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afs: Fix setting of mtime when creating a file/dir/symlink

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[ Upstream commit a27648c742104a833a01c54becc24429898d85bf ]

kafs incorrectly passes a zero mtime (ie. 1st Jan 1970) to the server when
creating a file, dir or symlink because the mtime recorded in the
afs_operation struct gets passed to the server by the marshalling routines,
but the afs_mkdir(), afs_create() and afs_symlink() functions don't set it.

This gets masked if a file or directory is subsequently modified.

Fix this by filling in op->mtime before calling the create op.

Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Howells 2023-06-07 09:47:13 +01:00 committed by Greg Kroah-Hartman
parent 8ef72e7830
commit 7b0c76354a
1 changed files with 3 additions and 0 deletions
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3
fs/afs/dir.c
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@ -1394,6 +1394,7 @@ static int afs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
op->dentry = dentry;
op->create.mode = S_IFDIR | mode;
op->create.reason = afs_edit_dir_for_mkdir;
op->mtime = current_time(dir);
op->ops = &afs_mkdir_operation;
return afs_do_sync_operation(op);
}
@ -1697,6 +1698,7 @@ static int afs_create(struct user_namespace *mnt_userns, struct inode *dir,
op->dentry = dentry;
op->create.mode = S_IFREG | mode;
op->create.reason = afs_edit_dir_for_create;
op->mtime = current_time(dir);
op->ops = &afs_create_operation;
return afs_do_sync_operation(op);
@ -1832,6 +1834,7 @@ static int afs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
op->ops = &afs_symlink_operation;
op->create.reason = afs_edit_dir_for_symlink;
op->create.symlink = content;
op->mtime = current_time(dir);
return afs_do_sync_operation(op);
error: