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authorDavid Howells <dhowells@redhat.com>2023-11-29 17:56:18 +0100
committerSteve French <stfrench@microsoft.com>2023-11-30 02:59:49 +0100
commit88010155f02b2c3b03c71609ba6ceeb457ece095 (patch)
tree113ed3c393975642814924acf07a707cd9e10a28 /fs
parentcifs: Fix FALLOC_FL_ZERO_RANGE by setting i_size if EOF moved (diff)
downloadlinux-88010155f02b2c3b03c71609ba6ceeb457ece095.tar.xz
linux-88010155f02b2c3b03c71609ba6ceeb457ece095.zip
cifs: Fix FALLOC_FL_INSERT_RANGE by setting i_size after EOF moved
Fix the cifs filesystem implementations of FALLOC_FL_INSERT_RANGE, in smb3_insert_range(), to set i_size after extending the file on the server and before we do the copy to open the gap (as we don't clean up the EOF marker if the copy fails). Fixes: 7fe6fe95b936 ("cifs: add FALLOC_FL_INSERT_RANGE support") Cc: stable@vger.kernel.org Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Paulo Alcantara <pc@manguebit.com> cc: Shyam Prasad N <nspmangalore@gmail.com> cc: Rohith Surabattula <rohiths.msft@gmail.com> cc: Jeff Layton <jlayton@kernel.org> cc: linux-cifs@vger.kernel.org cc: linux-mm@kvack.org Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/smb/client/smb2ops.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index f1b0b2b11ab2..45931115f475 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -3745,6 +3745,9 @@ static long smb3_insert_range(struct file *file, struct cifs_tcon *tcon,
if (rc < 0)
goto out_2;
+ truncate_setsize(inode, old_eof + len);
+ fscache_resize_cookie(cifs_inode_cookie(inode), i_size_read(inode));
+
rc = smb2_copychunk_range(xid, cfile, cfile, off, count, off + len);
if (rc < 0)
goto out_2;