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authorDavid Howells <dhowells@redhat.com>2024-09-17 08:54:28 +0100
committerSteve French <stfrench@microsoft.com>2024-09-24 21:57:00 -0500
commit665db14d0712ac27f6a0081510bd811efb3faa3c (patch)
tree6813e8ea8299237ccc65d45f7b15dcf2a5f67355
parent387676fabf15f8e772fd22dd05794639115e4216 (diff)
netfs, cifs: Fix mtime/ctime update for mmapped writes
The cifs flag CIFS_INO_MODIFIED_ATTR, which indicates that the mtime and ctime need to be written back on close, got taken over by netfs as NETFS_ICTX_MODIFIED_ATTR to avoid the need to call a function pointer to set it. The flag gets set correctly on buffered writes, but doesn't get set by netfs_page_mkwrite(), leading to occasional failures in generic/080 and generic/215. Fix this by setting the flag in netfs_page_mkwrite(). Fixes: 73425800ac94 ("netfs, cifs: Move CIFS_INO_MODIFIED_ATTR to netfs_inode") Reported-by: kernel test robot <oliver.sang@intel.com> Closes: https://lore.kernel.org/oe-lkp/202409161629.98887b2-oliver.sang@intel.com Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.com> cc: Jeff Layton <jlayton@kernel.org> cc: linux-cifs@vger.kernel.org cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Steve French <stfrench@microsoft.com>
-rw-r--r--fs/netfs/buffered_write.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c
index d7eae597e54d..b3910dfcb56d 100644
--- a/fs/netfs/buffered_write.c
+++ b/fs/netfs/buffered_write.c
@@ -552,6 +552,7 @@ vm_fault_t netfs_page_mkwrite(struct vm_fault *vmf, struct netfs_group *netfs_gr
trace_netfs_folio(folio, netfs_folio_trace_mkwrite);
netfs_set_group(folio, netfs_group);
file_update_time(file);
+ set_bit(NETFS_ICTX_MODIFIED_ATTR, &ictx->flags);
if (ictx->ops->post_modify)
ictx->ops->post_modify(inode);
ret = VM_FAULT_LOCKED;