssize_t count, int err);
and convert aio_complete and all its callers to this new prototype.
---
drivers/usb/gadget/inode.c | 24 +++---
fs/aio.c
Convert the internals of blkdev_direct_IO to use a generic endio function,
instead of directly calling aio_complete. This may also fix some bugs/races
in this code, for instance it checks bio->bi_size instead of assuming it's
zero, and it atomically accumulates the bytes_done counter (assuming tha
This converts the iternals of nfs's directIO support to use a generic endio
function, instead of directly calling aio_complete. It's pretty easy
because it already has a pretty abstracted completion path.
---
diff -urpN -X dontdiff a/fs/nfs/direct.c b/fs/nfs/direct.c
--- a/fs/nfs/direct.c 2007
Convert code using iocb->ki_left to use the more generic iov_length() call.
---
diff -urpN -X dontdiff a/fs/ocfs2/file.c b/fs/ocfs2/file.c
--- a/fs/ocfs2/file.c 2007-01-10 11:50:26.0 -0800
+++ b/fs/ocfs2/file.c 2007-01-10 12:42:09.0 -0800
@@ -1157,7 +1157,7 @@ static ssize_t
This removes the aio implementation from the usb gadget file system. Aside
from making very creative (!) use of the aio retry path, it can't be of any
use performance-wise because it always kmalloc()s a bounce buffer for the
*whole* I/O size. Perhaps the only reason to keep it around is the abili
This converts the internals of __blockdev_direct_IO in fs/direct-io.c to use
a generic endio function, instead of directly calling aio_complete. It also
changes the semantics of dio_iodone to be more friendly to its only users,
xfs and ocfs2. This allows the caller to know how to release locks an
This converts the _locking variant of blockdev_direct_IO to use a generic
endio function, and updates all the FS callsites.
---
Documentation/filesystems/Locking |5 +++--
Documentation/filesystems/vfs.txt |5 +++--
fs/block_dev.c|9 -
fs/ext2/inode.c
Remove unused arg from socket operations
The sendmsg and recvmsg socket operations take a kiocb pointer, but none of
the functions actually use it. There's really no need even theoretically,
it's really quite ugly having it there at all. Also, removing it will pave
the way for a more generic com
On 1/15/07, Christoph Hellwig <[EMAIL PROTECTED]> wrote:
On Mon, Jan 15, 2007 at 05:54:50PM -0800, Nate Diller wrote:
> This series is an attempt to generalize the async I/O paths to be
> implementation agnostic. It completely eliminates knowledge of
> the kiocb structure in t
On 1/15/07, Christoph Hellwig <[EMAIL PROTECTED]> wrote:
On Mon, Jan 15, 2007 at 05:54:50PM -0800, Nate Diller wrote:
> Convert code using iocb->ki_left to use the more generic iov_length() call.
No way. We need to reduce the numer of iovec traversals, not adding
more of them.
ok
On 1/15/07, David Brownell <[EMAIL PROTECTED]> wrote:
On Monday 15 January 2007 5:54 pm, Nate Diller wrote:
> This removes the aio implementation from the usb gadget file system.
NAK. I see a deep mis-understanding here.
> Aside
> from making very creative (!) use of the aio
On 1/15/07, David Brownell <[EMAIL PROTECTED]> wrote:
On Monday 15 January 2007 5:54 pm, Nate Diller wrote:
> --- a/drivers/usb/gadget/inode.c 2007-01-12 14:42:29.0 -0800
> +++ b/drivers/usb/gadget/inode.c 2007-01-12 14:25:34.0 -0800
> @@ -559,35 +559,3
On Wed, 17 Jan 2007, Benjamin LaHaise wrote:
On Mon, Jan 15, 2007 at 08:25:15PM -0800, Nate Diller wrote:
the right thing to do from a design perspective. Hopefully it enables
a new architecture that can reduce context switches in I/O completion,
and reduce overhead. That's the real m
On 2/8/07, Nick Piggin <[EMAIL PROTECTED]> wrote:
On Thu, Feb 08, 2007 at 07:49:53PM +, Christoph Hellwig wrote:
> On Thu, Feb 08, 2007 at 02:07:24PM +0100, Nick Piggin wrote:
> > Add an iterator data structure to operate over an iovec. Add usercopy
> > operators needed by generic_file_buffer
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