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From: Dave Wysochanski <dwysocha@redhat.com>
To: Trond Myklebust <trondmy@hammerspace.com>,
	Anna Schumaker <anna.schumaker@netapp.com>
Cc: linux-nfs@vger.kernel.org, linux-cachefs@redhat.com
Subject: [RFC PATCH v2 11/14] NFS: Call nfs_fscache_invalidate() when write extends the size of the file
Date: Wed, 29 Jul 2020 10:12:26 -0400
Message-ID: <1596031949-26793-12-git-send-email-dwysocha@redhat.com> (raw)
In-Reply-To: <1596031949-26793-1-git-send-email-dwysocha@redhat.com>

If a write extends the size of the file and fscache is enabled, we
need to invalidate the object with the new size.  Otherwise, the next
read from the cache may fail inside cachefiles_shape_extent() due to
cookie->zero_point being smaller than the size of the file.

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
---
 fs/nfs/write.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 005eea29e0ec..2da99814da51 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -290,6 +290,7 @@ static void nfs_grow_file(struct page *page, unsigned int offset, unsigned int c
 		goto out;
 	i_size_write(inode, end);
 	NFS_I(inode)->cache_validity &= ~NFS_INO_INVALID_SIZE;
+	nfs_fscache_invalidate(inode);
 	nfs_inc_stats(inode, NFSIOS_EXTENDWRITE);
 out:
 	spin_unlock(&inode->i_lock);
-- 
1.8.3.1


  parent reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-29 14:12 [RFC PATCH v2 0/14] Convert NFS to new FS-Cache iter API Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 01/14] NFS: Clean up nfs_readpage() and nfs_readpages() Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 02/14] NFS: In nfs_readpage() only increment NFSIOS_READPAGES when read succeeds Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 03/14] NFS: Refactor nfs_readpage() and nfs_readpage_async() to use nfs_readdesc Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 04/14] NFS: Call readpage_async_filler() from nfs_readpage_async() Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 05/14] NFS: Add nfs_pageio_complete_read() and remove nfs_readpage_async() Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 06/14] NFS: Allow internal use of read structs and functions Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 07/14] NFS: Convert nfs_readpage() and readpages() to new fscache API Dave Wysochanski
2020-08-04 17:41   ` [Linux-cachefs] " David Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 08/14] NFS: Convert fscache_acquire_cookie and fscache_relinquish_cookie Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 09/14] NFS: Only use and unuse an fscache cookie a single time based on NFS_INO_FSCACHE Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 10/14] NFS: Convert fscache invalidation and update aux_data and i_size Dave Wysochanski
2020-07-29 14:12 ` Dave Wysochanski [this message]
2020-07-29 14:12 ` [RFC PATCH v2 12/14] NFS: Invalidate fscache for direct writes Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 13/14] NFS: Call fscache_resize_cookie() when inode size changes due to setattr Dave Wysochanski
2020-07-30 18:39   ` [Linux-cachefs] " Jeff Layton
2020-07-30 19:23     ` David Wysochanski
2020-07-30 19:59       ` David Wysochanski
2020-07-30 20:03       ` David Howells
2020-07-30 21:07         ` David Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 14/14] NFS: Allow NFS use of new fscache API in build Dave Wysochanski

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