2022-02-21 00:16:27

by Edward Shishkin

[permalink] [raw]
Subject: [PATCH] reiserfs: get rid of AOP_FLAG_CONT_EXPAND flag

Signed-off-by: Edward Shishkin <[email protected]>
---
fs/reiserfs/inode.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index f49b72ccac4c..e943930939f5 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2763,13 +2763,6 @@ static int reiserfs_write_begin(struct file *file,
int old_ref = 0;

inode = mapping->host;
- *fsdata = NULL;
- if (flags & AOP_FLAG_CONT_EXPAND &&
- (pos & (inode->i_sb->s_blocksize - 1)) == 0) {
- pos ++;
- *fsdata = (void *)(unsigned long)flags;
- }
-
index = pos >> PAGE_SHIFT;
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page)
@@ -2896,9 +2889,6 @@ static int reiserfs_write_end(struct file *file, struct address_space *mapping,
unsigned start;
bool locked = false;

- if ((unsigned long)fsdata & AOP_FLAG_CONT_EXPAND)
- pos ++;
-
reiserfs_wait_on_write_block(inode->i_sb);
if (reiserfs_transaction_running(inode->i_sb))
th = current->journal_info;
@@ -3316,7 +3306,11 @@ int reiserfs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,

/* fill in hole pointers in the expanding truncate case. */
if (attr->ia_size > inode->i_size) {
- error = generic_cont_expand_simple(inode, attr->ia_size);
+ loff_t pos = attr->ia_size;
+
+ if ((pos & (inode->i_sb->s_blocksize - 1)) == 0)
+ pos++;
+ error = generic_cont_expand_simple(inode, pos);
if (REISERFS_I(inode)->i_prealloc_count > 0) {
int err;
struct reiserfs_transaction_handle th;
--
2.21.3


2022-02-22 11:23:40

by Jan Kara

[permalink] [raw]
Subject: Re: [PATCH] reiserfs: get rid of AOP_FLAG_CONT_EXPAND flag

On Mon 21-02-22 00:22:19, Edward Shishkin wrote:
> Signed-off-by: Edward Shishkin <[email protected]>
> ---
> fs/reiserfs/inode.c | 16 +++++-----------
> 1 file changed, 5 insertions(+), 11 deletions(-)

Thanks! I have queued this patch into my tree.

Honza

>
> diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
> index f49b72ccac4c..e943930939f5 100644
> --- a/fs/reiserfs/inode.c
> +++ b/fs/reiserfs/inode.c
> @@ -2763,13 +2763,6 @@ static int reiserfs_write_begin(struct file *file,
> int old_ref = 0;
>
> inode = mapping->host;
> - *fsdata = NULL;
> - if (flags & AOP_FLAG_CONT_EXPAND &&
> - (pos & (inode->i_sb->s_blocksize - 1)) == 0) {
> - pos ++;
> - *fsdata = (void *)(unsigned long)flags;
> - }
> -
> index = pos >> PAGE_SHIFT;
> page = grab_cache_page_write_begin(mapping, index, flags);
> if (!page)
> @@ -2896,9 +2889,6 @@ static int reiserfs_write_end(struct file *file, struct address_space *mapping,
> unsigned start;
> bool locked = false;
>
> - if ((unsigned long)fsdata & AOP_FLAG_CONT_EXPAND)
> - pos ++;
> -
> reiserfs_wait_on_write_block(inode->i_sb);
> if (reiserfs_transaction_running(inode->i_sb))
> th = current->journal_info;
> @@ -3316,7 +3306,11 @@ int reiserfs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
>
> /* fill in hole pointers in the expanding truncate case. */
> if (attr->ia_size > inode->i_size) {
> - error = generic_cont_expand_simple(inode, attr->ia_size);
> + loff_t pos = attr->ia_size;
> +
> + if ((pos & (inode->i_sb->s_blocksize - 1)) == 0)
> + pos++;
> + error = generic_cont_expand_simple(inode, pos);
> if (REISERFS_I(inode)->i_prealloc_count > 0) {
> int err;
> struct reiserfs_transaction_handle th;
> --
> 2.21.3
>
--
Jan Kara <[email protected]>
SUSE Labs, CR

2022-02-22 14:28:11

by Matthew Wilcox

[permalink] [raw]
Subject: Re: [PATCH] reiserfs: get rid of AOP_FLAG_CONT_EXPAND flag

On Tue, Feb 22, 2022 at 11:27:27AM +0100, Jan Kara wrote:
> On Mon 21-02-22 00:22:19, Edward Shishkin wrote:
> > Signed-off-by: Edward Shishkin <[email protected]>
> > ---
> > fs/reiserfs/inode.c | 16 +++++-----------
> > 1 file changed, 5 insertions(+), 11 deletions(-)
>
> Thanks! I have queued this patch into my tree.

I added the following commit message to it for my tree:

Author: Edward Shishkin <[email protected]>
Date: Mon Feb 21 00:22:19 2022 +0100

reiserfs: Stop using AOP_FLAG_CONT_EXPAND flag

We can simplify write_begin() and write_end() by handling the
cont_expand case in reiserfs_setattr().

Signed-off-by: Edward Shishkin <[email protected]>
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>

I don't object if it goes via your tree; I doubt I'll get the AOP_FLAG
removal finished in time for the next merge window.

2022-02-23 13:45:33

by Jan Kara

[permalink] [raw]
Subject: Re: [PATCH] reiserfs: get rid of AOP_FLAG_CONT_EXPAND flag

On Tue 22-02-22 13:38:19, Matthew Wilcox wrote:
> On Tue, Feb 22, 2022 at 11:27:27AM +0100, Jan Kara wrote:
> > On Mon 21-02-22 00:22:19, Edward Shishkin wrote:
> > > Signed-off-by: Edward Shishkin <[email protected]>
> > > ---
> > > fs/reiserfs/inode.c | 16 +++++-----------
> > > 1 file changed, 5 insertions(+), 11 deletions(-)
> >
> > Thanks! I have queued this patch into my tree.
>
> I added the following commit message to it for my tree:
>
> Author: Edward Shishkin <[email protected]>
> Date: Mon Feb 21 00:22:19 2022 +0100
>
> reiserfs: Stop using AOP_FLAG_CONT_EXPAND flag
>
> We can simplify write_begin() and write_end() by handling the
> cont_expand case in reiserfs_setattr().
>
> Signed-off-by: Edward Shishkin <[email protected]>
> Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>

Yeah, I have written some changelog as well :) Something like:

reiserfs: get rid of AOP_FLAG_CONT_EXPAND flag

Remove usage of AOP_FLAG_CONT_EXPAND flag. Reiserfs is the only user of
it and it is easy to avoid.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Edward Shishkin <[email protected]>
Signed-off-by: Jan Kara <[email protected]>

> I don't object if it goes via your tree; I doubt I'll get the AOP_FLAG
> removal finished in time for the next merge window.

OK, I'll keep it in my tree then and push it to Linus for the merge window.

Honza
--
Jan Kara <[email protected]>
SUSE Labs, CR