public inbox for [email protected]
 help / color / mirror / Atom feed
From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>,
	[email protected], Conrad Meyer <[email protected]>,
	[email protected], [email protected]
Subject: [PATCH v2 3/7] filemap: introduce filemap_invalidate_pages
Date: Thu, 22 Aug 2024 04:35:53 +0100	[thread overview]
Message-ID: <5bf2b0f08ec25fa649f04c0847722c6b028f660c.1724297388.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

kiocb_invalidate_pages() is useful for the write path, however not
everything is backed by kiocb and we want to reuse the function for bio
based discard implementation. Extract and and reuse a new helper called
filemap_invalidate_pages(), which takes a argument indicating whether it
should be non-blocking and might return -EAGAIN.

Signed-off-by: Pavel Begunkov <[email protected]>
---
 include/linux/pagemap.h |  2 ++
 mm/filemap.c            | 18 +++++++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index d9c7edb6422b..e39c3a7ce33c 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -32,6 +32,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
 		pgoff_t start, pgoff_t end);
 int kiocb_invalidate_pages(struct kiocb *iocb, size_t count);
 void kiocb_invalidate_post_direct_write(struct kiocb *iocb, size_t count);
+int filemap_invalidate_pages(struct address_space *mapping,
+			     loff_t pos, loff_t end, bool nowait);
 
 int write_inode_now(struct inode *, int sync);
 int filemap_fdatawrite(struct address_space *);
diff --git a/mm/filemap.c b/mm/filemap.c
index d62150418b91..74baec119239 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2712,14 +2712,12 @@ int kiocb_write_and_wait(struct kiocb *iocb, size_t count)
 }
 EXPORT_SYMBOL_GPL(kiocb_write_and_wait);
 
-int kiocb_invalidate_pages(struct kiocb *iocb, size_t count)
+int filemap_invalidate_pages(struct address_space *mapping,
+			     loff_t pos, loff_t end, bool nowait)
 {
-	struct address_space *mapping = iocb->ki_filp->f_mapping;
-	loff_t pos = iocb->ki_pos;
-	loff_t end = pos + count - 1;
 	int ret;
 
-	if (iocb->ki_flags & IOCB_NOWAIT) {
+	if (nowait) {
 		/* we could block if there are any pages in the range */
 		if (filemap_range_has_page(mapping, pos, end))
 			return -EAGAIN;
@@ -2738,6 +2736,16 @@ int kiocb_invalidate_pages(struct kiocb *iocb, size_t count)
 	return invalidate_inode_pages2_range(mapping, pos >> PAGE_SHIFT,
 					     end >> PAGE_SHIFT);
 }
+
+int kiocb_invalidate_pages(struct kiocb *iocb, size_t count)
+{
+	struct address_space *mapping = iocb->ki_filp->f_mapping;
+	loff_t pos = iocb->ki_pos;
+	loff_t end = pos + count - 1;
+
+	return filemap_invalidate_pages(mapping, pos, end,
+					iocb->ki_flags & IOCB_NOWAIT);
+}
 EXPORT_SYMBOL_GPL(kiocb_invalidate_pages);
 
 /**
-- 
2.45.2


  parent reply	other threads:[~2024-08-22  3:35 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-22  3:35 [PATCH v2 0/7] implement async block discards/etc. via io_uring Pavel Begunkov
2024-08-22  3:35 ` [PATCH v2 1/7] io_uring/cmd: expose iowq to cmds Pavel Begunkov
2024-08-22  3:35 ` [PATCH v2 2/7] io_uring/cmd: give inline space in request " Pavel Begunkov
2024-08-22  3:35 ` Pavel Begunkov [this message]
2024-08-22  6:37   ` [PATCH v2 3/7] filemap: introduce filemap_invalidate_pages Christoph Hellwig
2024-08-22  3:35 ` [PATCH v2 4/7] block: introduce blk_validate_write() Pavel Begunkov
2024-08-22  6:33   ` Christoph Hellwig
2024-08-22 12:36     ` Pavel Begunkov
2024-08-23 11:52       ` Christoph Hellwig
2024-08-22  3:35 ` [PATCH v2 5/7] block: implement async discard as io_uring cmd Pavel Begunkov
2024-08-22  6:46   ` Christoph Hellwig
2024-08-22 13:07     ` Pavel Begunkov
2024-08-23 11:59       ` Christoph Hellwig
2024-09-04 14:08         ` Pavel Begunkov
2024-08-22  3:35 ` [PATCH v2 6/7] block: implement async wire write zeroes Pavel Begunkov
2024-08-22  6:50   ` Christoph Hellwig
2024-08-22 13:09     ` Pavel Begunkov
2024-08-22  3:35 ` [PATCH v2 7/7] block: implement async secure erase Pavel Begunkov
2024-08-22  6:36   ` Christoph Hellwig
2024-08-22 12:36     ` Pavel Begunkov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=5bf2b0f08ec25fa649f04c0847722c6b028f660c.1724297388.git.asml.silence@gmail.com \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox